├── .gitignore ├── .idea ├── .gitignore ├── .name ├── caches │ └── build_file_checksums.ser ├── codeStyles │ ├── Project.xml │ └── codeStyleConfig.xml ├── gradle.xml ├── inspectionProfiles │ └── Project_Default.xml ├── kotlinc.xml ├── libraries │ ├── Gradle__androidx_activity_activity_1_2_0_alpha02_aar.xml │ ├── Gradle__androidx_activity_activity_ktx_1_2_0_alpha02_aar.xml │ ├── Gradle__androidx_annotation_annotation_1_1_0_jar.xml │ ├── Gradle__androidx_appcompat_appcompat_1_1_0_aar.xml │ ├── Gradle__androidx_appcompat_appcompat_resources_1_1_0_aar.xml │ ├── Gradle__androidx_arch_core_core_common_2_1_0_jar.xml │ ├── Gradle__androidx_arch_core_core_runtime_2_1_0_aar.xml │ ├── Gradle__androidx_collection_collection_1_1_0_jar.xml │ ├── Gradle__androidx_collection_collection_ktx_1_1_0_jar.xml │ ├── Gradle__androidx_constraintlayout_constraintlayout_1_1_3_aar.xml │ ├── Gradle__androidx_constraintlayout_constraintlayout_solver_1_1_3_jar.xml │ ├── Gradle__androidx_core_core_1_2_0_aar.xml │ ├── Gradle__androidx_core_core_ktx_1_2_0_aar.xml │ ├── Gradle__androidx_cursoradapter_cursoradapter_1_0_0_aar.xml │ ├── Gradle__androidx_customview_customview_1_0_0_aar.xml │ ├── Gradle__androidx_drawerlayout_drawerlayout_1_0_0_aar.xml │ ├── Gradle__androidx_fragment_fragment_1_3_0_alpha02_aar.xml │ ├── Gradle__androidx_fragment_fragment_ktx_1_3_0_alpha02_aar.xml │ ├── Gradle__androidx_interpolator_interpolator_1_0_0_aar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_common_2_3_0_alpha01_jar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_common_java8_2_2_0_jar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_livedata_2_0_0_aar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_livedata_core_2_3_0_alpha01_aar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_livedata_core_ktx_2_3_0_alpha01_aar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_runtime_2_3_0_alpha01_aar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_runtime_ktx_2_3_0_alpha01_aar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_viewmodel_2_3_0_alpha01_aar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_viewmodel_ktx_2_3_0_alpha01_aar.xml │ ├── Gradle__androidx_lifecycle_lifecycle_viewmodel_savedstate_2_3_0_alpha01_aar.xml │ ├── Gradle__androidx_loader_loader_1_0_0_aar.xml │ ├── Gradle__androidx_savedstate_savedstate_1_0_0_aar.xml │ ├── Gradle__androidx_test_core_1_2_0_aar.xml │ ├── Gradle__androidx_test_espresso_espresso_core_3_2_0_aar.xml │ ├── Gradle__androidx_test_espresso_espresso_idling_resource_3_2_0_aar.xml │ ├── Gradle__androidx_test_ext_junit_1_1_1_aar.xml │ ├── Gradle__androidx_test_monitor_1_2_0_aar.xml │ ├── Gradle__androidx_test_runner_1_2_0_aar.xml │ ├── Gradle__androidx_vectordrawable_vectordrawable_1_1_0_aar.xml │ ├── Gradle__androidx_vectordrawable_vectordrawable_animated_1_1_0_aar.xml │ ├── Gradle__androidx_versionedparcelable_versionedparcelable_1_1_0_aar.xml │ ├── Gradle__androidx_viewpager_viewpager_1_0_0_aar.xml │ ├── Gradle__com_google_code_findbugs_jsr305_2_0_1_jar.xml │ ├── Gradle__com_mtdhllf_tools_kit_coroutines_2_0_0_aar.xml │ ├── Gradle__com_squareup_javawriter_2_1_1_jar.xml │ ├── Gradle__javax_inject_javax_inject_1_jar.xml │ ├── Gradle__junit_junit_4_12_jar.xml │ ├── Gradle__net_sf_kxml_kxml2_2_3_0_jar.xml │ ├── Gradle__org_hamcrest_hamcrest_core_1_3_jar.xml │ ├── Gradle__org_hamcrest_hamcrest_integration_1_3_jar.xml │ ├── Gradle__org_hamcrest_hamcrest_library_1_3_jar.xml │ ├── Gradle__org_jetbrains_annotations_13_0_jar.xml │ ├── Gradle__org_jetbrains_kotlin_kotlin_android_extensions_runtime_1_3_61_jar.xml │ ├── Gradle__org_jetbrains_kotlin_kotlin_stdlib_1_3_61_jar.xml │ ├── Gradle__org_jetbrains_kotlin_kotlin_stdlib_common_1_3_61_jar.xml │ ├── Gradle__org_jetbrains_kotlin_kotlin_stdlib_jdk7_1_3_61_jar.xml │ ├── Gradle__org_jetbrains_kotlinx_kotlinx_coroutines_android_1_3_0_jar.xml │ └── Gradle__org_jetbrains_kotlinx_kotlinx_coroutines_core_1_3_0_jar.xml ├── misc.xml ├── modules.xml └── runConfigurations.xml ├── ActivityResultSample.iml ├── README.md ├── app ├── .gitignore ├── app.iml ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── mtdhllf │ │ └── sample │ │ └── activityresult │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── mtdhllf │ │ │ └── sample │ │ │ └── activityresult │ │ │ ├── Ext.kt │ │ │ ├── MainActivity.kt │ │ │ ├── SecondActivity.kt │ │ │ ├── TakePhotoLiveData.kt │ │ │ └── TakePhotoObserver.kt │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── activity_main.xml │ │ └── activity_second.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 │ └── mtdhllf │ └── sample │ └── activityresult │ └── ExampleUnitTest.kt ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── local.properties └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Project exclude paths 2 | /.gradle/ -------------------------------------------------------------------------------- /.idea/.gitignore: -------------------------------------------------------------------------------- 1 | # Default ignored files 2 | /workspace.xml -------------------------------------------------------------------------------- /.idea/.name: -------------------------------------------------------------------------------- 1 | ActivityResultSample -------------------------------------------------------------------------------- /.idea/caches/build_file_checksums.ser: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mtdhllf/ImageColorSample/9edfe7d15599b6fa3af616786b413cf561a974c9/.idea/caches/build_file_checksums.ser -------------------------------------------------------------------------------- /.idea/codeStyles/Project.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 6 | 7 | 8 | 10 | 11 | 12 |
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-------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_stdlib_jdk7_1_3_61_jar.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /.idea/libraries/Gradle__org_jetbrains_kotlinx_kotlinx_coroutines_android_1_3_0_jar.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /.idea/libraries/Gradle__org_jetbrains_kotlinx_kotlinx_coroutines_core_1_3_0_jar.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 14 | 15 | 16 | 17 | 18 | 1.8 19 | 20 | 25 | 26 | 27 | 28 | 29 | 30 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /ActivityResultSample.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ImageColorSample 2 | [介绍博客](https://mtdhllf.github.io/palette/) 3 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/app.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 10 | 11 | 12 | 13 | 26 | 27 | 28 | 29 | 30 | 32 | 33 | 48 | 61 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | 177 | 178 | 179 | 180 | 181 | 182 | 183 | 184 | 185 | 186 | 187 | 188 | -------------------------------------------------------------------------------- /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 | 9 | defaultConfig { 10 | applicationId "luyao.sample.activityresult" 11 | minSdkVersion 21 12 | targetSdkVersion 29 13 | versionCode 1 14 | versionName "1.0" 15 | 16 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 17 | } 18 | 19 | buildTypes { 20 | release { 21 | minifyEnabled false 22 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 23 | } 24 | } 25 | 26 | } 27 | 28 | dependencies { 29 | implementation fileTree(dir: 'libs', include: ['*.jar']) 30 | implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" 31 | implementation 'androidx.appcompat:appcompat:1.1.0' 32 | implementation 'androidx.core:core-ktx:1.2.0' 33 | implementation 'androidx.constraintlayout:constraintlayout:1.1.3' 34 | testImplementation 'junit:junit:4.12' 35 | androidTestImplementation 'androidx.test.ext:junit:1.1.1' 36 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' 37 | 38 | implementation 'androidx.activity:activity-ktx:1.2.0-alpha02' 39 | implementation 'androidx.fragment:fragment-ktx:1.3.0-alpha02' 40 | implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.2.0" 41 | implementation "androidx.lifecycle:lifecycle-common-java8:2.2.0" 42 | //线程调度 43 | implementation 'com.mtdhllf.tools:kit-coroutines:2.0.0' 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 22 | -------------------------------------------------------------------------------- /app/src/androidTest/java/mtdhllf/sample/activityresult/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package mtdhllf.sample.activityresult 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("luyao.sample.activityresult", appContext.packageName) 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | -------------------------------------------------------------------------------- /app/src/main/java/mtdhllf/sample/activityresult/Ext.kt: -------------------------------------------------------------------------------- 1 | package mtdhllf.sample.activityresult 2 | 3 | import android.content.Context 4 | import android.widget.Toast 5 | 6 | fun Context.toast(message:String){ 7 | Toast.makeText(this,message,Toast.LENGTH_SHORT).show() 8 | } -------------------------------------------------------------------------------- /app/src/main/java/mtdhllf/sample/activityresult/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package mtdhllf.sample.activityresult 2 | 3 | import android.Manifest 4 | import android.app.Activity 5 | import android.content.Intent 6 | import android.graphics.Bitmap 7 | import android.graphics.Color 8 | import android.graphics.drawable.BitmapDrawable 9 | import android.graphics.drawable.Drawable 10 | import android.os.Bundle 11 | import android.provider.MediaStore 12 | import android.util.Log 13 | import androidx.activity.invoke 14 | import androidx.activity.result.ActivityResult 15 | import androidx.activity.result.contract.ActivityResultContract 16 | import androidx.activity.result.contract.ActivityResultContracts 17 | import androidx.appcompat.app.AppCompatActivity 18 | import androidx.lifecycle.Observer 19 | import com.github.mtdhllf.kit.coroutines.Run 20 | import kotlinx.android.synthetic.main.activity_main.* 21 | import java.util.concurrent.ConcurrentHashMap 22 | import kotlin.math.abs 23 | 24 | class MainActivity : AppCompatActivity(R.layout.activity_main) { 25 | 26 | private lateinit var takePhotoObserver: TakePhotoObserver 27 | private lateinit var takePhotoLiveData: TakePhotoLiveData 28 | 29 | private val startActivity = 30 | prepareCall(ActivityResultContracts.StartActivityForResult()) { result: ActivityResult? -> 31 | toast(result?.data?.getStringExtra("value") ?: "") 32 | } 33 | 34 | private val dial = prepareCall(ActivityResultContracts.Dial()) { result -> 35 | toast("dial $result") 36 | } 37 | 38 | private val requestPermission = 39 | prepareCall(ActivityResultContracts.RequestPermission()) { result -> 40 | toast("request permission $result") 41 | } 42 | 43 | private val requestPermissions = 44 | prepareCall(ActivityResultContracts.RequestPermissions()) { result -> 45 | } 46 | 47 | private val takePicture = prepareCall(ActivityResultContracts.TakePicture()) { result -> 48 | toast("take picture : $result") 49 | photo.setImageBitmap(result) 50 | Run.onBackground { 51 | val allColor = ConcurrentHashMap() 52 | for (y in (0 until result.height)) { 53 | for (x in (0 until result.width)){ 54 | val color = result.getPixel(x, y) 55 | if(allColor.containsKey(color)){ 56 | allColor[color] = allColor[color]!!+1 57 | }else{ 58 | allColor[color] = 1 59 | } 60 | } 61 | } 62 | Log.e("color","size="+allColor.keys.size+" width="+result.width+" height="+result.height) 63 | 64 | val sortColor = allColor.toList().sortedByDescending { it.second }.toMap().toMutableMap() 65 | 66 | // sortColor.forEach { 67 | // Log.d("${it.first}","${it.second}") 68 | // } 69 | 70 | val hsv1 = FloatArray(3) 71 | val hsv2 = FloatArray(3) 72 | 73 | Log.i("合并前","${sortColor.size}") 74 | 75 | 76 | for (i in (0 until 10)) { 77 | if(sortColor.size>i){ 78 | val iterator = sortColor.iterator() 79 | var first = iterator.next() 80 | 81 | (0 until i).forEach { _ -> 82 | first = iterator.next() 83 | } 84 | while (iterator.hasNext()){ 85 | val second = iterator.next() 86 | Color.colorToHSV(first.key,hsv1) 87 | Color.colorToHSV(second.key,hsv2) 88 | if(checkColorSimilar(hsv1,hsv2)){ 89 | first.setValue(first.value+second.value) 90 | iterator.remove() 91 | } 92 | } 93 | } 94 | } 95 | 96 | 97 | Log.i("合并后","${sortColor.size}") 98 | 99 | sortColor.toList().sortedByDescending { it.second }.take(10).forEachIndexed { index, it -> 100 | val hsv = FloatArray(3) 101 | Color.colorToHSV(it.first,hsv) 102 | Log.e("${it.first}-----${it.second}","h=${hsv[0]} s=${hsv[1]} v=${hsv[2]}") 103 | 104 | Run.onUiASync { 105 | val button = when (index) { 106 | 0 -> color1 107 | 1 -> color2 108 | 2 -> color3 109 | 3 -> color4 110 | 4 -> color5 111 | 5 -> color6 112 | 6 -> color7 113 | 7 -> color8 114 | 8 -> color9 115 | else -> color10 116 | } 117 | button.setBackgroundColor(it.first) 118 | button.text = "${it.second}" 119 | } 120 | } 121 | 122 | } 123 | } 124 | 125 | private fun checkColorSimilar(hsv1: FloatArray, hsv2: FloatArray): Boolean { 126 | val similarH = 10f 127 | val similarS = 0.05 128 | val similarV = 0.05 129 | when { 130 | hsv1[0] > 360 - similarH && hsv2[0] < similarH -> { 131 | hsv1[0] = 360f - hsv1[0] 132 | } 133 | } 134 | return when { 135 | abs(hsv1[0] - hsv2[0]) < similarH -> true 136 | abs(hsv1[0] - hsv2[0]) < similarH * 2 && abs(hsv1[1] - hsv2[1]) < similarS -> true 137 | abs(hsv1[0] - hsv2[0]) < similarH * 2 && abs(hsv1[2] - hsv2[2]) < similarV -> true 138 | else -> false 139 | } 140 | 141 | } 142 | 143 | private class TakePicDrawable : ActivityResultContract() { 144 | 145 | override fun createIntent(input: Void?): Intent { 146 | return Intent(MediaStore.ACTION_IMAGE_CAPTURE) 147 | } 148 | 149 | override fun parseResult(resultCode: Int, intent: Intent?): Drawable? { 150 | if (resultCode != Activity.RESULT_OK || intent == null) return null 151 | val bitmap = intent.getParcelableExtra("data") 152 | return BitmapDrawable(bitmap) 153 | } 154 | } 155 | 156 | private val takePictureCustom = prepareCall(TakePicDrawable()) { result -> 157 | toast("take picture : $result") 158 | photo.setImageDrawable(result) 159 | } 160 | 161 | 162 | override fun onCreate(savedInstanceState: Bundle?) { 163 | super.onCreate(savedInstanceState) 164 | 165 | takePhotoLiveData = TakePhotoLiveData(activityResultRegistry) 166 | takePhotoLiveData.observeForever(Observer { bitmap -> 167 | photo.setImageBitmap(bitmap) 168 | }) 169 | 170 | takePhotoObserver = TakePhotoObserver(activityResultRegistry) { bitmap -> 171 | photo.setImageBitmap(bitmap) 172 | } 173 | lifecycle.addObserver(takePhotoObserver) 174 | 175 | jumpBt.setOnClickListener { startActivity.launch(Intent(this, SecondActivity::class.java)) } 176 | permissionBt.setOnClickListener { requestPermission.launch(Manifest.permission.READ_PHONE_STATE) } 177 | dialBt.setOnClickListener { dial("123456789") } 178 | pictureBt.setOnClickListener { takePicture() } 179 | pictureCustomBt.setOnClickListener { takePictureCustom() } 180 | customObserverBt.setOnClickListener { takePhotoObserver.takePicture() } 181 | liveDataBt.setOnClickListener { takePhotoLiveData.takePhotoLauncher() } 182 | } 183 | 184 | } 185 | -------------------------------------------------------------------------------- /app/src/main/java/mtdhllf/sample/activityresult/SecondActivity.kt: -------------------------------------------------------------------------------- 1 | package mtdhllf.sample.activityresult 2 | 3 | import android.app.Activity 4 | import android.content.Intent 5 | import android.os.Bundle 6 | import androidx.appcompat.app.AppCompatActivity 7 | import kotlinx.android.synthetic.main.activity_second.* 8 | 9 | class SecondActivity : AppCompatActivity(R.layout.activity_second){ 10 | 11 | override fun onCreate(savedInstanceState: Bundle?) { 12 | super.onCreate(savedInstanceState) 13 | 14 | back.setOnClickListener { 15 | setResult(Activity.RESULT_OK, Intent().putExtra("value","I am back !")) 16 | finish() 17 | } 18 | } 19 | } -------------------------------------------------------------------------------- /app/src/main/java/mtdhllf/sample/activityresult/TakePhotoLiveData.kt: -------------------------------------------------------------------------------- 1 | package mtdhllf.sample.activityresult 2 | 3 | import android.graphics.Bitmap 4 | import androidx.activity.result.ActivityResultLauncher 5 | import androidx.activity.result.ActivityResultRegistry 6 | import androidx.activity.result.contract.ActivityResultContracts 7 | import androidx.lifecycle.LiveData 8 | 9 | class TakePhotoLiveData(private val registry: ActivityResultRegistry) : LiveData() { 10 | 11 | lateinit var takePhotoLauncher: ActivityResultLauncher 12 | 13 | override fun onActive() { 14 | super.onActive() 15 | takePhotoLauncher = registry.registerActivityResultCallback( 16 | "key", 17 | ActivityResultContracts.TakePicture() 18 | ) { result -> 19 | value = result 20 | } 21 | } 22 | 23 | override fun onInactive() { 24 | super.onInactive() 25 | takePhotoLauncher.dispose() 26 | } 27 | 28 | } -------------------------------------------------------------------------------- /app/src/main/java/mtdhllf/sample/activityresult/TakePhotoObserver.kt: -------------------------------------------------------------------------------- 1 | package mtdhllf.sample.activityresult 2 | 3 | import android.graphics.Bitmap 4 | import androidx.activity.invoke 5 | import androidx.activity.result.ActivityResultLauncher 6 | import androidx.activity.result.ActivityResultRegistry 7 | import androidx.activity.result.contract.ActivityResultContracts 8 | import androidx.lifecycle.DefaultLifecycleObserver 9 | import androidx.lifecycle.LifecycleOwner 10 | 11 | class TakePhotoObserver( 12 | private val registry: ActivityResultRegistry, 13 | private val func: (Bitmap) -> Unit 14 | ) : DefaultLifecycleObserver { 15 | 16 | private lateinit var takePhotoLauncher: ActivityResultLauncher 17 | 18 | override fun onCreate(owner: LifecycleOwner) { 19 | takePhotoLauncher = registry.registerActivityResultCallback( 20 | "key", 21 | ActivityResultContracts.TakePicture() 22 | ) { bitmap -> 23 | func(bitmap) 24 | } 25 | } 26 | 27 | fun takePicture(){ 28 | takePhotoLauncher() 29 | } 30 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 8 | 9 | 15 | 18 | 21 | 22 | 23 | 24 | 30 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 11 | 12 |