Android - 没有截屏当前屏幕

Question

代码适用于第一个屏幕截图并保持相同的屏幕截图,无论移动到另一个视图.

如何获取当前截图？

public void saveBitmap(Bitmap bitmap) {

    File imagePath = new File(Environment.getExternalStorageDirectory() + "/" + new SimpleDateFormat("yyyyMMddhhmmss'.jpg'").format(new Date()) );
    FileOutputStream fos =null;
    try {
        fos = new FileOutputStream(imagePath);
        bitmap.compress(CompressFormat.JPEG, 100, fos);
        fos.flush();
        fos.close();
    } catch (FileNotFoundException e) {
        Log.e("GREC", e.getMessage(), e);
    } catch (IOException e) {
        Log.e("GREC", e.getMessage(), e);
    }
}

点击信息:

@Override
public void onClick(View v) {
    switch (v.getId()) {
    case R.id.iSave:
          Bitmap bitmap = null;
          bitmap = takeScreenshot();
          saveBitmap(bitmap);
        break;
    } 
}

这里:

public Bitmap takeScreenshot() {
   View rootView = findViewById(android.R.id.content).getRootView();
   rootView.setDrawingCacheEnabled(true);
   return rootView.getDrawingCache();
}

Answer 1

rootView.setDrawingCacheEnabled(false);拍摄屏幕后调用.将其关闭然后再打开会强制它正确更新.

public Bitmap takeScreenshot() {
   View rootView = findViewById(android.R.id.content).getRootView();
   rootView.setDrawingCacheEnabled(true);
   Bitmap bitmap = rootView.getDrawingCache();
   rootView.setDrawingCacheEnabled(false);
   return bitmap;
}