├── .gitignore ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── afra55 │ │ └── speedometer │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── afra55 │ │ │ └── speedometer │ │ │ ├── MainActivity.kt │ │ │ └── SpeedometerDialogFragment.kt │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable-xxhdpi │ │ ├── dialog_bg_1.png │ │ ├── dialog_bg_2.png │ │ ├── dialog_bg_3.png │ │ ├── dialog_bg_5.png │ │ ├── dialog_center_icon_1.png │ │ ├── dialog_center_icon_3.png │ │ ├── dialog_mask_bg_1.png │ │ ├── dialog_mask_bg_2.png │ │ ├── dialog_mask_bg_5.png │ │ ├── dialog_pointer_1.png │ │ ├── dialog_pointer_3.png │ │ └── dialog_pointer_5.png │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── activity_main.xml │ │ ├── fragment_speedometer_dialog.xml │ │ ├── view_speedometer_1.xml │ │ ├── view_speedometer_2.xml │ │ ├── view_speedometer_3.xml │ │ ├── view_speedometer_4.xml │ │ └── view_speedometer_5.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── afra55 │ └── speedometer │ └── ExampleUnitTest.kt ├── build.gradle ├── doc └── picture │ ├── font.png │ └── xfermode.png ├── gif ├── speedometer_1.gif ├── speedometer_2.gif ├── speedometer_3.gif ├── speedometer_4.gif └── speedometer_5.gif ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── license.svg ├── schematic_diagram.png ├── settings.gradle ├── speedometer ├── .gitignore ├── build.gradle ├── consumer-rules.pro ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── afra55 │ │ └── speedometer │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── afra55 │ │ │ └── speedometer │ │ │ ├── SpeedometerDialog.kt │ │ │ ├── SquareFrameByHeightLayout.kt │ │ │ ├── SquareFrameLayout.kt │ │ │ └── ViewPager2Indicator.kt │ └── res │ │ └── values │ │ └── attrs_speedometer.xml │ └── test │ └── java │ └── com │ └── afra55 │ └── speedometer │ └── ExampleUnitTest.kt └── speedometer_banner.jpeg /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/caches 5 | /.idea/libraries 6 | /.idea/modules.xml 7 | /.idea/workspace.xml 8 | /.idea/navEditor.xml 9 | /.idea/assetWizardSettings.xml 10 | .DS_Store 11 | /build 12 | /captures 13 | .externalNativeBuild 14 | .cxx 15 | ### JetBrains template 16 | # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm 17 | # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 18 | 19 | # User-specific stuff 20 | .idea/**/workspace.xml 21 | .idea/**/tasks.xml 22 | .idea/**/usage.statistics.xml 23 | .idea/**/dictionaries 24 | .idea/**/shelf 25 | 26 | # Generated files 27 | .idea/**/contentModel.xml 28 | 29 | # Sensitive or high-churn files 30 | .idea/**/dataSources/ 31 | .idea/**/dataSources.ids 32 | .idea/**/dataSources.local.xml 33 | .idea/**/sqlDataSources.xml 34 | .idea/**/dynamic.xml 35 | .idea/**/uiDesigner.xml 36 | .idea/**/dbnavigator.xml 37 | 38 | # Gradle 39 | .idea/**/gradle.xml 40 | .idea/**/libraries 41 | 42 | # Gradle and Maven with auto-import 43 | # When using Gradle or Maven with auto-import, you should exclude module files, 44 | # since they will be recreated, and may cause churn. Uncomment if using 45 | # auto-import. 46 | # .idea/artifacts 47 | # .idea/compiler.xml 48 | # .idea/modules.xml 49 | # .idea/*.iml 50 | # .idea/modules 51 | # *.iml 52 | # *.ipr 53 | 54 | # CMake 55 | cmake-build-*/ 56 | 57 | # Mongo Explorer plugin 58 | .idea/**/mongoSettings.xml 59 | 60 | # File-based project format 61 | *.iws 62 | 63 | # IntelliJ 64 | out/ 65 | 66 | # mpeltonen/sbt-idea plugin 67 | .idea_modules/ 68 | 69 | # JIRA plugin 70 | atlassian-ide-plugin.xml 71 | 72 | # Cursive Clojure plugin 73 | .idea/replstate.xml 74 | 75 | # Crashlytics plugin (for Android Studio and IntelliJ) 76 | com_crashlytics_export_strings.xml 77 | crashlytics.properties 78 | crashlytics-build.properties 79 | fabric.properties 80 | 81 | # Editor-based Rest Client 82 | .idea/httpRequests 83 | 84 | # Android studio 3.1+ serialized cache file 85 | .idea/caches/build_file_checksums.ser 86 | 87 | ### Android template 88 | # Built application files 89 | *.apk 90 | *.aar 91 | *.ap_ 92 | *.aab 93 | 94 | # Files for the ART/Dalvik VM 95 | *.dex 96 | 97 | # Java class files 98 | *.class 99 | 100 | # Generated files 101 | bin/ 102 | gen/ 103 | out/ 104 | # Uncomment the following line in case you need and you don't have the release build type files in your app 105 | # release/ 106 | 107 | # Gradle files 108 | .gradle/ 109 | build/ 110 | 111 | # Local configuration file (sdk path, etc) 112 | local.properties 113 | 114 | # Proguard folder generated by Eclipse 115 | proguard/ 116 | 117 | # Log Files 118 | *.log 119 | 120 | # Android Studio Navigation editor temp files 121 | .navigation/ 122 | 123 | # Android Studio captures folder 124 | captures/ 125 | 126 | # IntelliJ 127 | *.iml 128 | .idea/workspace.xml 129 | .idea/tasks.xml 130 | .idea/gradle.xml 131 | .idea/assetWizardSettings.xml 132 | .idea/dictionaries 133 | .idea/libraries 134 | # Android Studio 3 in .gitignore file. 135 | .idea/caches 136 | .idea/modules.xml 137 | # Comment next line if keeping position of elements in Navigation Editor is relevant for you 138 | .idea/navEditor.xml 139 | 140 | # Keystore files 141 | # Uncomment the following lines if you do not want to check your keystore files in. 142 | #*.jks 143 | #*.keystore 144 | 145 | # External native build folder generated in Android Studio 2.2 and later 146 | .externalNativeBuild 147 | .cxx/ 148 | 149 | # Google Services (e.g. APIs or Firebase) 150 | # google-services.json 151 | 152 | # Freeline 153 | freeline.py 154 | freeline/ 155 | freeline_project_description.json 156 | 157 | # fastlane 158 | fastlane/report.xml 159 | fastlane/Preview.html 160 | fastlane/screenshots 161 | fastlane/test_output 162 | fastlane/readme.md 163 | 164 | # Version control 165 | vcs.xml 166 | 167 | # lint 168 | lint/intermediates/ 169 | lint/generated/ 170 | lint/outputs/ 171 | lint/tmp/ 172 | # lint/reports/ 173 | 174 | /.idea/ 175 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright 2020 Afra55 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 2 | ![speedometer_2](https://raw.githubusercontent.com/Afra55/Speedometer/master/speedometer_banner.jpeg) 3 | 4 | [![license](https://raw.githubusercontent.com/Afra55/Speedometer/master/license.svg)](https://github.com/Afra55/Speedometer/blob/master/LICENSE) 5 | 6 | [TOC] 7 | 8 | 9 | 10 | ## Speedometer 11 | 速度表盘 For Android 12 | 13 | ## 参数说明 14 | 15 | | 参数 | 说明 | 16 | | ---- | ---- | 17 | | meterDividerAreaNumber | 表盘平均划分区域数量 | 18 | | meterBg | 表盘背景 | 19 | | meterMaskBg | 表盘遮照图 | 20 | | meterPointer | 表盘指针图, 指针图要垂直向下　 | 21 | | meterBottomEmptyAngle | 表盘底部0刻度与最大刻度的夹角， 比如 45度 | 22 | | meterNumberMargin | 表盘刻度距离边距的距离 | 23 | | meterNumberTextSize | 表盘刻度数字文字大小 | 24 | | meterNumberTextColor | 表盘刻度数字颜色 | 25 | | meterNumberSelectedTextColor | 指针划过区域的表盘刻度数字颜色 | 26 | | meterNumberLimitTextColor | 指针划过区域的超过限速数字的表盘刻度数字颜色 | 27 | | meterNumberFontAssetPath | 表盘刻度数字字体，asset文件夹路径，比如：`font/DIN_Condensed_Bold.ttf` | 28 | | meterCenterFontAssetPath | 表盘中心数字字体 | 29 | | meterCenterNumberTextSize | 表盘中心数字文字大小 | 30 | | meterCenterDescTextSize | 表盘中心描述文字大小 | 31 | | meterCenterTextColor | 表盘中心数字文字颜色 | 32 | | meterCenterDescTextColor | 表盘中心描述文字颜色 | 33 | | meterCenterDesc | 表盘中心描述字符串 | 34 | | meterCenterIc | 表盘中心文字的背景图　 | 35 | | meterType | 表盘类型，针对特殊表盘，默认0；1：只有指针指向的刻度变颜色，中间数字在描述下面；2： 隐藏指针，隐藏刻度, 背景和蒙板图片都绘制到 mask 上 | 36 | | meterRotateX | 表盘绕x轴旋转的角度 | 37 | | meterTranslateZ | 表盘z轴移动的距离 | 38 | | meterTranslateY | 表盘Y轴移动的距离 | 39 | | meterHideCenterNumber | 是否隐藏中心数字　 | 40 | | meterHideDividerNumber | 是否隐藏刻度数字　 | 41 | 42 | ## 原理图 43 | ![原理图](https://raw.githubusercontent.com/Afra55/Speedometer/master/schematic_diagram.png) 44 | 45 | 46 | ## 效果展示 47 | 48 | ### 表盘 1 49 | ``` 50 | 70 | 71 | ``` 72 | 73 | ![speedometer_1](https://raw.githubusercontent.com/Afra55/Speedometer/master/gif/speedometer_1.gif) 74 | 75 | ### 表盘 2 76 | 77 | ![speedometer_2](https://raw.githubusercontent.com/Afra55/Speedometer/master/gif/speedometer_2.gif) 78 | 79 | ### 表盘 3 80 | 81 | ![speedometer_3](https://raw.githubusercontent.com/Afra55/Speedometer/master/gif/speedometer_3.gif) 82 | 83 | ### 表盘 4 84 | 85 | ![speedometer_4](https://raw.githubusercontent.com/Afra55/Speedometer/master/gif/speedometer_4.gif) 86 | 87 | ### 表盘 5 88 | ![speedometer_5](https://raw.githubusercontent.com/Afra55/Speedometer/master/gif/speedometer_5.gif) 89 | 90 | ## 基础知识 91 | 92 | ### xfermode 93 | 用来进行图像混合处理。一共有18种混合模式。[官方文档](https://developer.android.com/reference/android/graphics/PorterDuff.Mode) 94 | ``` 95 | Paint paint = new Paint(); 96 | // DST 图 97 | canvas.drawBitmap(destinationImage, 0, 0, paint); 98 | 99 | PorterDuff.Mode mode = // choose a mode 100 | paint.setXfermode(new PorterDuffXfermode(mode)); 101 | 102 | // SRC 图 103 | canvas.drawBitmap(sourceImage, 0, 0, paint); 104 | ``` 105 | ![xfermode](https://raw.githubusercontent.com/Afra55/Speedometer/master/doc/picture/xfermode.png) 106 | 107 | ### 测量文字大小 108 | ![font_size](https://raw.githubusercontent.com/Afra55/Speedometer/master/doc/picture/font.png) 109 | 获取文字的内容高度，这个高度是文字绘制的最高点到最低点的距离： 110 | ``` 111 | fun TextPaint.getTextBound(str: String): Rect { 112 | val rect = Rect() 113 | getTextBounds(str, 0, str.length, rect) 114 | return rect 115 | } 116 | 117 | fun TextPaint.getCapHeight(): Int { 118 | // 获得0-9数字内容的高度 119 | return getTextBound("1234567890").height() 120 | } 121 | ``` 122 | ### dp2px 123 | 124 | ``` 125 | fun Resources.dp2Px(dip: Float): Float { 126 | return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip, this.displayMetrics) 127 | } 128 | ``` 129 | 130 | ### 正方形 view 131 | ``` 132 | class SquareFrameLayout : FrameLayout { 133 | 134 | constructor(context: Context) : super(context) { 135 | init(null, 0) 136 | } 137 | 138 | constructor(context: Context, attrs: AttributeSet) : super(context, attrs) { 139 | init(attrs, 0) 140 | } 141 | 142 | constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super( 143 | context, 144 | attrs, 145 | defStyle 146 | ) { 147 | init(attrs, defStyle) 148 | } 149 | 150 | fun init(attrs: AttributeSet?, defStyle: Int) { 151 | 152 | } 153 | 154 | override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) { 155 | val widthMode = MeasureSpec.getMode(widthMeasureSpec) 156 | val heightMode = MeasureSpec.getMode(heightMeasureSpec) 157 | 158 | var width = MeasureSpec.getSize(widthMeasureSpec) 159 | 160 | if (heightMode == MeasureSpec.AT_MOST || heightMode == MeasureSpec.EXACTLY) { 161 | val height = MeasureSpec.getSize(heightMeasureSpec) 162 | // 如果高是 match_parent 或者指定了特定值, 则取宽高较小的值为整个view的宽高 163 | width = Math.min(width, height) 164 | } 165 | 166 | setMeasuredDimension(width, width) 167 | } 168 | } 169 | ``` 170 | 171 | ## license 172 | Speedometer is available under the Apache-2.0 license. See the LICENSE file for more info. 173 | ``` 174 | Copyright 2020 Afra55 175 | 176 | Licensed under the Apache License, Version 2.0 (the "License"); 177 | you may not use this file except in compliance with the License. 178 | You may obtain a copy of the License at 179 | 180 | http://www.apache.org/licenses/LICENSE-2.0 181 | 182 | Unless required by applicable law or agreed to in writing, software 183 | distributed under the License is distributed on an "AS IS" BASIS, 184 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 185 | See the License for the specific language governing permissions and 186 | limitations under the License. 187 | 188 | ``` -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | apply plugin: 'kotlin-android' 3 | apply plugin: 'kotlin-android-extensions' 4 | 5 | android { 6 | compileSdkVersion 29 7 | buildToolsVersion "29.0.3" 8 | compileOptions { 9 | sourceCompatibility JavaVersion.VERSION_1_8 10 | targetCompatibility JavaVersion.VERSION_1_8 11 | } 12 | kotlinOptions { 13 | jvmTarget = "1.8" 14 | } 15 | defaultConfig { 16 | applicationId "com.afra55.speedometer" 17 | minSdkVersion 21 18 | targetSdkVersion 29 19 | versionCode 1 20 | versionName "1.0" 21 | 22 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 23 | } 24 | 25 | buildTypes { 26 | release { 27 | minifyEnabled false 28 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 29 | } 30 | } 31 | } 32 | 33 | dependencies { 34 | implementation fileTree(dir: "libs", include: ["*.jar"]) 35 | implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" 36 | implementation 'androidx.core:core-ktx:1.3.1' 37 | implementation 'androidx.appcompat:appcompat:1.2.0' 38 | implementation 'androidx.constraintlayout:constraintlayout:2.0.0' 39 | implementation project(path: ':speedometer') 40 | testImplementation 'junit:junit:4.12' 41 | androidTestImplementation 'androidx.test.ext:junit:1.1.1' 42 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' 43 | implementation 'androidx.viewpager2:viewpager2:1.0.0' 44 | 45 | } -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile -------------------------------------------------------------------------------- /app/src/androidTest/java/com/afra55/speedometer/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import androidx.test.platform.app.InstrumentationRegistry 4 | import androidx.test.ext.junit.runners.AndroidJUnit4 5 | 6 | import org.junit.Test 7 | import org.junit.runner.RunWith 8 | 9 | import org.junit.Assert.* 10 | 11 | /** 12 | * Instrumented test, which will execute on an Android device. 13 | * 14 | * See [testing documentation](http://d.android.com/tools/testing). 15 | */ 16 | @RunWith(AndroidJUnit4::class) 17 | class ExampleInstrumentedTest { 18 | @Test 19 | fun useAppContext() { 20 | // Context of the app under test. 21 | val appContext = InstrumentationRegistry.getInstrumentation().targetContext 22 | assertEquals("com.afra55.speedometer", appContext.packageName) 23 | } 24 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 6 | 7 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | -------------------------------------------------------------------------------- /app/src/main/java/com/afra55/speedometer/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import androidx.appcompat.app.AppCompatActivity 4 | import android.os.Bundle 5 | import androidx.fragment.app.Fragment 6 | import androidx.fragment.app.FragmentActivity 7 | import androidx.viewpager2.adapter.FragmentStateAdapter 8 | import kotlinx.android.synthetic.main.activity_main.* 9 | 10 | class MainActivity : AppCompatActivity() { 11 | override fun onCreate(savedInstanceState: Bundle?) { 12 | super.onCreate(savedInstanceState) 13 | setContentView(R.layout.activity_main) 14 | 15 | val speedometerAdapter = SpeedometerAdapter(this) 16 | speedometer_vp.adapter = speedometerAdapter 17 | speedometer_vp.offscreenPageLimit = speedometerAdapter.itemCount 18 | speedometer_vp_indicator.attach(speedometer_vp) 19 | } 20 | } 21 | 22 | 23 | class SpeedometerAdapter(activity: FragmentActivity) : FragmentStateAdapter(activity) { 24 | 25 | val itemList by lazy { 26 | val list = mutableListOf() 27 | list.add(R.layout.view_speedometer_1) 28 | list.add(R.layout.view_speedometer_2) 29 | list.add(R.layout.view_speedometer_3) 30 | list.add(R.layout.view_speedometer_4) 31 | list.add(R.layout.view_speedometer_5) 32 | list 33 | } 34 | override fun getItemCount(): Int { 35 | return itemList.size 36 | } 37 | override fun createFragment(position: Int): Fragment { 38 | return SpeedometerDialogFragment(itemList[position]) 39 | } 40 | } -------------------------------------------------------------------------------- /app/src/main/java/com/afra55/speedometer/SpeedometerDialogFragment.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import android.os.Bundle 4 | import android.os.Handler 5 | import android.os.Message 6 | import android.view.LayoutInflater 7 | import android.view.View 8 | import android.view.ViewGroup 9 | import androidx.core.util.toRange 10 | import androidx.fragment.app.Fragment 11 | import kotlinx.android.synthetic.main.fragment_speedometer_dialog.* 12 | 13 | /** 14 | * @author Afra55 15 | * @date 2020/8/28 16 | * A smile is the best business card. 17 | * 没有成绩，连呼吸都是错的。 18 | */ 19 | class SpeedometerDialogFragment(val speedometerDialogResId: Int) : Fragment() { 20 | 21 | override fun onCreateView( 22 | inflater: LayoutInflater, 23 | container: ViewGroup?, 24 | savedInstanceState: Bundle? 25 | ): View? { 26 | return inflater.inflate(R.layout.fragment_speedometer_dialog, container, false) 27 | } 28 | 29 | val testHandler:Handler by lazy { 30 | Handler(Handler.Callback { 31 | if (isResume) { 32 | mySpeedometerDialog?.setCurrentNumber((0..180).random().toFloat()) 33 | } 34 | testHandler.sendEmptyMessageDelayed(0, 500) 35 | false 36 | 37 | }) 38 | } 39 | 40 | 41 | var mySpeedometerDialog: SpeedometerDialog? = null 42 | var isResume = false 43 | override fun onViewCreated(view: View, savedInstanceState: Bundle?) { 44 | super.onViewCreated(view, savedInstanceState) 45 | val view = LayoutInflater.from(context).inflate(speedometerDialogResId, null, false) 46 | val test_speedometer: View? = view.findViewById(R.id.test_speedometer) 47 | if (test_speedometer is SpeedometerDialog) { 48 | mySpeedometerDialog = test_speedometer 49 | item_root.addView(view, 0) 50 | mySpeedometerDialog!!.setLimitNumber(120) 51 | mySpeedometerDialog!!.setMaxNumber(180F) 52 | 53 | testHandler.sendEmptyMessage(0) 54 | } 55 | 56 | } 57 | 58 | override fun onResume() { 59 | super.onResume() 60 | isResume = true 61 | } 62 | 63 | override fun onPause() { 64 | super.onPause() 65 | isResume = false 66 | } 67 | 68 | override fun onDetach() { 69 | testHandler.removeMessages(0) 70 | super.onDetach() 71 | } 72 | } 73 | 74 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 9 | 10 | 11 | 18 | 22 | 26 | 27 | 28 | 29 | 36 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-xxhdpi/dialog_bg_1.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Afra55/Android-Speedometer/8a8e9e0f4fd307f80a4032044e453e36d5b41a67/app/src/main/res/drawable-xxhdpi/dialog_bg_1.png -------------------------------------------------------------------------------- /app/src/main/res/drawable-xxhdpi/dialog_bg_2.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Afra55/Android-Speedometer/8a8e9e0f4fd307f80a4032044e453e36d5b41a67/app/src/main/res/drawable-xxhdpi/dialog_bg_2.png -------------------------------------------------------------------------------- /app/src/main/res/drawable-xxhdpi/dialog_bg_3.png: -------------------------------------------------------------------------------- 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133 | 139 | 145 | 151 | 157 | 163 | 169 | 175 | 181 | 187 | 193 | 199 | 205 | 206 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 11 | 12 | 16 | 17 | 23 | 24 | -------------------------------------------------------------------------------- /app/src/main/res/layout/fragment_speedometer_dialog.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /app/src/main/res/layout/view_speedometer_1.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 28 | 29 | 30 | -------------------------------------------------------------------------------- /app/src/main/res/layout/view_speedometer_2.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 23 | 24 | 25 | -------------------------------------------------------------------------------- /app/src/main/res/layout/view_speedometer_3.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 28 | 29 | 30 | -------------------------------------------------------------------------------- /app/src/main/res/layout/view_speedometer_4.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 31 | 32 | 33 | -------------------------------------------------------------------------------- /app/src/main/res/layout/view_speedometer_5.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml: 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-------------------------------------------------------------------------------- /app/src/test/java/com/afra55/speedometer/ExampleUnitTest.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import org.junit.Test 4 | 5 | import org.junit.Assert.* 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * See [testing documentation](http://d.android.com/tools/testing). 11 | */ 12 | class ExampleUnitTest { 13 | @Test 14 | fun addition_isCorrect() { 15 | assertEquals(4, 2 + 2) 16 | } 17 | } -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | buildscript { 3 | ext.kotlin_version = "1.3.72" 4 | repositories { 5 | google() 6 | jcenter() 7 | } 8 | dependencies { 9 | classpath "com.android.tools.build:gradle:3.6.3" 10 | classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" 11 | 12 | // NOTE: Do not place your application dependencies here; they belong 13 | // in the individual module build.gradle files 14 | } 15 | } 16 | 17 | allprojects { 18 | repositories { 19 | google() 20 | jcenter() 21 | } 22 | } 23 | 24 | task clean(type: Delete) { 25 | delete rootProject.buildDir 26 | } -------------------------------------------------------------------------------- /doc/picture/font.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Afra55/Android-Speedometer/8a8e9e0f4fd307f80a4032044e453e36d5b41a67/doc/picture/font.png -------------------------------------------------------------------------------- /doc/picture/xfermode.png: -------------------------------------------------------------------------------- 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3 | # Gradle settings configured through the IDE *will override* 4 | # any settings specified in this file. 5 | # For more details on how to configure your build environment visit 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html 7 | # Specifies the JVM arguments used for the daemon process. 8 | # The setting is particularly useful for tweaking memory settings. 9 | org.gradle.jvmargs=-Xmx2048m 10 | # When configured, Gradle will run in incubating parallel mode. 11 | # This option should only be used with decoupled projects. More details, visit 12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 13 | # org.gradle.parallel=true 14 | # AndroidX package structure to make it clearer which packages are bundled with the 15 | # Android operating system, and which are packaged with your app"s APK 16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn 17 | android.useAndroidX=true 18 | # Automatically convert third-party libraries to use AndroidX 19 | android.enableJetifier=true 20 | # Kotlin code style for this project: "official" or "obsolete": 21 | kotlin.code.style=official -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Afra55/Android-Speedometer/8a8e9e0f4fd307f80a4032044e453e36d5b41a67/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Tue Aug 11 16:43:11 CST 2020 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /license.svg: -------------------------------------------------------------------------------- 1 | license: Apache-2.0licenseApache-2.0 -------------------------------------------------------------------------------- /schematic_diagram.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Afra55/Android-Speedometer/8a8e9e0f4fd307f80a4032044e453e36d5b41a67/schematic_diagram.png -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':speedometer' 2 | include ':app' 3 | rootProject.name = "Speedometer" -------------------------------------------------------------------------------- /speedometer/.gitignore: -------------------------------------------------------------------------------- 1 | /build -------------------------------------------------------------------------------- /speedometer/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | apply plugin: 'kotlin-android' 3 | apply plugin: 'kotlin-android-extensions' 4 | 5 | android { 6 | compileSdkVersion 29 7 | buildToolsVersion "29.0.3" 8 | compileOptions { 9 | sourceCompatibility JavaVersion.VERSION_1_8 10 | targetCompatibility JavaVersion.VERSION_1_8 11 | } 12 | kotlinOptions { 13 | jvmTarget = "1.8" 14 | } 15 | defaultConfig { 16 | minSdkVersion 21 17 | targetSdkVersion 29 18 | versionCode 1 19 | versionName "1.0" 20 | 21 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 22 | consumerProguardFiles "consumer-rules.pro" 23 | } 24 | 25 | buildTypes { 26 | release { 27 | minifyEnabled false 28 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 29 | } 30 | } 31 | } 32 | 33 | dependencies { 34 | implementation fileTree(dir: "libs", include: ["*.jar"]) 35 | implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" 36 | implementation 'androidx.core:core-ktx:1.3.1' 37 | implementation 'androidx.appcompat:appcompat:1.2.0' 38 | implementation 'androidx.viewpager2:viewpager2:1.0.0' 39 | testImplementation 'junit:junit:4.12' 40 | androidTestImplementation 'androidx.test.ext:junit:1.1.1' 41 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' 42 | 43 | } -------------------------------------------------------------------------------- /speedometer/consumer-rules.pro: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Afra55/Android-Speedometer/8a8e9e0f4fd307f80a4032044e453e36d5b41a67/speedometer/consumer-rules.pro -------------------------------------------------------------------------------- /speedometer/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile -------------------------------------------------------------------------------- /speedometer/src/androidTest/java/com/afra55/speedometer/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import androidx.test.platform.app.InstrumentationRegistry 4 | import androidx.test.ext.junit.runners.AndroidJUnit4 5 | 6 | import org.junit.Test 7 | import org.junit.runner.RunWith 8 | 9 | import org.junit.Assert.* 10 | 11 | /** 12 | * Instrumented test, which will execute on an Android device. 13 | * 14 | * See [testing documentation](http://d.android.com/tools/testing). 15 | */ 16 | @RunWith(AndroidJUnit4::class) 17 | class ExampleInstrumentedTest { 18 | @Test 19 | fun useAppContext() { 20 | // Context of the app under test. 21 | val appContext = InstrumentationRegistry.getInstrumentation().targetContext 22 | assertEquals("com.afra55.speedometer.test", appContext.packageName) 23 | } 24 | } -------------------------------------------------------------------------------- /speedometer/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | -------------------------------------------------------------------------------- /speedometer/src/main/java/com/afra55/speedometer/SpeedometerDialog.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import android.animation.ValueAnimator 4 | import android.animation.ValueAnimator.INFINITE 5 | import android.animation.ValueAnimator.REVERSE 6 | import android.content.Context 7 | import android.content.res.Resources 8 | import android.graphics.* 9 | import android.graphics.drawable.Drawable 10 | import android.text.TextPaint 11 | import android.util.AttributeSet 12 | import android.util.TypedValue 13 | import android.view.View 14 | import android.view.animation.AccelerateDecelerateInterpolator 15 | import androidx.core.graphics.drawable.toBitmap 16 | import androidx.core.text.isDigitsOnly 17 | import kotlin.math.abs 18 | import kotlin.math.cos 19 | import kotlin.math.sin 20 | 21 | class SpeedometerDialog : View { 22 | 23 | /** 24 | * 刻度数字颜色 25 | */ 26 | private var meterNumberTextColor: Int = Color.RED 27 | 28 | /** 29 | * 中心速度数字颜色 30 | */ 31 | private var meterCenterTextColor: Int = Color.RED 32 | 33 | /** 34 | * 中心描述文字颜色 35 | */ 36 | private var meterCenterDescTextColor: Int = Color.RED 37 | 38 | /** 39 | * 指针转过区域的刻度颜色 40 | */ 41 | private var meterNumberSelectedTextColor: Int = Color.RED 42 | 43 | /** 44 | * 超过限速值的刻度颜色 45 | */ 46 | private var meterNumberLimitTextColor: Int = Color.RED 47 | 48 | /** 49 | * 刻度字体大小 50 | */ 51 | private var meterNumberTextSize: Float = 9f 52 | 53 | /** 54 | * 刻度数字距离边界的距离 55 | */ 56 | private var meterNumberMargin: Int = 0 57 | 58 | /** 59 | * 当前速度，指针指向的数字 60 | */ 61 | private var currentNumber = 0F 62 | 63 | /** 64 | * 绕 X 轴旋转 65 | */ 66 | private var meterRotateX = 0F 67 | 68 | /** 69 | * Z轴平移 70 | */ 71 | private var meterTranslateZ = 0 72 | 73 | /** 74 | * Y轴平移 75 | */ 76 | private var meterTranslateY = 0 77 | 78 | /** 79 | * 0 km/s 80 | * 1 公里/s 81 | */ 82 | var meterMeasureType = 0 83 | 84 | /** 85 | * 是否隐藏中心数字 86 | */ 87 | var meterHideCenterNumber = false 88 | 89 | /** 90 | * 是否隐藏刻度 91 | */ 92 | var meterHideDividerNumber = false 93 | 94 | /** 95 | * 表盘特殊类型 96 | * 0: 默认　 97 | * 1：只有指针指向的刻度变颜色，中间数字在描述下面 98 | * 2： 隐藏指针，隐藏刻度, 背景和蒙板图片都绘制到 mask 上 99 | */ 100 | private var meterType = 0 101 | 102 | /** 103 | * 刻度最大值 104 | * 0 - maxNumber 105 | */ 106 | private var maxNumber = 180F 107 | 108 | /** 109 | * 速度表底部 0 和 最大刻度值之间的夹角 110 | */ 111 | private var bottomEmptyAngle = 90 112 | 113 | /** 114 | * 测试用虚线，只在编辑模式展示 115 | */ 116 | private var dashCirclePaint: Paint? = null 117 | 118 | /** 119 | * 起始角度，刻度0与垂直线的夹角 120 | */ 121 | private var startAngle = bottomEmptyAngle / 2F 122 | 123 | /** 124 | * 限速值，如果大于这个值，表盘开始闪烁 125 | */ 126 | private var limitNumber = 120 127 | 128 | /** 129 | * 动画，指针旋转动画 130 | */ 131 | var valueAnimator: ValueAnimator? = null 132 | 133 | /** 134 | * 更改透明度动画 135 | */ 136 | var alphaAnimator: ValueAnimator? = null 137 | 138 | private var meterNumberTextPaint: TextPaint? = null 139 | private var meterNumberSelectedTextPaint: TextPaint? = null 140 | 141 | 142 | /** 143 | * 中心数字文字 TextPaint 144 | */ 145 | private var meterCenterNumberTextPaint: TextPaint? = null 146 | 147 | /** 148 | * 中心文字Desc TextPaint 149 | */ 150 | private var meterCenterDescTextPaint: TextPaint? = null 151 | 152 | /** 153 | * 中心描述文字 154 | */ 155 | var meterCenterDesc: String? = null 156 | 157 | /** 158 | * 中心数字文字高度　 159 | */ 160 | var centerNumberTextHeight: Float = 0F 161 | 162 | /** 163 | * 中心文字描述高度　 164 | */ 165 | var centerDescTextHeight: Float = 0F 166 | 167 | /** 168 | * 中心描述文字大小 169 | */ 170 | var meterCenterDescTextSize: Float = 9F 171 | 172 | /** 173 | * 中心数字文字大小 174 | */ 175 | var meterCenterNumberTextSize: Float = 9F 176 | 177 | /** 178 | * 中心文字字体 179 | */ 180 | var meterCenterFontAssetPath: String? = null 181 | 182 | /** 183 | * 数字文字字体 184 | */ 185 | var meterNumberFontAssetPath: String? = null 186 | 187 | 188 | /** 189 | * 表盘背景 190 | */ 191 | var meterBg: Drawable? = null 192 | 193 | /** 194 | * 表盘MaskBg 195 | */ 196 | var meterMaskBg: Drawable? = null 197 | 198 | /** 199 | * 表盘中心覆盖的 icon 200 | */ 201 | var meterCenterIcon: Drawable? = null 202 | 203 | /** 204 | * mask point 205 | */ 206 | var translateMaskPoint: Paint? = null 207 | 208 | /** 209 | * 表盘指针 210 | */ 211 | var meterPointer: Drawable? = null 212 | 213 | /** 214 | * 表盘等分区域数量 215 | */ 216 | private var dividerAreaNumber = 9 217 | 218 | /** 219 | * 表盘等分刻度 220 | */ 221 | var dividerNumberList = mutableListOf() 222 | 223 | /** 224 | * 需要回收的 bitmap　 225 | */ 226 | var needRecyclerBitmapList = mutableListOf() 227 | 228 | 229 | fun setLimitNumber(number: Int) { 230 | val tempNumber = when { 231 | // number > maxNumber -> { 232 | // maxNumber.toInt() 233 | // } 234 | number < 0 -> { 235 | 0 236 | } 237 | else -> { 238 | number 239 | } 240 | } 241 | limitNumber = tempNumber 242 | 243 | if (translateMaskPoint != null && width > 0 && height > 0) { 244 | drawMask(width, height) 245 | } 246 | } 247 | 248 | fun getLimitNumber(): Int { 249 | return limitNumber 250 | } 251 | 252 | fun setMaxNumber(maxNumber: Float) { 253 | this.maxNumber = maxNumber 254 | invalidateTextPaintAndMeasurements() 255 | if (translateMaskPoint != null && width > 0 && height > 0) { 256 | drawMask(width, height) 257 | } 258 | invalidate() 259 | } 260 | 261 | fun setCenterDesc(str: String?) { 262 | meterCenterDesc = str 263 | if (width > 0 && height > 0) { 264 | invalidate() 265 | } 266 | } 267 | 268 | fun setCurrentNumber(currentNumber: Float) { 269 | if (currentNumber == this.currentNumber) { 270 | return 271 | } 272 | 273 | val tempNumber = when { 274 | // currentNumber > maxNumber -> { 275 | // maxNumber 276 | // } 277 | currentNumber < 0 -> { 278 | 0F 279 | } 280 | else -> { 281 | currentNumber 282 | } 283 | } 284 | resetAnimator(this.currentNumber, tempNumber) 285 | } 286 | 287 | fun getCurrentNumber(): Float { 288 | return currentNumber 289 | } 290 | 291 | /** 292 | * 速度数字动画 293 | */ 294 | fun resetAnimator(oldNumber: Float, nextNumber: Float) { 295 | valueAnimator?.cancel() 296 | // try { 297 | // ValueAnimator::class.java.getMethod("setDurationScale", Float::class.javaPrimitiveType).invoke(null, 1f) 298 | // } catch (e: Exception) { 299 | // } 300 | valueAnimator = ValueAnimator.ofFloat(oldNumber, nextNumber) 301 | valueAnimator?.duration = 500L 302 | valueAnimator?.interpolator = AccelerateDecelerateInterpolator() 303 | valueAnimator?.addUpdateListener { 304 | try { 305 | val v = it.animatedValue as Float 306 | currentNumber = v 307 | postInvalidate() 308 | if (limitNumber > 0 && currentNumber > limitNumber) { 309 | if (alphaAnimator == null || !alphaAnimator!!.isRunning) { 310 | alphaAnimator() 311 | } 312 | } else { 313 | if (alphaAnimator?.isRunning == true) { 314 | alphaAnimator?.removeAllUpdateListeners() 315 | alphaAnimator?.pause() 316 | alphaAnimator?.cancel() 317 | alpha = 1F 318 | } 319 | } 320 | } catch (e: Exception) { 321 | e.printStackTrace() 322 | } 323 | } 324 | valueAnimator?.start() 325 | } 326 | 327 | /** 328 | * 透明度动画 329 | */ 330 | fun alphaAnimator() { 331 | 332 | alphaAnimator?.pause() 333 | alphaAnimator?.cancel() 334 | alphaAnimator = ValueAnimator.ofFloat(1F, 0.7F) 335 | alphaAnimator?.repeatCount = INFINITE 336 | alphaAnimator?.repeatMode = REVERSE 337 | alphaAnimator?.duration = 500L 338 | alphaAnimator?.addUpdateListener { 339 | try { 340 | alpha = it.animatedValue as Float 341 | } catch (e: Exception) { 342 | } 343 | } 344 | alphaAnimator?.start() 345 | } 346 | 347 | fun setDividerAreaNumber(areaNumber: Int) { 348 | if (areaNumber > 0) { 349 | dividerAreaNumber = areaNumber 350 | invalidateTextPaintAndMeasurements() 351 | invalidate() 352 | } 353 | } 354 | 355 | constructor(context: Context) : super(context) { 356 | init(null, 0) 357 | } 358 | 359 | constructor(context: Context, attrs: AttributeSet) : super(context, attrs) { 360 | init(attrs, 0) 361 | } 362 | 363 | constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super( 364 | context, 365 | attrs, 366 | defStyle 367 | ) { 368 | init(attrs, defStyle) 369 | } 370 | 371 | private fun init(attrs: AttributeSet?, defStyle: Int) { 372 | keepScreenOn = true 373 | // Load attributes 374 | val a = context.obtainStyledAttributes( 375 | attrs, R.styleable.SpeedometerDialog, defStyle, 0 376 | ) 377 | 378 | meterNumberTextColor = a.getColor( 379 | R.styleable.SpeedometerDialog_meterNumberTextColor, 380 | meterNumberTextColor 381 | ) 382 | meterCenterTextColor = a.getColor( 383 | R.styleable.SpeedometerDialog_meterCenterTextColor, 384 | meterCenterTextColor 385 | ) 386 | meterCenterDescTextColor = a.getColor( 387 | R.styleable.SpeedometerDialog_meterCenterDescTextColor, 388 | meterCenterTextColor 389 | ) 390 | meterHideCenterNumber = a.getBoolean( 391 | R.styleable.SpeedometerDialog_meterHideCenterNumber, 392 | meterHideCenterNumber 393 | ) 394 | meterHideDividerNumber = a.getBoolean( 395 | R.styleable.SpeedometerDialog_meterHideDividerNumber, 396 | meterHideDividerNumber 397 | ) 398 | meterNumberSelectedTextColor = a.getColor( 399 | R.styleable.SpeedometerDialog_meterNumberSelectedTextColor, 400 | meterNumberSelectedTextColor 401 | ) 402 | meterNumberLimitTextColor = a.getColor( 403 | R.styleable.SpeedometerDialog_meterNumberLimitTextColor, 404 | meterNumberLimitTextColor 405 | ) 406 | bottomEmptyAngle = a.getInt( 407 | R.styleable.SpeedometerDialog_meterBottomEmptyAngle, 408 | bottomEmptyAngle 409 | ) 410 | meterType = a.getInt( 411 | R.styleable.SpeedometerDialog_meterType, 412 | meterType 413 | ) 414 | meterRotateX = a.getFloat( 415 | R.styleable.SpeedometerDialog_meterRotateX, 416 | meterRotateX 417 | ) 418 | meterTranslateZ = a.getDimensionPixelSize( 419 | R.styleable.SpeedometerDialog_meterTranslateZ, 420 | meterTranslateZ 421 | ) 422 | meterTranslateY = a.getDimensionPixelSize( 423 | R.styleable.SpeedometerDialog_meterTranslateY, 424 | meterTranslateY 425 | ) 426 | dividerAreaNumber = 427 | a.getInt(R.styleable.SpeedometerDialog_meterDividerAreaNumber, dividerAreaNumber) 428 | // Use getDimensionPixelSize or getDimensionPixelOffset when dealing with 429 | // values that should fall on pixel boundaries. 430 | meterNumberTextSize = a.getDimension( 431 | R.styleable.SpeedometerDialog_meterNumberTextSize, 432 | meterNumberTextSize 433 | ) // Use getDimensionPixelSize or getDimensionPixelOffset when dealing with 434 | // values that should fall on pixel boundaries. 435 | meterCenterDescTextSize = a.getDimension( 436 | R.styleable.SpeedometerDialog_meterCenterDescTextSize, 437 | meterCenterDescTextSize 438 | ) 439 | meterCenterNumberTextSize = a.getDimension( 440 | R.styleable.SpeedometerDialog_meterCenterNumberTextSize, 441 | meterCenterNumberTextSize 442 | ) 443 | meterCenterFontAssetPath = 444 | a.getString(R.styleable.SpeedometerDialog_meterCenterFontAssetPath) 445 | meterNumberFontAssetPath = 446 | a.getString(R.styleable.SpeedometerDialog_meterNumberFontAssetPath) 447 | meterCenterDesc = a.getString(R.styleable.SpeedometerDialog_meterCenterDesc) 448 | // Use getDimensionPixelSize or getDimensionPixelOffset when dealing with 449 | // values that should fall on pixel boundaries. 450 | meterNumberMargin = a.getDimensionPixelSize( 451 | R.styleable.SpeedometerDialog_meterNumberMargin, 452 | meterNumberMargin 453 | ) 454 | 455 | if (a.hasValue(R.styleable.SpeedometerDialog_meterBg)) { 456 | meterBg = a.getDrawable( 457 | R.styleable.SpeedometerDialog_meterBg 458 | ) 459 | meterBg?.callback = this 460 | } 461 | 462 | if (a.hasValue(R.styleable.SpeedometerDialog_meterMaskBg)) { 463 | meterMaskBg = a.getDrawable( 464 | R.styleable.SpeedometerDialog_meterMaskBg 465 | ) 466 | meterMaskBg?.callback = this 467 | } 468 | if (a.hasValue(R.styleable.SpeedometerDialog_meterCenterIc)) { 469 | meterCenterIcon = a.getDrawable( 470 | R.styleable.SpeedometerDialog_meterCenterIc 471 | ) 472 | meterCenterIcon?.callback = this 473 | } 474 | if (a.hasValue(R.styleable.SpeedometerDialog_meterPointer)) { 475 | meterPointer = a.getDrawable( 476 | R.styleable.SpeedometerDialog_meterPointer 477 | ) 478 | meterPointer?.callback = this 479 | } 480 | 481 | a.recycle() 482 | 483 | startAngle = bottomEmptyAngle / 2F 484 | 485 | dashCirclePaint = Paint(Paint.ANTI_ALIAS_FLAG) 486 | dashCirclePaint!!.color = Color.GREEN 487 | dashCirclePaint!!.style = Paint.Style.STROKE 488 | dashCirclePaint!!.strokeWidth = dp2Px(2F) 489 | val dashWidth = dp2Px(2F) 490 | dashCirclePaint!!.pathEffect = DashPathEffect(floatArrayOf(dashWidth, dashWidth), 0F) 491 | // Set up a default TextPaint object 492 | meterNumberTextPaint = TextPaint().apply { 493 | flags = Paint.ANTI_ALIAS_FLAG 494 | textAlign = Paint.Align.LEFT 495 | } 496 | 497 | meterCenterNumberTextPaint = TextPaint().apply { 498 | flags = Paint.ANTI_ALIAS_FLAG 499 | textAlign = Paint.Align.CENTER 500 | } 501 | meterCenterDescTextPaint = TextPaint().apply { 502 | flags = Paint.ANTI_ALIAS_FLAG 503 | textAlign = Paint.Align.CENTER 504 | } 505 | meterNumberSelectedTextPaint = TextPaint().apply { 506 | flags = Paint.ANTI_ALIAS_FLAG 507 | textAlign = Paint.Align.LEFT 508 | } 509 | 510 | 511 | // Update TextPaint and text measurements from attributes 512 | invalidateTextPaintAndMeasurements() 513 | } 514 | 515 | override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) { 516 | super.onSizeChanged(w, h, oldw, oldh) 517 | if (w > 0 && h > 0) { 518 | drawMask(w, h) 519 | } 520 | } 521 | 522 | /** 523 | * 创建指针划过区域的遮照 524 | * 这里使用的是 xfermode 的 SRC_OVER 模式 525 | * PorterDuffXfermode(PorterDuff.Mode.SRC_OVER) 526 | */ 527 | private fun drawMask(w: Int, h: Int) { 528 | translateMaskPoint = Paint() 529 | translateMaskPoint?.apply { 530 | 531 | for (i in needRecyclerBitmapList) { 532 | i.recycle() 533 | } 534 | needRecyclerBitmapList.clear() 535 | 536 | flags = Paint.ANTI_ALIAS_FLAG 537 | 538 | var ca: Canvas? = null 539 | var bitmap: Bitmap? = null 540 | if (meterType == 2) { // meterType 如是是 2，表盘背景会通过指针扫过区域展示, 先绘制表盘背景到遮照上 541 | if (meterBg != null) { 542 | meterBg!!.setBounds( 543 | paddingLeft, paddingTop, 544 | paddingLeft + w, paddingTop + h 545 | ) 546 | bitmap = meterBg!!.toBitmap(w, h, Bitmap.Config.ARGB_8888) 547 | ca = Canvas(bitmap) 548 | needRecyclerBitmapList.add(bitmap) 549 | } 550 | } 551 | 552 | if (meterMaskBg != null) { 553 | // 绘制遮照图 554 | meterMaskBg!!.setBounds( 555 | paddingLeft, paddingTop, 556 | paddingLeft + w, paddingTop + h 557 | ) 558 | val bitmapMaskBg = meterMaskBg!!.toBitmap(w, h, Bitmap.Config.ARGB_8888) 559 | if (ca != null) { 560 | // 如果遮照已经绘制了表盘背景 561 | Paint(Paint.ANTI_ALIAS_FLAG).apply { 562 | 563 | shader = bitmapMaskBg.let { 564 | needRecyclerBitmapList.add(it) 565 | BitmapShader(it, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP) 566 | } 567 | 568 | // SRC_OVER 模式 569 | xfermode = PorterDuffXfermode(PorterDuff.Mode.SRC_OVER) 570 | 571 | // 对 limit number 的限制　 572 | var limitNumber1 = limitNumber 573 | if (limitNumber1 > maxNumber) { 574 | limitNumber1 = maxNumber.toInt() 575 | } 576 | // 绘制遮照图的范围，即表盘中心与大于限速刻度到最大刻度值的一个 arc 区域 577 | val fl = 578 | if (limitNumber1 > 0) startAngle + limitNumber1 / maxNumber * (360 - bottomEmptyAngle) else 360F 579 | ca?.drawArc( 580 | paddingLeft.toFloat(), 581 | paddingTop.toFloat(), 582 | (paddingLeft + w).toFloat(), 583 | (paddingTop + h).toFloat(), 584 | 90F, 585 | fl, 586 | true, 587 | this 588 | ) 589 | } 590 | 591 | } else { 592 | // 如果表盘没有绘制在遮照上，则遮照即是设置的 meterMaskBg 593 | bitmap = bitmapMaskBg 594 | } 595 | 596 | } else { 597 | // 如果没有设置遮照，则创建一个空白图 598 | if (ca == null) { 599 | bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888) 600 | } 601 | } 602 | 603 | 604 | if (ca == null) { 605 | ca = Canvas(bitmap!!) 606 | } 607 | if (meterNumberSelectedTextColor != meterNumberTextColor) { 608 | // 绘制指针划过区域的刻度数字 609 | drawNumber(w, w / 2F, h / 2F, meterNumberSelectedTextPaint!!, ca, true) 610 | } 611 | shader = bitmap?.let { 612 | needRecyclerBitmapList.add(it) 613 | BitmapShader(it, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP) 614 | } 615 | // 给遮照 Paint 设置 SRC_OVER xfermode 模式 616 | xfermode = PorterDuffXfermode(PorterDuff.Mode.SRC_OVER) 617 | } 618 | } 619 | 620 | override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) { 621 | 622 | // 这是个正方形的表盘 623 | super.onMeasure(widthMeasureSpec, widthMeasureSpec) 624 | 625 | } 626 | 627 | 628 | /** 629 | * 初始化文字相关的 TextPaint 630 | */ 631 | private fun invalidateTextPaintAndMeasurements() { 632 | meterNumberTextPaint?.let {// 刻度数字Paint 633 | it.textSize = meterNumberTextSize 634 | it.color = meterNumberTextColor 635 | 636 | if (!isInEditMode) { 637 | meterNumberFontAssetPath?.let { fontPath -> 638 | it.typeface = Typeface.createFromAsset(context.assets, fontPath) 639 | } 640 | } 641 | 642 | // 获取所有刻度数字 643 | dividerNumberList.clear() 644 | val oneAreaNumber = maxNumber / dividerAreaNumber 645 | // 拿到最宽的字符，数字画出来更好看一点 646 | var maxWidth = it.measureText((dividerAreaNumber * oneAreaNumber).toInt().toString()) 647 | for (i in 0..dividerAreaNumber) { 648 | val str = (i * oneAreaNumber).toInt().toString() 649 | val measureText = it.measureText(str) 650 | if (measureText > maxWidth) { 651 | maxWidth = measureText 652 | } 653 | val textWidth = maxWidth 654 | val textHeight = it.fontMetrics.bottom 655 | 656 | dividerNumberList.add(MeterNumber(str, textWidth, textHeight)) 657 | } 658 | } 659 | meterNumberSelectedTextPaint?.let { // 指针扫过的刻度数字Paint 660 | it.textSize = meterNumberTextSize 661 | it.color = meterNumberSelectedTextColor 662 | if (!isInEditMode) { 663 | meterNumberFontAssetPath?.let { fontPath -> 664 | it.typeface = Typeface.createFromAsset(context.assets, fontPath) 665 | } 666 | } 667 | } 668 | meterCenterNumberTextPaint?.let {// 中心速度数字Paint 669 | it.textSize = meterCenterNumberTextSize 670 | it.color = meterCenterTextColor 671 | if (!isInEditMode) { 672 | meterCenterFontAssetPath?.let { fontPath -> 673 | it.typeface = Typeface.createFromAsset(context.assets, fontPath) 674 | } 675 | } 676 | centerNumberTextHeight = it.getCapHeight().toFloat() 677 | } 678 | meterCenterDescTextPaint?.let {// 中心描述数字Paint 679 | it.textSize = meterCenterDescTextSize 680 | it.color = meterCenterDescTextColor 681 | if (!isInEditMode) { 682 | meterCenterFontAssetPath?.let { fontPath -> 683 | it.typeface = Typeface.createFromAsset(context.assets, fontPath) 684 | } 685 | } 686 | centerDescTextHeight = it.getCapHeight().toFloat() 687 | } 688 | } 689 | 690 | 691 | var camera: Camera? = null 692 | val cameraMatrix = Matrix() 693 | override fun onDraw(canvas: Canvas) { 694 | super.onDraw(canvas) 695 | 696 | try { 697 | 698 | canvas.save() 699 | val paddingLeft = paddingLeft 700 | val paddingTop = paddingTop 701 | val paddingRight = paddingRight 702 | val paddingBottom = paddingBottom 703 | 704 | val contentWidth = width - paddingLeft - paddingRight 705 | val contentHeight = height - paddingTop - paddingBottom 706 | 707 | val cx = paddingLeft + (contentWidth.toFloat()) / 2 708 | val cy = paddingTop + (contentHeight.toFloat()) / 2 709 | 710 | if (meterRotateX != 0F) { 711 | // 如果设置了旋转，先将画布旋转 712 | 713 | if (camera == null) { 714 | camera = Camera() 715 | } 716 | camera?.let { 717 | 718 | it.save() 719 | it.rotateX(meterRotateX); 720 | it.rotateY(0F); 721 | it.rotateZ(0F); // Rotate around Z access (similar to canvas.rotate) 722 | it.translate(0F, meterTranslateY.toFloat(), meterTranslateZ.toFloat()) 723 | 724 | 725 | it.getMatrix(cameraMatrix); 726 | 727 | cameraMatrix.preTranslate(-cx, -cy); 728 | 729 | cameraMatrix.postTranslate(cx, cy); 730 | it.restore(); 731 | 732 | canvas.concat(cameraMatrix); 733 | } 734 | } 735 | if (meterType != 2) { // 如果 meterType 是 2 则表盘背景不绘制在画布上，它在遮照层里面 736 | meterBg?.let { 737 | it.setBounds( 738 | paddingLeft, paddingTop, 739 | paddingLeft + contentWidth, paddingTop + contentHeight 740 | ) 741 | it.draw(canvas) 742 | } 743 | drawNumber(contentWidth, cx, cy, meterNumberTextPaint!!, canvas) 744 | } 745 | canvas.save() 746 | // 遮照层 start 747 | 748 | 749 | // 当前指针指向的角度 750 | val needDegreesBuyCurrentNumber = getNeedDegreesBuyCurrentNumber() 751 | translateMaskPoint?.let { 752 | if (meterType == 1) { // meterType 是1 则遮照的展示区域是指针的上下 15度 753 | canvas.drawArc( 754 | paddingLeft.toFloat(), 755 | paddingTop.toFloat(), 756 | (paddingLeft + contentWidth).toFloat(), 757 | (paddingTop + contentHeight).toFloat(), 758 | needDegreesBuyCurrentNumber + 90F - 15, 759 | 30F, 760 | true, 761 | it 762 | ) 763 | } else { 764 | // 默认情况下，遮照是从最底下绘制，顺时针到指针指向的角度 765 | canvas.drawArc( 766 | paddingLeft.toFloat(), 767 | paddingTop.toFloat(), 768 | (paddingLeft + contentWidth).toFloat(), 769 | (paddingTop + contentHeight).toFloat(), 770 | 90F, 771 | needDegreesBuyCurrentNumber, 772 | true, 773 | it 774 | ) 775 | } 776 | } 777 | 778 | // 遮照层 end 779 | canvas.restore() 780 | 781 | 782 | if (meterType != 2) { 783 | // 默认情况下， 绘制指针 784 | canvas.save() 785 | 786 | meterPointer?.let { 787 | it.setBounds( 788 | paddingLeft, paddingTop, 789 | paddingLeft + contentWidth, paddingTop + contentHeight 790 | ) 791 | canvas.rotate( 792 | needDegreesBuyCurrentNumber, 793 | (width / 2).toFloat(), (height / 2).toFloat() 794 | ) 795 | it.draw(canvas) 796 | } 797 | canvas.restore() 798 | 799 | } 800 | 801 | // 绘制中心数字的背景 802 | meterCenterIcon?.let { 803 | it.setBounds( 804 | paddingLeft, paddingTop, 805 | paddingLeft + contentWidth, paddingTop + contentHeight 806 | ) 807 | it.draw(canvas) 808 | } 809 | 810 | 811 | canvas.restore() 812 | 813 | if (meterNumberTextPaint != null && !meterHideCenterNumber) { 814 | // 绘制中心数字 815 | val currentNumberString = currentNumber.toInt().toString() 816 | 817 | val dividerHeight = dp2Px(6F) / 2 818 | val offset = 819 | if (centerDescTextHeight > 0) centerNumberTextHeight - (centerNumberTextHeight + centerDescTextHeight) / 2F else centerNumberTextHeight / 2F 820 | var numberY = cy + offset - dividerHeight 821 | var descY = (cy + centerDescTextHeight) + offset + dividerHeight 822 | if (meterType == 1) { 823 | // meterType 是 1 的时候，desc 绘制在数字上面 824 | numberY = cy + centerNumberTextHeight - offset + dividerHeight 825 | descY = cy - offset - dividerHeight 826 | } else { 827 | // meterType 是 0 的时候，desc 绘制在数字下面 828 | 829 | } 830 | 831 | if (isInEditMode) { 832 | dashCirclePaint?.let { canvas.drawLine(cx - 100, cy, cx + 100, cy, it) } 833 | } 834 | 835 | meterCenterNumberTextPaint?.let { 836 | canvas.drawText( 837 | currentNumberString, 838 | (width / 2F).toFloat(), 839 | numberY, 840 | it 841 | ) 842 | } 843 | if (!meterCenterDesc.isNullOrEmpty()) { 844 | meterCenterDescTextPaint?.let { 845 | canvas.drawText( 846 | meterCenterDesc!!, 847 | (width / 2F).toFloat(), 848 | descY, 849 | it 850 | ) 851 | } 852 | } 853 | 854 | 855 | } 856 | 857 | if (isInEditMode) { 858 | // 编辑模式下，绘制一个圈来看表盘的位置 859 | canvas.drawCircle(cx, cy, contentWidth / 2 - 10F, dashCirclePaint!!) 860 | } 861 | 862 | 863 | } catch (e: Throwable) { 864 | } 865 | } 866 | 867 | /** 868 | * 指针指向的角度 869 | */ 870 | private fun getNeedDegreesBuyCurrentNumber(): Float { 871 | 872 | var fl = currentNumber / maxNumber 873 | if (fl > 1) { 874 | fl = 1F 875 | } 876 | return startAngle + fl * (360 - bottomEmptyAngle) 877 | } 878 | 879 | /** 880 | * 绘制刻度数字 881 | */ 882 | private fun drawNumber( 883 | contentWidth: Int, 884 | cx: Float, 885 | cy: Float, 886 | textPaint: TextPaint, 887 | canvas1: Canvas, 888 | showLimitNumberColor: Boolean = false 889 | ) { 890 | if (meterHideDividerNumber) { 891 | return 892 | } 893 | if (meterNumberTextPaint != null) { 894 | val perAngle = (360 - bottomEmptyAngle) / dividerAreaNumber.toDouble() 895 | val textRadius = contentWidth / 2F - meterNumberMargin 896 | 897 | 898 | if (isInEditMode) { 899 | dashCirclePaint?.let { 900 | canvas1.drawCircle( 901 | cx, 902 | cy, 903 | textRadius, 904 | it 905 | ) 906 | } 907 | } 908 | 909 | dividerNumberList.forEachIndexed { i, action -> 910 | val thisAngle = startAngle + i * perAngle 911 | val realAngle = Math.toRadians(thisAngle) 912 | val mathSin = abs(sin(realAngle)) 913 | val mathCos = abs(cos(realAngle)) 914 | val dx = textRadius * mathSin 915 | val dy = textRadius * mathCos 916 | var strCX: Double 917 | var strCY: Double 918 | if (thisAngle < 90) { 919 | strCX = (cx - dx) 920 | strCY = (cy + dy) 921 | } else if (thisAngle >= 90 && thisAngle < 180) { 922 | strCX = (cx - dx) 923 | strCY = (cy - dy) 924 | } else if (thisAngle >= 180 && thisAngle < 270) { 925 | strCX = (cx + dx) 926 | strCY = (cy - dy) 927 | } else { 928 | strCX = (cx + dx) 929 | strCY = (cy + dy) 930 | } 931 | 932 | val str = action.str 933 | val textColor = textPaint.color 934 | if (showLimitNumberColor && str.isDigitsOnly()) { 935 | if (limitNumber > 0 && str.toInt() >= limitNumber) { 936 | textPaint.color = meterNumberLimitTextColor 937 | } 938 | } 939 | canvas1.drawText( 940 | str, 941 | (strCX - action.textWidth / 2).toFloat(), 942 | (strCY + action.textHeight / 2).toFloat(), 943 | textPaint 944 | ) 945 | textPaint.color = textColor 946 | // canvas1.drawCircle( 947 | // strCX.toFloat(), 948 | // strCY.toFloat(), 949 | // dp2Px(2F), 950 | // dashCirclePaint!! 951 | // ) 952 | } 953 | } 954 | } 955 | 956 | override fun onDetachedFromWindow() { 957 | release() 958 | super.onDetachedFromWindow() 959 | } 960 | 961 | /** 962 | * 释放动画 963 | */ 964 | fun release() { 965 | try { 966 | for (i in needRecyclerBitmapList) { 967 | i.recycle() 968 | } 969 | needRecyclerBitmapList.clear() 970 | valueAnimator?.pause() 971 | valueAnimator?.cancel() 972 | alphaAnimator?.pause() 973 | alphaAnimator?.cancel() 974 | } catch (e: Exception) { 975 | } 976 | } 977 | 978 | } 979 | 980 | data class MeterNumber(val str: String, val textWidth: Float, val textHeight: Float) 981 | 982 | fun View.dp2Px(dip: Float): Float { 983 | return this.resources.dp2Px(dip) 984 | } 985 | 986 | fun Context.dp2Px(dip: Float): Float { 987 | return this.resources.dp2Px(dip) 988 | } 989 | 990 | fun Resources.dp2Px(dip: Float): Float { 991 | return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip, this.displayMetrics) 992 | } 993 | 994 | fun TextPaint.getTextBound(str: String): Rect { 995 | val rect = Rect() 996 | getTextBounds(str, 0, str.length, rect) 997 | return rect 998 | } 999 | 1000 | fun TextPaint.getCapHeight(): Int { 1001 | // 获得数字高度 1002 | return getTextBound("1234567890").height() 1003 | } -------------------------------------------------------------------------------- /speedometer/src/main/java/com/afra55/speedometer/SquareFrameByHeightLayout.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import android.content.Context 4 | import android.util.AttributeSet 5 | import android.widget.FrameLayout 6 | 7 | /** 8 | * @author Afra55 9 | * @date 2020/8/19 10 | * A smile is the best business card. 11 | * 没有成绩，连呼吸都是错的。 12 | */ 13 | class SquareFrameByHeightLayout : FrameLayout { 14 | 15 | constructor(context: Context) : super(context) { 16 | init(null, 0) 17 | } 18 | 19 | constructor(context: Context, attrs: AttributeSet) : super(context, attrs) { 20 | init(attrs, 0) 21 | } 22 | 23 | constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super( 24 | context, 25 | attrs, 26 | defStyle 27 | ) { 28 | init(attrs, defStyle) 29 | } 30 | 31 | fun init(attrs: AttributeSet?, defStyle: Int) { 32 | 33 | } 34 | 35 | override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) { 36 | super.onMeasure(heightMeasureSpec, heightMeasureSpec) 37 | } 38 | } -------------------------------------------------------------------------------- /speedometer/src/main/java/com/afra55/speedometer/SquareFrameLayout.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import android.content.Context 4 | import android.util.AttributeSet 5 | import android.widget.FrameLayout 6 | 7 | /** 8 | * @author Afra55 9 | * @date 2020/8/19 10 | * A smile is the best business card. 11 | * 没有成绩，连呼吸都是错的。 12 | */ 13 | class SquareFrameLayout : FrameLayout { 14 | 15 | constructor(context: Context) : super(context) { 16 | init(null, 0) 17 | } 18 | 19 | constructor(context: Context, attrs: AttributeSet) : super(context, attrs) { 20 | init(attrs, 0) 21 | } 22 | 23 | constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super( 24 | context, 25 | attrs, 26 | defStyle 27 | ) { 28 | init(attrs, defStyle) 29 | } 30 | 31 | fun init(attrs: AttributeSet?, defStyle: Int) { 32 | 33 | } 34 | 35 | override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) { 36 | super.onMeasure(widthMeasureSpec, widthMeasureSpec) 37 | } 38 | } -------------------------------------------------------------------------------- /speedometer/src/main/java/com/afra55/speedometer/ViewPager2Indicator.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import android.content.Context 4 | import android.graphics.Canvas 5 | import android.graphics.Color 6 | import android.graphics.Paint 7 | import android.util.AttributeSet 8 | import android.util.Log 9 | import android.view.View 10 | import androidx.viewpager2.widget.ViewPager2 11 | 12 | /** 13 | * @author Afra55 14 | * @date 2020/8/20 15 | * A smile is the best business card. 16 | * 没有成绩，连呼吸都是错的。 17 | */ 18 | class ViewPager2Indicator :View{ 19 | 20 | constructor(context: Context) : super(context) { 21 | init(null, 0) 22 | } 23 | 24 | constructor(context: Context, attrs: AttributeSet) : super(context, attrs) { 25 | init(attrs, 0) 26 | } 27 | 28 | constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super( 29 | context, 30 | attrs, 31 | defStyle 32 | ) { 33 | init(attrs, defStyle) 34 | } 35 | 36 | var selectedIndicatorWidth = 0 37 | var indicatorMargin = 0 38 | var indicatorColor = Color.WHITE 39 | val paint = Paint(Paint.ANTI_ALIAS_FLAG) 40 | var itemCount = 0 41 | 42 | var currentSelectPosition = 0 43 | var myPositionOffset = 0F 44 | val viewPager2ChangeCallback = object : ViewPager2.OnPageChangeCallback() { 45 | /** 46 | * This method will be invoked when the current page is scrolled, either as part 47 | * of a programmatically initiated smooth scroll or a user initiated touch scroll. 48 | * 49 | * @param position Position index of the first page currently being displayed. 50 | * Page position+1 will be visible if positionOffset is nonzero. 51 | * @param positionOffset Value from [0, 1) indicating the offset from the page at position. 52 | * @param positionOffsetPixels Value in pixels indicating the offset from position. 53 | */ 54 | override fun onPageScrolled( 55 | position: Int, 56 | positionOffset: Float, 57 | positionOffsetPixels: Int 58 | ) { 59 | super.onPageScrolled(position, positionOffset, positionOffsetPixels) 60 | currentSelectPosition = position 61 | myPositionOffset = positionOffset 62 | invalidate() 63 | } 64 | 65 | /** 66 | * This method will be invoked when a new page becomes selected. Animation is not 67 | * necessarily complete. 68 | * 69 | * @param position Position index of the new selected page. 70 | */ 71 | override fun onPageSelected(position: Int) { 72 | super.onPageSelected(position) 73 | } 74 | } 75 | 76 | private fun init(attrs: AttributeSet?, defStyle: Int) { 77 | val a = context.obtainStyledAttributes( 78 | attrs, R.styleable.ViewPager2Indicator, defStyle, 0 79 | ) 80 | 81 | selectedIndicatorWidth = a.getDimensionPixelSize(R.styleable.ViewPager2Indicator_indicatorSelectedWidth, dp2Px(10F).toInt()) 82 | indicatorMargin = a.getDimensionPixelSize(R.styleable.ViewPager2Indicator_indicatorMargin, dp2Px(3F).toInt()) 83 | indicatorColor = a.getColor(R.styleable.ViewPager2Indicator_indicatorColor, indicatorColor) 84 | 85 | a.recycle() 86 | 87 | paint.color = indicatorColor 88 | paint.style = Paint.Style.FILL 89 | 90 | 91 | } 92 | 93 | fun attach(viewPager2: ViewPager2) { 94 | itemCount = viewPager2.adapter?.itemCount ?:0 95 | if (itemCount > 0) { 96 | viewPager2.registerOnPageChangeCallback(viewPager2ChangeCallback) 97 | post { 98 | invalidate() 99 | } 100 | } 101 | } 102 | 103 | override fun onDraw(canvas: Canvas?) { 104 | super.onDraw(canvas) 105 | if (itemCount > 0 && width > 0 && height > 0) { 106 | val paddingLeft = paddingLeft 107 | val paddingTop = paddingTop 108 | val paddingRight = paddingRight 109 | val paddingBottom = paddingBottom 110 | 111 | val contentWidth = width - paddingLeft - paddingRight 112 | 113 | // 高度即作为 indicator 的宽度 114 | val IndicatorWidth = height - paddingTop - paddingBottom 115 | 116 | val cx = paddingLeft + (contentWidth.toFloat()) / 2 117 | val cy = paddingTop + (IndicatorWidth.toFloat()) / 2 118 | 119 | 120 | 121 | var startX = cx - ((itemCount - 1) * (indicatorMargin+ IndicatorWidth ) + selectedIndicatorWidth) / 2 122 | for (i in 0 until itemCount) { 123 | val realOffset = selectedIndicatorWidth - IndicatorWidth 124 | var offset = 125 | if (currentSelectPosition == i){ 126 | realOffset * (1 - myPositionOffset) 127 | } else if (currentSelectPosition + 1 == i) { 128 | realOffset * myPositionOffset 129 | } else { 130 | 0F 131 | } 132 | val left = startX 133 | val top = paddingTop.toFloat() 134 | val right = startX + IndicatorWidth + offset 135 | val bottom = paddingTop + IndicatorWidth + 0F 136 | canvas?.drawRoundRect(left, top, right, bottom, 90F, 90F, paint) 137 | startX = right + indicatorMargin 138 | } 139 | } 140 | } 141 | 142 | 143 | } -------------------------------------------------------------------------------- /speedometer/src/main/res/values/attrs_speedometer.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | -------------------------------------------------------------------------------- /speedometer/src/test/java/com/afra55/speedometer/ExampleUnitTest.kt: -------------------------------------------------------------------------------- 1 | package com.afra55.speedometer 2 | 3 | import org.junit.Test 4 | 5 | import org.junit.Assert.* 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * See [testing documentation](http://d.android.com/tools/testing). 11 | */ 12 | class ExampleUnitTest { 13 | @Test 14 | fun addition_isCorrect() { 15 | assertEquals(4, 2 + 2) 16 | } 17 | } -------------------------------------------------------------------------------- /speedometer_banner.jpeg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Afra55/Android-Speedometer/8a8e9e0f4fd307f80a4032044e453e36d5b41a67/speedometer_banner.jpeg --------------------------------------------------------------------------------