1 應用內截屏(無SurfaceView, TextureView)

boolean cacheEnable = captureView.isDrawingCacheEnabled();

captureView.setDrawingCacheEnabled(true);

captureView.buildDrawingCache();

Bitmap bitmap = captureView.getDrawingCache();

cache[0] = Bitmap.createBitmap(bitmap);

captureView.setDrawingCacheEnabled(cacheEnable);

2 應用內截屏.需要權限android.permission.READ_FRAME_BUFFER

Display display = ((WindowManager)captureView.getContext()

.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();

DisplayMetrics displayMetrics = new DisplayMetrics();

display.getRealMetrics(displayMetrics);

Bitmap bitmap = SurfaceControl.screenshot(displayMetrics.widthPixels,

displayMetrics.heightPixels);

3 Android 9.0

PixelCopy.request(window, bitmap, new PixelCopy.OnPixelCopyFinishedListener() {

@Override

public void onPixelCopyFinished(int copyResult){

if (PixelCopy.SUCCESS == copyResult) {

// onSuccessCallback(bitmap)

} else {

// one rrorCallback()

}

}

}, new Handler());

4 讀 framebuffer

String DEVICE_NAME = "/dev/graphics/fb0";

File deviceFile = new File(DEVICE_NAME);

Process localProcess = Runtime.getRuntime().exec("supersu");

String str = "cat " + deviceFile.getAbsolutePath() + "\n";

localProcess.getOutputStream().write(str.getBytes());

return localProcess.getInputStream();

5 拼接TextureView (TODO)

TangGeeA

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標簽：captureView,bitmap,截屏,displayMetrics,new,Android,Bitmap,方法,PixelCopy

來源： https://blog.csdn.net/woai110120130/article/details/104185482

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