├── .gitignore ├── .idea ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── dictionaries │ └── relex.xml ├── encodings.xml ├── gradle.xml ├── misc.xml ├── modules.xml └── runConfigurations.xml ├── LICENSE.txt ├── README.md ├── WaveFormView ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── me │ │ └── relex │ │ └── widget │ │ └── waveform │ │ ├── WaveFormInfo.java │ │ ├── WaveFormListener.java │ │ ├── WaveFormThumbView.java │ │ ├── WaveFormView.java │ │ ├── WaveUtil.java │ │ └── gesture │ │ ├── DragDetector.java │ │ ├── OnDragGestureListener.java │ │ ├── OnScaleDragGestureListener.java │ │ └── ScaleDragDetector.java │ └── res │ └── values │ └── attrs.xml ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── me │ │ └── relex │ │ └── waveformdemo │ │ └── MainActivity.java │ └── res │ ├── layout │ └── activity_main.xml │ ├── mipmap-hdpi │ └── ic_launcher.png │ ├── mipmap-mdpi │ └── ic_launcher.png │ ├── mipmap-xhdpi │ └── ic_launcher.png │ ├── mipmap-xxhdpi │ └── ic_launcher.png │ ├── mipmap-xxxhdpi │ └── ic_launcher.png │ ├── raw │ └── waveform.json │ └── values │ ├── colors.xml │ ├── strings.xml │ └── styles.xml ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── screenshot.gif └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/workspace.xml 5 | /.idea/libraries 6 | .DS_Store 7 | /build 8 | /captures 9 | .externalNativeBuild 10 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/dictionaries/relex.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 18 | 19 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 19 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | Android 39 | 40 | 41 | Android Lint 42 | 43 | 44 | Java language level migration aids 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 66 | 67 | 68 | 69 | 70 | 1.8 71 | 72 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 88 | 89 | 90 | 91 | 92 | 93 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # WaveFormView 2 | 3 | WaveFormView can render audio waveform data for Android. 4 | 5 | ![WaveFormView](/screenshot.gif) 6 | 7 | 8 | ## Generate waveform data 9 | 10 | WaveFormView uses waveform data files produced by [audiowaveform](https://github.com/bbc/audiowaveform). 11 | 12 | To generate a JSON format waveform data file: 13 | 14 | ``` 15 | audiowaveform -i sample.mp3 -o sample.json 16 | ``` 17 | 18 | Visit [audiowaveform](https://github.com/bbc/audiowaveform) main page for more details. 19 | 20 | 21 | # [License](/LICENSE.txt) 22 | 23 | -------------------------------------------------------------------------------- /WaveFormView/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /WaveFormView/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | 3 | android { 4 | compileSdkVersion 24 5 | buildToolsVersion "24.0.3" 6 | 7 | defaultConfig { 8 | minSdkVersion 14 9 | targetSdkVersion 24 10 | versionCode 1 11 | versionName "1.0" 12 | } 13 | buildTypes { 14 | release { 15 | minifyEnabled false 16 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 17 | } 18 | } 19 | } 20 | 21 | dependencies { 22 | compile 'com.android.support:support-v4:24.2.1' 23 | 24 | } 25 | -------------------------------------------------------------------------------- /WaveFormView/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /Users/relex/android-sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /WaveFormView/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/WaveFormInfo.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform; 2 | 3 | import java.util.List; 4 | 5 | public class WaveFormInfo { 6 | 7 | //采样率（每秒采样数) 8 | private int sample_rate; 9 | //每像素点的采样数 10 | private int samples_per_pixel; 11 | private int bits; 12 | //像素长度，data长度一半 13 | private int length; 14 | 15 | private List data; 16 | 17 | public int getSample_rate() { 18 | return sample_rate; 19 | } 20 | 21 | public void setSample_rate(int sample_rate) { 22 | this.sample_rate = sample_rate; 23 | } 24 | 25 | public int getSamples_per_pixel() { 26 | return samples_per_pixel; 27 | } 28 | 29 | public void setSamples_per_pixel(int samples_per_pixel) { 30 | this.samples_per_pixel = samples_per_pixel; 31 | } 32 | 33 | public int getBits() { 34 | return bits; 35 | } 36 | 37 | public void setBits(int bits) { 38 | this.bits = bits; 39 | } 40 | 41 | public int getLength() { 42 | return length; 43 | } 44 | 45 | public void setLength(int length) { 46 | this.length = length; 47 | } 48 | 49 | public List getData() { 50 | return data; 51 | } 52 | 53 | public void setData(List data) { 54 | this.data = data; 55 | } 56 | } 57 | -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/WaveFormListener.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform; 2 | 3 | public interface WaveFormListener { 4 | void onScrollChanged(double startTime, double endTime); 5 | } -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/WaveFormThumbView.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform; 2 | 3 | import android.annotation.TargetApi; 4 | import android.content.Context; 5 | import android.content.res.TypedArray; 6 | import android.graphics.Canvas; 7 | import android.graphics.Color; 8 | import android.graphics.Paint; 9 | import android.os.Build; 10 | import android.support.annotation.NonNull; 11 | import android.support.annotation.Nullable; 12 | import android.util.AttributeSet; 13 | import android.view.MotionEvent; 14 | import android.view.View; 15 | import android.view.ViewParent; 16 | import java.util.List; 17 | import me.relex.waveformview.R; 18 | import me.relex.widget.waveform.gesture.DragDetector; 19 | import me.relex.widget.waveform.gesture.OnDragGestureListener; 20 | 21 | public class WaveFormThumbView extends View implements OnDragGestureListener { 22 | private Paint mWaveFormPaint; 23 | private Paint mWaveFormHighLightPaint; 24 | @Nullable private WaveFormInfo mBean; 25 | private double mTotalSecond = 0d; 26 | private float mThumbScale; 27 | private double mThumbStartSecond = 0d; 28 | private double mThumbDuration = 0d; 29 | private DragDetector mDragDetector; 30 | private int mThumbStartTimePixel; 31 | private int mThumbEndTimePixel; 32 | 33 | private OnDragThumbListener mOnDragThumbListener; 34 | 35 | public WaveFormThumbView(Context context) { 36 | super(context); 37 | init(context, null); 38 | } 39 | 40 | public WaveFormThumbView(Context context, AttributeSet attrs) { 41 | super(context, attrs); 42 | init(context, attrs); 43 | } 44 | 45 | public WaveFormThumbView(Context context, AttributeSet attrs, int defStyleAttr) { 46 | super(context, attrs, defStyleAttr); 47 | init(context, attrs); 48 | } 49 | 50 | @TargetApi(Build.VERSION_CODES.LOLLIPOP) 51 | public WaveFormThumbView(Context context, AttributeSet attrs, int defStyleAttr, 52 | int defStyleRes) { 53 | super(context, attrs, defStyleAttr, defStyleRes); 54 | init(context, attrs); 55 | } 56 | 57 | private void init(Context context, @Nullable AttributeSet attrs) { 58 | int waveformColor = Color.BLACK; 59 | int highlightColor = Color.GRAY; 60 | 61 | if (attrs != null) { 62 | TypedArray typedArray = 63 | context.obtainStyledAttributes(attrs, R.styleable.WaveFormThumbView); 64 | waveformColor = typedArray.getColor(R.styleable.WaveFormThumbView_wf_waveform_color, 65 | Color.BLACK); 66 | highlightColor = 67 | typedArray.getColor(R.styleable.WaveFormThumbView_wf_waveform_highlight_color, 68 | Color.GRAY); 69 | typedArray.recycle(); 70 | } 71 | 72 | mWaveFormPaint = new Paint(); 73 | mWaveFormPaint.setColor(waveformColor); 74 | mWaveFormPaint.setStyle(Paint.Style.FILL_AND_STROKE); 75 | mWaveFormPaint.setStrokeWidth(0); 76 | 77 | mWaveFormHighLightPaint = new Paint(); 78 | mWaveFormHighLightPaint.setColor(highlightColor); 79 | mWaveFormHighLightPaint.setStyle(Paint.Style.FILL_AND_STROKE); 80 | mWaveFormHighLightPaint.setStrokeWidth(0); 81 | 82 | mDragDetector = new DragDetector(context, this); 83 | } 84 | 85 | public void setWave(WaveFormInfo bean) { 86 | if (bean == null) { 87 | return; 88 | } 89 | 90 | mBean = bean; 91 | initWave(bean); 92 | invalidate(); 93 | } 94 | 95 | public void initWave(@NonNull WaveFormInfo bean) { 96 | int sampleRate = bean.getSample_rate(); 97 | int samplesPerPixel = bean.getSamples_per_pixel(); 98 | int length = bean.getLength(); 99 | mTotalSecond = WaveUtil.dataPixelsToSecond(length, sampleRate, samplesPerPixel); 100 | computerMinScaleFactor(); 101 | } 102 | 103 | @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { 104 | computerMinScaleFactor(); 105 | } 106 | 107 | private void computerMinScaleFactor() { 108 | int width = getMeasuredWidth(); 109 | 110 | if (mBean == null || width <= 0) { 111 | return; 112 | } 113 | 114 | mThumbScale = (float) width / mBean.getLength(); 115 | configScalePaint(mThumbScale); 116 | } 117 | 118 | private void configScalePaint(float scale) { 119 | float smokeWidth = (int) Math.ceil(scale); 120 | smokeWidth = smokeWidth < 0 ? 0 : smokeWidth; 121 | mWaveFormPaint.setStrokeWidth(smokeWidth); 122 | mWaveFormHighLightPaint.setStrokeWidth(smokeWidth); 123 | } 124 | 125 | @Override public boolean onTouchEvent(MotionEvent event) { 126 | 127 | int action = event.getActionMasked(); 128 | switch (action) { 129 | case MotionEvent.ACTION_DOWN: { 130 | ViewParent parent = getParent(); 131 | if (parent != null) { 132 | parent.requestDisallowInterceptTouchEvent(true); 133 | } 134 | } 135 | break; 136 | case MotionEvent.ACTION_UP: 137 | case MotionEvent.ACTION_CANCEL: { 138 | ViewParent parent = getParent(); 139 | if (parent != null) { 140 | parent.requestDisallowInterceptTouchEvent(false); 141 | } 142 | } 143 | break; 144 | } 145 | 146 | return mDragDetector.onTouchEvent(event); 147 | } 148 | 149 | @Override protected void onDraw(Canvas canvas) { 150 | super.onDraw(canvas); 151 | 152 | if (mBean == null) { 153 | return; 154 | } 155 | drawWave(canvas, mBean); 156 | } 157 | 158 | private void drawWave(Canvas canvas, @NonNull WaveFormInfo bean) { 159 | 160 | int width = getMeasuredWidth(); 161 | int height = getMeasuredHeight(); 162 | 163 | List data = bean.getData(); 164 | int dataLength = bean.getLength(); 165 | boolean is8Bit = bean.getBits() == 8; 166 | 167 | int dataPixel = 0; 168 | float axisX = 0; 169 | int finalAxisX = -1; 170 | int low; 171 | int high; 172 | int lowY; 173 | int highY; 174 | 175 | while (axisX < width) { 176 | if (dataPixel < 0 || dataPixel >= dataLength) { 177 | break; 178 | } 179 | 180 | int nearestAxisX = (int) axisX; 181 | if (nearestAxisX != finalAxisX) { 182 | finalAxisX = nearestAxisX; 183 | 184 | low = (is8Bit ? data.get(dataPixel * 2) * 256 : data.get(dataPixel * 2)) + 32768; 185 | high = (is8Bit ? data.get(dataPixel * 2 + 1) * 256 : data.get(dataPixel * 2 + 1)) 186 | + 32768; 187 | lowY = height - low * height / 65536; 188 | highY = height - high * height / 65536; 189 | canvas.drawLine(finalAxisX, lowY, finalAxisX, highY, 190 | dataPixel >= mThumbStartTimePixel && dataPixel <= mThumbEndTimePixel 191 | ? mWaveFormHighLightPaint : mWaveFormPaint); 192 | } 193 | axisX += mThumbScale; 194 | dataPixel++; 195 | } 196 | } 197 | 198 | public void updateThumb(double thumbStartSecond, double thumbEndSecond) { 199 | if (mBean == null) { 200 | return; 201 | } 202 | mThumbStartSecond = thumbStartSecond; 203 | mThumbDuration = thumbEndSecond - thumbStartSecond; 204 | int sampleRate = mBean.getSample_rate(); 205 | int samplesPerPixel = mBean.getSamples_per_pixel(); 206 | mThumbStartTimePixel = 207 | WaveUtil.secondsToPixels(thumbStartSecond, sampleRate, samplesPerPixel, 1f); 208 | mThumbEndTimePixel = 209 | WaveUtil.secondsToPixels(thumbEndSecond, sampleRate, samplesPerPixel, 1f); 210 | float thumbRectLeft = mThumbStartTimePixel * mThumbScale; 211 | float thumbRectRight = mThumbEndTimePixel * mThumbScale; 212 | mDragDetector.setEnableRect(thumbRectLeft, 0, thumbRectRight, getHeight()); 213 | 214 | invalidate(); 215 | } 216 | 217 | @Override public void onDrag(float dx, float dy) { 218 | if (mBean == null) { 219 | return; 220 | } 221 | 222 | int sampleRate = mBean.getSample_rate(); 223 | int samplesPerPixel = mBean.getSamples_per_pixel(); 224 | 225 | mThumbStartSecond += WaveUtil.pixelsToSeconds(dx, sampleRate, samplesPerPixel, mThumbScale); 226 | 227 | // 右边界 228 | if (mThumbStartSecond + mThumbDuration > mTotalSecond) { 229 | mThumbStartSecond = mTotalSecond - mThumbDuration; 230 | } 231 | 232 | // 左边界 233 | if (mThumbStartSecond < 0) { 234 | mThumbStartSecond = 0d; 235 | } 236 | 237 | if (mOnDragThumbListener != null) { 238 | mOnDragThumbListener.onDrag(mThumbStartSecond); 239 | } 240 | } 241 | 242 | public void setOnDragThumbListener(OnDragThumbListener onDragThumbListener) { 243 | mOnDragThumbListener = onDragThumbListener; 244 | } 245 | 246 | public interface OnDragThumbListener { 247 | void onDrag(double startTime); 248 | } 249 | } 250 | -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/WaveFormView.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform; 2 | 3 | import android.annotation.TargetApi; 4 | import android.content.Context; 5 | import android.content.res.TypedArray; 6 | import android.graphics.Canvas; 7 | import android.graphics.Color; 8 | import android.graphics.Paint; 9 | import android.os.Build; 10 | import android.support.annotation.NonNull; 11 | import android.support.annotation.Nullable; 12 | import android.support.v4.view.GestureDetectorCompat; 13 | import android.support.v4.widget.ScrollerCompat; 14 | import android.text.TextPaint; 15 | import android.util.AttributeSet; 16 | import android.view.GestureDetector; 17 | import android.view.MotionEvent; 18 | import android.view.View; 19 | import android.view.ViewParent; 20 | import android.view.animation.AccelerateDecelerateInterpolator; 21 | import android.view.animation.Interpolator; 22 | import java.util.List; 23 | import me.relex.waveformview.R; 24 | import me.relex.widget.waveform.gesture.OnScaleDragGestureListener; 25 | import me.relex.widget.waveform.gesture.ScaleDragDetector; 26 | 27 | public class WaveFormView extends View implements OnScaleDragGestureListener { 28 | private final static int[] SECOND_STEPS = { 1, 2, 5, 10, 20, 30 }; // 秒数间隔区间 29 | 30 | private float mMaxScale = 3f; 31 | private float mMinScale = 1f; 32 | 33 | @Nullable private WaveFormInfo mWaveFormInfo; 34 | private Paint mWaveFormPaint; 35 | private Paint mTimeLabelPaint; 36 | private TextPaint mTimeTextPaint; 37 | private float mTimeTextHeight; 38 | 39 | private int mTimeLabelHeight = 24; 40 | private int mTimeLabelMinSpace = 72; 41 | 42 | private double mTotalSecond = 0d; 43 | private double mStartSecond = 0d; 44 | private float mScale = 1f; 45 | 46 | @Nullable private WaveFormListener mWaveFormListener; 47 | private ScaleDragDetector mScaleDragDetector; 48 | private GestureDetectorCompat mGestureDetector; 49 | private FlingRunnable mCurrentFlingRunnable; 50 | private AnimatedZoomRunnable mAnimatedZoomRunnable; 51 | 52 | public WaveFormView(Context context) { 53 | super(context); 54 | init(context, null); 55 | } 56 | 57 | public WaveFormView(Context context, AttributeSet attrs) { 58 | super(context, attrs); 59 | init(context, attrs); 60 | } 61 | 62 | public WaveFormView(Context context, AttributeSet attrs, int defStyleAttr) { 63 | super(context, attrs, defStyleAttr); 64 | init(context, attrs); 65 | } 66 | 67 | @TargetApi(Build.VERSION_CODES.LOLLIPOP) 68 | public WaveFormView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 69 | super(context, attrs, defStyleAttr, defStyleRes); 70 | init(context, attrs); 71 | } 72 | 73 | private void init(Context context, @Nullable AttributeSet attrs) { 74 | int waveformColor = Color.BLACK; 75 | int textColor = Color.BLACK; 76 | int textSize = 24; 77 | int labelColor = Color.BLACK; 78 | int labelWidth = 2; 79 | 80 | if (attrs != null) { 81 | TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.WaveFormView); 82 | mMaxScale = typedArray.getFloat(R.styleable.WaveFormView_wf_waveform_max_scale, 3f); 83 | waveformColor = 84 | typedArray.getColor(R.styleable.WaveFormView_wf_waveform_color, Color.BLACK); 85 | textColor = 86 | typedArray.getColor(R.styleable.WaveFormView_wf_time_text_color, Color.BLACK); 87 | textSize = typedArray.getDimensionPixelSize(R.styleable.WaveFormView_wf_time_text_size, 88 | 24); 89 | labelColor = 90 | typedArray.getColor(R.styleable.WaveFormView_wf_time_label_color, Color.BLACK); 91 | labelWidth = 92 | typedArray.getDimensionPixelSize(R.styleable.WaveFormView_wf_time_label_width, 93 | 2); 94 | mTimeLabelHeight = 95 | typedArray.getDimensionPixelSize(R.styleable.WaveFormView_wf_time_label_height, 96 | 24); 97 | mTimeLabelMinSpace = typedArray.getDimensionPixelSize( 98 | R.styleable.WaveFormView_wf_time_label_min_space, 72); 99 | typedArray.recycle(); 100 | } 101 | 102 | mWaveFormPaint = new Paint(); 103 | mWaveFormPaint.setColor(waveformColor); 104 | mWaveFormPaint.setStyle(Paint.Style.FILL_AND_STROKE); 105 | mWaveFormPaint.setStrokeWidth(0); 106 | 107 | mTimeTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 108 | mTimeTextPaint.setColor(textColor); 109 | mTimeTextPaint.setTextSize(textSize); 110 | mTimeTextHeight = Math.abs(mTimeTextPaint.descent() - mTimeTextPaint.ascent()); 111 | 112 | mTimeLabelPaint = new Paint(); 113 | mTimeLabelPaint.setColor(labelColor); 114 | mTimeLabelPaint.setStyle(Paint.Style.FILL_AND_STROKE); 115 | mTimeLabelPaint.setStrokeWidth(labelWidth); 116 | 117 | mScaleDragDetector = new ScaleDragDetector(context, this); 118 | mGestureDetector = 119 | new GestureDetectorCompat(context, new GestureDetector.SimpleOnGestureListener()); 120 | mGestureDetector.setOnDoubleTapListener(new GestureDetector.OnDoubleTapListener() { 121 | @Override public boolean onSingleTapConfirmed(MotionEvent e) { 122 | return false; 123 | } 124 | 125 | @Override public boolean onDoubleTap(MotionEvent e) { 126 | float x = e.getX(); 127 | float maxScale = mMaxScale; 128 | float minScale = 1; 129 | float mediumScale = (maxScale + minScale) / 2; 130 | if (mScale < mediumScale) { 131 | setScale(mediumScale, x, true); 132 | } else if (mScale >= mediumScale && mScale < maxScale) { 133 | setScale(maxScale, x, true); 134 | } else { 135 | setScale(minScale, x, true); 136 | } 137 | return true; 138 | } 139 | 140 | @Override public boolean onDoubleTapEvent(MotionEvent e) { 141 | return false; 142 | } 143 | }); 144 | } 145 | 146 | public void setWave(WaveFormInfo info) { 147 | if (info == null) { 148 | return; 149 | } 150 | mWaveFormInfo = info; 151 | initWave(info); 152 | 153 | int width = getMeasuredWidth(); 154 | if (mWaveFormListener != null && width > 0) { 155 | double viewSeconds = WaveUtil.pixelsToSeconds(width, info.getSample_rate(), 156 | info.getSamples_per_pixel(), mScale); 157 | mWaveFormListener.onScrollChanged(mStartSecond, mStartSecond + viewSeconds); 158 | } 159 | 160 | invalidate(); 161 | } 162 | 163 | public void initWave(@NonNull WaveFormInfo info) { 164 | int sampleRate = info.getSample_rate(); 165 | int samplesPerPixel = info.getSamples_per_pixel(); 166 | int length = info.getLength(); 167 | mTotalSecond = WaveUtil.dataPixelsToSecond(length, sampleRate, samplesPerPixel); 168 | computerMinScaleFactor(); 169 | } 170 | 171 | @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { 172 | computerMinScaleFactor(); 173 | 174 | if (mWaveFormListener != null && w > 0 && mWaveFormInfo != null) { 175 | double viewSeconds = 176 | WaveUtil.pixelsToSeconds(getMeasuredWidth(), mWaveFormInfo.getSample_rate(), 177 | mWaveFormInfo.getSamples_per_pixel(), mScale); 178 | mWaveFormListener.onScrollChanged(mStartSecond, mStartSecond + viewSeconds); 179 | } 180 | } 181 | 182 | private void computerMinScaleFactor() { 183 | int width = getMeasuredWidth(); 184 | 185 | if (mWaveFormInfo == null || width <= 0) { 186 | return; 187 | } 188 | mMinScale = (float) width / mWaveFormInfo.getLength(); 189 | mScale = verifyScale(mScale); 190 | } 191 | 192 | // 计算 缩放的时间间距。 根据 sampleRate 和 samplesPerPixel 计算合适的区间内，选择最小秒(1s ,2s,5s,10s,20s,30s) 193 | private int getSecondScale(int sampleRate, int samplesPerPixel) { 194 | int baseSecs = 1; // seconds 195 | int index = 0; 196 | int second; 197 | while (true) { 198 | second = baseSecs * SECOND_STEPS[index]; 199 | int pixels = WaveUtil.secondsToPixels(second, sampleRate, samplesPerPixel, mScale); 200 | if (pixels < mTimeLabelMinSpace) { 201 | if (index++ == SECOND_STEPS.length) { 202 | baseSecs *= 60; // seconds -> minutes -> hours 203 | index = 0; 204 | } 205 | } else { 206 | // Spacing OK 207 | break; 208 | } 209 | } 210 | return second; 211 | } 212 | 213 | @Override public void onDrag(float dx, float dy) { 214 | if (mWaveFormInfo == null || mScaleDragDetector.isScaling()) { 215 | return; 216 | } 217 | 218 | int sampleRate = mWaveFormInfo.getSample_rate(); 219 | int samplesPerPixel = mWaveFormInfo.getSamples_per_pixel(); 220 | 221 | if (dx == 0) { 222 | return; 223 | } 224 | 225 | double dxSeconds = WaveUtil.pixelsToSeconds(-dx, sampleRate, samplesPerPixel, mScale); 226 | double viewSeconds = 227 | WaveUtil.pixelsToSeconds(getMeasuredWidth(), sampleRate, samplesPerPixel, mScale); 228 | mStartSecond += dxSeconds; 229 | if (mStartSecond + viewSeconds > mTotalSecond) { 230 | mStartSecond = mTotalSecond - viewSeconds; 231 | } 232 | if (mStartSecond < 0) { 233 | mStartSecond = 0d; 234 | } 235 | 236 | if (mWaveFormListener != null) { 237 | mWaveFormListener.onScrollChanged(mStartSecond, mStartSecond + viewSeconds); 238 | } 239 | 240 | invalidate(); 241 | } 242 | 243 | @Override public void onFling(float startX, float startY, float velocityX, float velocityY) { 244 | mCurrentFlingRunnable = new FlingRunnable(getContext()); 245 | mCurrentFlingRunnable.fling((int) startX, (int) velocityX); 246 | post(mCurrentFlingRunnable); 247 | } 248 | 249 | private double mLastStartSecond; 250 | private boolean mResetScaleStartSecond; 251 | 252 | @Override public void onScaleBegin() { 253 | mResetScaleStartSecond = true; 254 | } 255 | 256 | @Override public void onScale(float scaleFactor, float focusX, float focusY) { 257 | 258 | if (mWaveFormInfo == null) { 259 | return; 260 | } 261 | float tempScale = verifyScale(mScale * scaleFactor); 262 | 263 | if (tempScale != mScale) { 264 | mScale = tempScale; 265 | int sampleRate = mWaveFormInfo.getSample_rate(); 266 | int samplesPerPixel = mWaveFormInfo.getSamples_per_pixel(); 267 | float dx = focusX - (focusX - 0) * mScale; 268 | double ds = WaveUtil.pixelsToSeconds(dx, sampleRate, samplesPerPixel, mScale); 269 | if (mResetScaleStartSecond) { 270 | mLastStartSecond = mStartSecond + ds; 271 | mResetScaleStartSecond = false; 272 | } 273 | 274 | mStartSecond = verifyStartSecond(mLastStartSecond - ds, sampleRate, samplesPerPixel); 275 | 276 | if (mWaveFormListener != null) { 277 | double viewSeconds = 278 | WaveUtil.pixelsToSeconds(getMeasuredWidth(), sampleRate, samplesPerPixel, 279 | mScale); 280 | mWaveFormListener.onScrollChanged(mStartSecond, mStartSecond + viewSeconds); 281 | } 282 | 283 | invalidate(); 284 | } 285 | } 286 | 287 | @Override public void onScaleEnd() { 288 | if (mWaveFormInfo == null) { 289 | return; 290 | } 291 | mStartSecond = verifyStartSecond(mStartSecond, mWaveFormInfo.getSample_rate(), 292 | mWaveFormInfo.getSamples_per_pixel()); 293 | invalidate(); 294 | } 295 | 296 | public void setScale(float scale) { 297 | if (mWaveFormInfo == null) { 298 | return; 299 | } 300 | int sampleRate = mWaveFormInfo.getSample_rate(); 301 | int samplesPerPixel = mWaveFormInfo.getSamples_per_pixel(); 302 | 303 | float tempScale = verifyScale(scale); 304 | if (mScale != tempScale) { 305 | mScale = tempScale; 306 | mStartSecond = verifyStartSecond(mStartSecond, sampleRate, samplesPerPixel); 307 | if (mWaveFormListener != null) { 308 | double viewSeconds = 309 | WaveUtil.pixelsToSeconds(getMeasuredWidth(), sampleRate, samplesPerPixel, 310 | mScale); 311 | mWaveFormListener.onScrollChanged(mStartSecond, mStartSecond + viewSeconds); 312 | } 313 | invalidate(); 314 | } 315 | } 316 | 317 | public void setScale(float scale, float focusX, boolean animate) { 318 | if (mWaveFormInfo == null) { 319 | return; 320 | } 321 | 322 | if (animate) { 323 | mAnimatedZoomRunnable = new AnimatedZoomRunnable(mScale, scale, focusX); 324 | post(mAnimatedZoomRunnable); 325 | } else { 326 | setScale(scale); 327 | } 328 | } 329 | 330 | private double verifyStartSecond(double startSecond, int sampleRate, int samplesPerPixel) { 331 | double viewSeconds = 332 | WaveUtil.pixelsToSeconds(getMeasuredWidth(), sampleRate, samplesPerPixel, mScale); 333 | if (startSecond + viewSeconds > mTotalSecond) { 334 | startSecond = mTotalSecond - viewSeconds; 335 | } 336 | if (startSecond < 0) { 337 | startSecond = 0d; 338 | } 339 | 340 | return startSecond; 341 | } 342 | 343 | private float verifyScale(float scale) { 344 | if (scale < mMinScale) { 345 | scale = mMinScale; 346 | } else if (scale > mMaxScale) { 347 | scale = mMaxScale; 348 | } 349 | 350 | float smokeWidth = (int) Math.ceil(scale); 351 | smokeWidth = smokeWidth < 0 ? 0 : smokeWidth; 352 | mWaveFormPaint.setStrokeWidth(smokeWidth); 353 | return scale; 354 | } 355 | 356 | @Override public boolean onTouchEvent(MotionEvent event) { 357 | 358 | int action = event.getActionMasked(); 359 | switch (action) { 360 | case MotionEvent.ACTION_DOWN: { 361 | ViewParent parent = getParent(); 362 | if (parent != null) { 363 | parent.requestDisallowInterceptTouchEvent(true); 364 | } 365 | cancelFling(); 366 | cancelAnimation(); 367 | } 368 | break; 369 | case MotionEvent.ACTION_UP: 370 | case MotionEvent.ACTION_CANCEL: { 371 | ViewParent parent = getParent(); 372 | if (parent != null) { 373 | parent.requestDisallowInterceptTouchEvent(false); 374 | } 375 | } 376 | break; 377 | } 378 | 379 | boolean handled = mScaleDragDetector.onTouchEvent(event); 380 | if (mGestureDetector.onTouchEvent(event)) { 381 | handled = true; 382 | } 383 | return handled; 384 | } 385 | 386 | @Override protected void onDetachedFromWindow() { 387 | cancelFling(); 388 | cancelAnimation(); 389 | super.onDetachedFromWindow(); 390 | } 391 | 392 | @Override protected void onDraw(Canvas canvas) { 393 | super.onDraw(canvas); 394 | 395 | if (mWaveFormInfo == null) { 396 | return; 397 | } 398 | drawWave(canvas, mWaveFormInfo); 399 | drawTimeLabel(canvas, mWaveFormInfo); 400 | } 401 | 402 | private void drawWave(Canvas canvas, @NonNull WaveFormInfo info) { 403 | 404 | int width = getMeasuredWidth(); 405 | int height = getMeasuredHeight(); 406 | 407 | int sampleRate = info.getSample_rate(); 408 | int samplesPerPixel = info.getSamples_per_pixel(); 409 | List data = info.getData(); 410 | int dataLength = info.getLength(); 411 | boolean is8Bit = info.getBits() == 8; 412 | 413 | // 改变 x 的 叠加值，放大或缩小波形 414 | 415 | int startTimePixel = (int) (mStartSecond * sampleRate / samplesPerPixel); 416 | 417 | int dataPixel = startTimePixel; 418 | float axisX = 0; 419 | int finalAxisX = -1; 420 | int low; 421 | int high; 422 | int lowY; 423 | int highY; 424 | 425 | while (axisX < width) { 426 | if (dataPixel < 0 || dataPixel >= dataLength) { 427 | break; 428 | } 429 | 430 | int nearestAxisX = (int) axisX; 431 | if (nearestAxisX != finalAxisX) { 432 | finalAxisX = nearestAxisX; 433 | low = (is8Bit ? data.get(dataPixel * 2) * 256 : data.get(dataPixel * 2)) + 32768; 434 | high = (is8Bit ? data.get(dataPixel * 2 + 1) * 256 : data.get(dataPixel * 2 + 1)) 435 | + 32768; 436 | lowY = height - low * height / 65536; 437 | highY = height - high * height / 65536; 438 | canvas.drawLine(finalAxisX, lowY, finalAxisX, highY, mWaveFormPaint); 439 | } 440 | 441 | axisX += mScale; 442 | dataPixel++; 443 | } 444 | } 445 | 446 | private void drawTimeLabel(Canvas canvas, @NonNull WaveFormInfo info) { 447 | int sampleRate = info.getSample_rate(); 448 | int samplesPerPixel = info.getSamples_per_pixel(); 449 | 450 | int width = getMeasuredWidth(); 451 | 452 | int intervalSecond = getSecondScale(sampleRate, samplesPerPixel); 453 | 454 | // 第一轴标时间戳 455 | int firstAxisLabelSecond = WaveUtil.roundUpToNearest(mStartSecond, intervalSecond); 456 | 457 | // 第一轴标时间戳与起始时间戳的时间差 458 | double firstAxisLabelOffsetSecond = firstAxisLabelSecond - mStartSecond; 459 | 460 | // 起始点到第一轴标时间戳的距离 461 | int firstAxisLabelOffsetWidth = 462 | WaveUtil.secondsToPixels(firstAxisLabelOffsetSecond, sampleRate, samplesPerPixel, 463 | mScale); 464 | 465 | int second = firstAxisLabelSecond; 466 | 467 | while (true) { 468 | int x = firstAxisLabelOffsetWidth + WaveUtil.secondsToPixels( 469 | (second - firstAxisLabelSecond), sampleRate, samplesPerPixel, mScale); 470 | if (x >= width) { 471 | break; 472 | } 473 | 474 | if (second != 0) { 475 | canvas.drawLine(x, 0, x, mTimeLabelHeight, mTimeLabelPaint); 476 | String timeString = second + "s"; 477 | float timeWidth = mTimeTextPaint.measureText(timeString); 478 | canvas.drawText(timeString, x - timeWidth / 2f, mTimeLabelHeight + mTimeTextHeight, 479 | mTimeTextPaint); 480 | } 481 | second += intervalSecond; 482 | } 483 | } 484 | 485 | private void cancelFling() { 486 | if (mCurrentFlingRunnable != null) { 487 | mCurrentFlingRunnable.cancelFling(); 488 | mCurrentFlingRunnable = null; 489 | } 490 | } 491 | 492 | private void cancelAnimation() { 493 | if (mAnimatedZoomRunnable != null) { 494 | mAnimatedZoomRunnable.cancel(); 495 | mAnimatedZoomRunnable = null; 496 | } 497 | } 498 | 499 | public void setWaveFormListener(@Nullable WaveFormListener waveFormListener) { 500 | mWaveFormListener = waveFormListener; 501 | } 502 | 503 | public void setStartTime(double startSecond) { 504 | mStartSecond = startSecond; 505 | 506 | if (mWaveFormInfo != null) { 507 | if (mWaveFormListener != null) { 508 | double viewSeconds = 509 | WaveUtil.pixelsToSeconds(getMeasuredWidth(), mWaveFormInfo.getSample_rate(), 510 | mWaveFormInfo.getSamples_per_pixel(), mScale); 511 | mWaveFormListener.onScrollChanged(mStartSecond, mStartSecond + viewSeconds); 512 | } 513 | 514 | invalidate(); 515 | } 516 | } 517 | 518 | private class FlingRunnable implements Runnable { 519 | private final ScrollerCompat scroller; 520 | private int tempStartX; 521 | 522 | public FlingRunnable(Context context) { 523 | scroller = ScrollerCompat.create(context); 524 | } 525 | 526 | public void fling(int startX, int velocityX) { 527 | if (mWaveFormInfo == null) { 528 | return; 529 | } 530 | int sampleRate = mWaveFormInfo.getSample_rate(); 531 | int samplesPerPixel = mWaveFormInfo.getSamples_per_pixel(); 532 | int totalPixels = (int) (mWaveFormInfo.getLength() * mScale); 533 | 534 | int minPixels = startX; 535 | if (minPixels < 0) { 536 | minPixels = 0; 537 | } 538 | 539 | int maxPixels = totalPixels - (getMeasuredWidth() - startX); 540 | if (maxPixels < 0) { 541 | maxPixels = 0; 542 | } 543 | 544 | tempStartX = startX; 545 | int flingStartX = 546 | WaveUtil.secondsToPixels(mStartSecond, sampleRate, samplesPerPixel, mScale) 547 | + startX; 548 | scroller.fling(flingStartX, 0, velocityX, 0, minPixels, maxPixels, 0, 0); 549 | } 550 | 551 | @Override public void run() { 552 | if (scroller.isFinished() || mWaveFormInfo == null) { 553 | return; 554 | } 555 | 556 | if (scroller.computeScrollOffset()) { 557 | final int currentX = scroller.getCurrX(); 558 | 559 | int sampleRate = mWaveFormInfo.getSample_rate(); 560 | int samplesPerPixel = mWaveFormInfo.getSamples_per_pixel(); 561 | 562 | double startSecond = 563 | WaveUtil.pixelsToSeconds(currentX - tempStartX, sampleRate, samplesPerPixel, 564 | mScale); 565 | if (startSecond < 0) { 566 | startSecond = 0; 567 | } 568 | 569 | if (mStartSecond != startSecond) { 570 | mStartSecond = startSecond; 571 | if (mWaveFormListener != null) { 572 | double viewSeconds = 573 | WaveUtil.pixelsToSeconds(getMeasuredWidth(), sampleRate, 574 | samplesPerPixel, mScale); 575 | mWaveFormListener.onScrollChanged(mStartSecond, mStartSecond + viewSeconds); 576 | } 577 | 578 | invalidate(); 579 | } 580 | postOnAnimationCompat(this); 581 | } 582 | } 583 | 584 | public void cancelFling() { 585 | scroller.abortAnimation(); 586 | } 587 | } 588 | 589 | private class AnimatedZoomRunnable implements Runnable { 590 | private static final long ZOOM_DURATION = 200L; 591 | private final float focalX; 592 | private final long startTime; 593 | private final float startScale, targetScale; 594 | private boolean canceled; 595 | private final Interpolator scaleInterpolator = new AccelerateDecelerateInterpolator(); 596 | 597 | public AnimatedZoomRunnable(final float startScale, final float targetScale, 598 | final float focalX) { 599 | startTime = System.currentTimeMillis(); 600 | this.focalX = focalX; 601 | this.startScale = startScale; 602 | this.targetScale = targetScale; 603 | 604 | onScaleBegin(); 605 | } 606 | 607 | @Override public void run() { 608 | float t = interpolate(); 609 | float scale = startScale + t * (targetScale - startScale); 610 | float deltaScale = scale / mScale; 611 | 612 | onScale(deltaScale, focalX, 0); 613 | if (t < 1f && !canceled) { 614 | postOnAnimationCompat(this); 615 | } else { 616 | onScaleEnd(); 617 | } 618 | } 619 | 620 | public void cancel() { 621 | canceled = true; 622 | } 623 | 624 | private float interpolate() { 625 | float t = 1f * (System.currentTimeMillis() - startTime) / ZOOM_DURATION; 626 | t = Math.min(1f, t); 627 | t = scaleInterpolator.getInterpolation(t); 628 | return t; 629 | } 630 | } 631 | 632 | private void postOnAnimationCompat(Runnable runnable) { 633 | if (Build.VERSION.SDK_INT >= 16) { 634 | postOnAnimation(runnable); 635 | } else { 636 | postDelayed(runnable, 16L); 637 | } 638 | } 639 | } 640 | -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/WaveUtil.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform; 2 | 3 | public class WaveUtil { 4 | 5 | public static double dataPixelsToSecond(int dataPixels, int sampleRate, int samplesPerPixel) { 6 | return (double) dataPixels * samplesPerPixel / sampleRate; 7 | } 8 | 9 | public static int secondsToPixels(double seconds, int sampleRate, int samplesPerPixel, 10 | float scale) { 11 | return (int) (seconds * sampleRate / samplesPerPixel * scale); 12 | } 13 | 14 | public static double pixelsToSeconds(float pixels, int sampleRate, int samplesPerPixel, float scale) { 15 | return pixels * samplesPerPixel / (sampleRate * scale); 16 | } 17 | 18 | // value 向下取整, 并且是 multiple 的倍数 19 | public static int roundDownToNearest(double value, int multiple) { 20 | if (multiple == 0) { 21 | return 0; 22 | } 23 | return multiple * (int) (value / multiple); 24 | } 25 | 26 | // value 向上取整, 并且是 multiple 的倍数 27 | // e.g: roundUpToNearest(5.5, 3) returns 6 （3的倍数） 28 | // roundUpToNearest(141.0, 10) returns 150 （10的倍数） 29 | // roundUpToNearest(-5.5, 3) returns -6 30 | public static int roundUpToNearest(double value, int multiple) { 31 | if (multiple == 0) { 32 | return 0; 33 | } 34 | 35 | int multiplier = 1; 36 | if (value < 0.0) { 37 | multiplier = -1; 38 | value = -value; 39 | } 40 | int rounded_up = (int) (Math.ceil(value)); 41 | return multiplier * ((rounded_up + multiple - 1) / multiple) * multiple; 42 | } 43 | 44 | 45 | 46 | } 47 | -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/gesture/DragDetector.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform.gesture; 2 | 3 | import android.content.Context; 4 | import android.graphics.RectF; 5 | import android.view.MotionEvent; 6 | import android.view.ViewConfiguration; 7 | 8 | public class DragDetector { 9 | 10 | private static final int INVALID_POINTER_ID = -1; 11 | 12 | private final float mTouchSlop; 13 | private boolean mIsDragging; 14 | private float mLastTouchX; 15 | private float mLastTouchY; 16 | private int mActivePointerId = INVALID_POINTER_ID; 17 | private int mActivePointerIndex = 0; 18 | private OnDragGestureListener mOnDragGestureListener; 19 | 20 | public DragDetector(Context context, OnDragGestureListener dragGestureListener) { 21 | final ViewConfiguration configuration = ViewConfiguration.get(context); 22 | mTouchSlop = configuration.getScaledTouchSlop(); 23 | mOnDragGestureListener = dragGestureListener; 24 | } 25 | 26 | public boolean isDragging() { 27 | return mIsDragging; 28 | } 29 | 30 | private float getActiveX(MotionEvent ev) { 31 | try { 32 | return ev.getX(mActivePointerIndex); 33 | //return MotionEventCompat.getX(ev, mActivePointerIndex); 34 | } catch (Exception e) { 35 | return ev.getX(); 36 | } 37 | } 38 | 39 | private float getActiveY(MotionEvent ev) { 40 | try { 41 | return ev.getY(mActivePointerIndex); 42 | //return MotionEventCompat.getY(ev, mActivePointerIndex); 43 | } catch (Exception e) { 44 | return ev.getY(); 45 | } 46 | } 47 | 48 | public boolean onTouchEvent(MotionEvent ev) { 49 | final int action = ev.getActionMasked(); 50 | //final int action = MotionEventCompat.getActionMasked(ev); 51 | onTouchActivePointer(action, ev); 52 | onTouchDragEvent(action, ev); 53 | return true; 54 | } 55 | 56 | private void onTouchActivePointer(int action, MotionEvent ev) { 57 | switch (action) { 58 | case MotionEvent.ACTION_DOWN: 59 | mActivePointerId = ev.getPointerId(0); 60 | break; 61 | case MotionEvent.ACTION_CANCEL: 62 | case MotionEvent.ACTION_UP: 63 | mActivePointerId = INVALID_POINTER_ID; 64 | break; 65 | case MotionEvent.ACTION_POINTER_UP: 66 | //final int pointerIndex = MotionEventCompat.getActionIndex(ev); 67 | //final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex); 68 | final int pointerIndex = ev.getActionIndex(); 69 | final int pointerId = ev.getPointerId(pointerIndex); 70 | 71 | if (pointerId == mActivePointerId) { 72 | final int newPointerIndex = (pointerIndex == 0) ? 1 : 0; 73 | mActivePointerId = ev.getPointerId(newPointerIndex); 74 | mLastTouchX = ev.getX(newPointerIndex); 75 | mLastTouchY = ev.getY(newPointerIndex); 76 | } 77 | break; 78 | } 79 | 80 | mActivePointerIndex = 81 | ev.findPointerIndex(mActivePointerId != INVALID_POINTER_ID ? mActivePointerId : 0); 82 | } 83 | 84 | private void onTouchDragEvent(int action, MotionEvent ev) { 85 | switch (action) { 86 | case MotionEvent.ACTION_DOWN: { 87 | mLastTouchX = getActiveX(ev); 88 | mLastTouchY = getActiveY(ev); 89 | 90 | mIsDragging = false; 91 | break; 92 | } 93 | 94 | case MotionEvent.ACTION_MOVE: { 95 | final float x = getActiveX(ev); 96 | final float y = getActiveY(ev); 97 | final float dx = x - mLastTouchX, dy = y - mLastTouchY; 98 | 99 | if (!mIsDragging) { 100 | mIsDragging = mEnableRect.contains(mLastTouchX, mLastTouchY) 101 | && Math.sqrt((dx * dx) + (dy * dy)) >= mTouchSlop; 102 | } 103 | 104 | if (mIsDragging) { 105 | mOnDragGestureListener.onDrag(dx, dy); 106 | mLastTouchX = x; 107 | mLastTouchY = y; 108 | } 109 | break; 110 | } 111 | case MotionEvent.ACTION_CANCEL: { 112 | break; 113 | } 114 | } 115 | } 116 | 117 | private RectF mEnableRect = new RectF(); 118 | 119 | public void setEnableRect(float left, float top, float right, float bottom) { 120 | mEnableRect.set(left, top, right, bottom); 121 | } 122 | } -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/gesture/OnDragGestureListener.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform.gesture; 2 | 3 | public interface OnDragGestureListener { 4 | void onDrag(float dx, float dy); 5 | } -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/gesture/OnScaleDragGestureListener.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform.gesture; 2 | 3 | public interface OnScaleDragGestureListener { 4 | void onDrag(float dx, float dy); 5 | 6 | void onFling(float startX, float startY, float velocityX, float velocityY); 7 | 8 | void onScaleBegin(); 9 | 10 | void onScale(float scaleFactor, float focusX, float focusY); 11 | 12 | void onScaleEnd(); 13 | } -------------------------------------------------------------------------------- /WaveFormView/src/main/java/me/relex/widget/waveform/gesture/ScaleDragDetector.java: -------------------------------------------------------------------------------- 1 | package me.relex.widget.waveform.gesture; 2 | 3 | import android.content.Context; 4 | import android.view.MotionEvent; 5 | import android.view.ScaleGestureDetector; 6 | import android.view.VelocityTracker; 7 | import android.view.ViewConfiguration; 8 | 9 | public class ScaleDragDetector implements ScaleGestureDetector.OnScaleGestureListener { 10 | 11 | private static final int INVALID_POINTER_ID = -1; 12 | 13 | private final float mTouchSlop; 14 | private final float mMinimumVelocity; 15 | private final ScaleGestureDetector mScaleDetector; 16 | private final OnScaleDragGestureListener mScaleDragGestureListener; 17 | 18 | private VelocityTracker mVelocityTracker; 19 | private boolean mIsDragging; 20 | private float mLastTouchX; 21 | private float mLastTouchY; 22 | private int mActivePointerId = INVALID_POINTER_ID; 23 | private int mActivePointerIndex = 0; 24 | 25 | public ScaleDragDetector(Context context, OnScaleDragGestureListener scaleDragGestureListener) { 26 | mScaleDetector = new ScaleGestureDetector(context, this); 27 | mScaleDragGestureListener = scaleDragGestureListener; 28 | 29 | final ViewConfiguration configuration = ViewConfiguration.get(context); 30 | mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 31 | mTouchSlop = configuration.getScaledTouchSlop(); 32 | } 33 | 34 | @Override public boolean onScale(ScaleGestureDetector detector) { 35 | float scaleFactor = detector.getScaleFactor(); 36 | 37 | if (Float.isNaN(scaleFactor) || Float.isInfinite(scaleFactor)) { 38 | return false; 39 | } 40 | 41 | mScaleDragGestureListener.onScale(scaleFactor, detector.getFocusX(), detector.getFocusY()); 42 | return true; 43 | } 44 | 45 | @Override public boolean onScaleBegin(ScaleGestureDetector detector) { 46 | mScaleDragGestureListener.onScaleBegin(); 47 | return true; 48 | } 49 | 50 | @Override public void onScaleEnd(ScaleGestureDetector detector) { 51 | mScaleDragGestureListener.onScaleEnd(); 52 | } 53 | 54 | public boolean isScaling() { 55 | return mScaleDetector.isInProgress(); 56 | } 57 | 58 | public boolean isDragging() { 59 | return mIsDragging; 60 | } 61 | 62 | private float getActiveX(MotionEvent ev) { 63 | try { 64 | 65 | return ev.getX(mActivePointerIndex); 66 | 67 | //return MotionEventCompat.getX(ev, mActivePointerIndex); 68 | } catch (Exception e) { 69 | return ev.getX(); 70 | } 71 | } 72 | 73 | private float getActiveY(MotionEvent ev) { 74 | try { 75 | return ev.getY(mActivePointerIndex); 76 | //return MotionEventCompat.getY(ev, mActivePointerIndex); 77 | } catch (Exception e) { 78 | return ev.getY(); 79 | } 80 | } 81 | 82 | public boolean onTouchEvent(MotionEvent ev) { 83 | mScaleDetector.onTouchEvent(ev); 84 | final int action = ev.getActionMasked(); 85 | //final int action = MotionEventCompat.getActionMasked(ev); 86 | onTouchActivePointer(action, ev); 87 | onTouchDragEvent(action, ev); 88 | return true; 89 | } 90 | 91 | private void onTouchActivePointer(int action, MotionEvent ev) { 92 | switch (action) { 93 | case MotionEvent.ACTION_DOWN: 94 | mActivePointerId = ev.getPointerId(0); 95 | break; 96 | case MotionEvent.ACTION_CANCEL: 97 | case MotionEvent.ACTION_UP: 98 | mActivePointerId = INVALID_POINTER_ID; 99 | break; 100 | case MotionEvent.ACTION_POINTER_UP: 101 | //final int pointerIndex = MotionEventCompat.getActionIndex(ev); 102 | //final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex); 103 | 104 | final int pointerIndex = ev.getActionIndex(); 105 | final int pointerId = ev.getPointerId(pointerIndex); 106 | 107 | if (pointerId == mActivePointerId) { 108 | final int newPointerIndex = (pointerIndex == 0) ? 1 : 0; 109 | mActivePointerId = ev.getPointerId(newPointerIndex); 110 | mLastTouchX = ev.getX(newPointerIndex); 111 | mLastTouchY = ev.getY(newPointerIndex); 112 | } 113 | 114 | break; 115 | } 116 | 117 | mActivePointerIndex = 118 | ev.findPointerIndex(mActivePointerId != INVALID_POINTER_ID ? mActivePointerId : 0); 119 | } 120 | 121 | private void onTouchDragEvent(int action, MotionEvent ev) { 122 | switch (action) { 123 | case MotionEvent.ACTION_DOWN: { 124 | mVelocityTracker = VelocityTracker.obtain(); 125 | if (null != mVelocityTracker) { 126 | mVelocityTracker.addMovement(ev); 127 | } 128 | 129 | mLastTouchX = getActiveX(ev); 130 | mLastTouchY = getActiveY(ev); 131 | mIsDragging = false; 132 | break; 133 | } 134 | 135 | case MotionEvent.ACTION_MOVE: { 136 | final float x = getActiveX(ev); 137 | final float y = getActiveY(ev); 138 | final float dx = x - mLastTouchX, dy = y - mLastTouchY; 139 | 140 | if (!mIsDragging) { 141 | mIsDragging = Math.sqrt((dx * dx) + (dy * dy)) >= mTouchSlop; 142 | } 143 | 144 | if (mIsDragging) { 145 | mScaleDragGestureListener.onDrag(dx, dy); 146 | mLastTouchX = x; 147 | mLastTouchY = y; 148 | 149 | if (null != mVelocityTracker) { 150 | mVelocityTracker.addMovement(ev); 151 | } 152 | } 153 | break; 154 | } 155 | 156 | case MotionEvent.ACTION_CANCEL: { 157 | if (null != mVelocityTracker) { 158 | mVelocityTracker.recycle(); 159 | mVelocityTracker = null; 160 | } 161 | break; 162 | } 163 | 164 | case MotionEvent.ACTION_UP: { 165 | if (mIsDragging) { 166 | if (null != mVelocityTracker) { 167 | mLastTouchX = getActiveX(ev); 168 | mLastTouchY = getActiveY(ev); 169 | 170 | mVelocityTracker.addMovement(ev); 171 | mVelocityTracker.computeCurrentVelocity(1000); 172 | 173 | final float vX = mVelocityTracker.getXVelocity(), vY = 174 | mVelocityTracker.getYVelocity(); 175 | 176 | if (Math.max(Math.abs(vX), Math.abs(vY)) >= mMinimumVelocity) { 177 | mScaleDragGestureListener.onFling(mLastTouchX, mLastTouchY, -vX, -vY); 178 | } 179 | } 180 | } 181 | if (null != mVelocityTracker) { 182 | mVelocityTracker.recycle(); 183 | mVelocityTracker = null; 184 | } 185 | break; 186 | } 187 | } 188 | } 189 | } -------------------------------------------------------------------------------- /WaveFormView/src/main/res/values/attrs.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 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 24 5 | buildToolsVersion "24.0.3" 6 | defaultConfig { 7 | applicationId "me.relex.waveform" 8 | minSdkVersion 14 9 | targetSdkVersion 24 10 | versionCode 1 11 | versionName "1.0" 12 | } 13 | buildTypes { 14 | release { 15 | minifyEnabled false 16 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 17 | } 18 | } 19 | } 20 | 21 | dependencies { 22 | compile 'com.android.support:appcompat-v7:24.2.1' 23 | compile 'com.alibaba:fastjson:1.1.55.android' 24 | compile project(':WaveFormView') 25 | } 26 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /Users/relex/android-sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /app/src/main/java/me/relex/waveformdemo/MainActivity.java: -------------------------------------------------------------------------------- 1 | package me.relex.waveformdemo; 2 | 3 | import android.os.AsyncTask; 4 | import android.os.Bundle; 5 | import android.support.v7.app.AppCompatActivity; 6 | import com.alibaba.fastjson.JSON; 7 | import java.io.IOException; 8 | import java.io.InputStream; 9 | import me.relex.widget.waveform.WaveFormInfo; 10 | import me.relex.widget.waveform.WaveFormListener; 11 | import me.relex.widget.waveform.WaveFormThumbView; 12 | import me.relex.widget.waveform.WaveFormView; 13 | 14 | public class MainActivity extends AppCompatActivity { 15 | 16 | private WaveFormView mWaveFormView; 17 | private WaveFormThumbView mWaveFormThumbView; 18 | 19 | @Override protected void onCreate(Bundle savedInstanceState) { 20 | super.onCreate(savedInstanceState); 21 | setContentView(R.layout.activity_main); 22 | 23 | mWaveFormView = (WaveFormView) findViewById(R.id.wave_form_view); 24 | mWaveFormView.setWaveFormListener(new WaveFormListener() { 25 | @Override public void onScrollChanged(double startTime, double endTime) { 26 | mWaveFormThumbView.updateThumb(startTime, endTime); 27 | } 28 | }); 29 | 30 | mWaveFormThumbView = (WaveFormThumbView) findViewById(R.id.wave_form_thumb_view); 31 | mWaveFormThumbView.setOnDragThumbListener(new WaveFormThumbView.OnDragThumbListener() { 32 | @Override public void onDrag(double startTime) { 33 | mWaveFormView.setStartTime(startTime); 34 | } 35 | }); 36 | 37 | new ReaderTask() { 38 | @Override protected void onPostExecute(WaveFormInfo waveFormInfo) { 39 | mWaveFormThumbView.setWave(waveFormInfo); // Must be first. 40 | mWaveFormView.setWave(waveFormInfo); 41 | } 42 | }.execute(); 43 | } 44 | 45 | public class ReaderTask extends AsyncTask { 46 | 47 | @Override protected WaveFormInfo doInBackground(Void... params) { 48 | InputStream inputStream = null; 49 | try { 50 | inputStream = getResources().openRawResource(R.raw.waveform); 51 | byte[] data = new byte[inputStream.available()]; 52 | inputStream.read(data); 53 | return JSON.parseObject(data, WaveFormInfo.class); 54 | } catch (Exception e) { 55 | e.printStackTrace(); 56 | } finally { 57 | try { 58 | if (inputStream != null) { 59 | inputStream.close(); 60 | } 61 | } catch (IOException e) { 62 | e.printStackTrace(); 63 | } 64 | } 65 | return null; 66 | } 67 | } 68 | } 69 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 13 | 14 | 18 | 19 | 34 | 35 | 43 | 44 | 48 | 49 | 50 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ongakuer/WaveForm/3753daf66adc493297fab148d431a29f69550888/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ongakuer/WaveForm/3753daf66adc493297fab148d431a29f69550888/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ongakuer/WaveForm/3753daf66adc493297fab148d431a29f69550888/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ongakuer/WaveForm/3753daf66adc493297fab148d431a29f69550888/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ongakuer/WaveForm/3753daf66adc493297fab148d431a29f69550888/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #acba9d 4 | #749d9b 5 | #ffffff 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | WaveForm 3 | 4 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | jcenter() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:2.2.2' 9 | 10 | // NOTE: Do not place your application dependencies here; they belong 11 | // in the individual module build.gradle files 12 | } 13 | } 14 | 15 | allprojects { 16 | repositories { 17 | jcenter() 18 | } 19 | } 20 | 21 | task clean(type: Delete) { 22 | delete rootProject.buildDir 23 | } 24 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | org.gradle.jvmargs=-Xmx1536m 13 | 14 | # When configured, Gradle will run in incubating parallel mode. 15 | # This option should only be used with decoupled projects. More details, visit 16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 17 | # org.gradle.parallel=true 18 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ongakuer/WaveForm/3753daf66adc493297fab148d431a29f69550888/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Mon Dec 28 10:00:20 PST 2015 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-2.14.1-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # Attempt to set APP_HOME 46 | # Resolve links: $0 may be a link 47 | PRG="$0" 48 | # Need this for relative symlinks. 49 | while [ -h "$PRG" ] ; do 50 | ls=`ls -ld "$PRG"` 51 | link=`expr "$ls" : '.*-> \(.*\)$'` 52 | if expr "$link" : '/.*' > /dev/null; then 53 | PRG="$link" 54 | else 55 | PRG=`dirname "$PRG"`"/$link" 56 | fi 57 | done 58 | SAVED="`pwd`" 59 | cd "`dirname \"$PRG\"`/" >/dev/null 60 | APP_HOME="`pwd -P`" 61 | cd "$SAVED" >/dev/null 62 | 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 64 | 65 | # Determine the Java command to use to start the JVM. 66 | if [ -n "$JAVA_HOME" ] ; then 67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 68 | # IBM's JDK on AIX uses strange locations for the executables 69 | JAVACMD="$JAVA_HOME/jre/sh/java" 70 | else 71 | JAVACMD="$JAVA_HOME/bin/java" 72 | fi 73 | if [ ! -x "$JAVACMD" ] ; then 74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 75 | 76 | Please set the JAVA_HOME variable in your environment to match the 77 | location of your Java installation." 78 | fi 79 | else 80 | JAVACMD="java" 81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 82 | 83 | Please set the JAVA_HOME variable in your environment to match the 84 | location of your Java installation." 85 | fi 86 | 87 | # Increase the maximum file descriptors if we can. 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 89 | MAX_FD_LIMIT=`ulimit -H -n` 90 | if [ $? -eq 0 ] ; then 91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 92 | MAX_FD="$MAX_FD_LIMIT" 93 | fi 94 | ulimit -n $MAX_FD 95 | if [ $? -ne 0 ] ; then 96 | warn "Could not set maximum file descriptor limit: $MAX_FD" 97 | fi 98 | else 99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 100 | fi 101 | fi 102 | 103 | # For Darwin, add options to specify how the application appears in the dock 104 | if $darwin; then 105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 106 | fi 107 | 108 | # For Cygwin, switch paths to Windows format before running java 109 | if $cygwin ; then 110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 112 | JAVACMD=`cygpath --unix "$JAVACMD"` 113 | 114 | # We build the pattern for arguments to be converted via cygpath 115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 116 | SEP="" 117 | for dir in $ROOTDIRSRAW ; do 118 | ROOTDIRS="$ROOTDIRS$SEP$dir" 119 | SEP="|" 120 | done 121 | OURCYGPATTERN="(^($ROOTDIRS))" 122 | # Add a user-defined pattern to the cygpath arguments 123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 125 | fi 126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 127 | i=0 128 | for arg in "$@" ; do 129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 131 | 132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 134 | else 135 | eval `echo args$i`="\"$arg\"" 136 | fi 137 | i=$((i+1)) 138 | done 139 | case $i in 140 | (0) set -- ;; 141 | (1) set -- "$args0" ;; 142 | (2) set -- "$args0" "$args1" ;; 143 | (3) set -- "$args0" "$args1" "$args2" ;; 144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 150 | esac 151 | fi 152 | 153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 154 | function splitJvmOpts() { 155 | JVM_OPTS=("$@") 156 | } 157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 159 | 160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 161 | -------------------------------------------------------------------------------- /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 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 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 Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /screenshot.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ongakuer/WaveForm/3753daf66adc493297fab148d431a29f69550888/screenshot.gif -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app', ':WaveFormView' 2 | --------------------------------------------------------------------------------