wk1android - How to take a screenshot of a current Activity

button1.setOnClickListener(new View.OnClickListener() {
    @RequiresApi(api = Build.VERSION_CODES.R)
    @Override
    public void onClick(View view) {
        View view1 = getWindow().getDecorView();
        Bitmap bitmap = testViewSnapshot(view1);
        int width = bitmap.getWidth();
        int height = bitmap.getHeight();
        System.out.println("Bitmap weight = "+width+" Bitmap height "+height);
        Bitmap bitmap1 = Bitmap.createBitmap(bitmap, 0, 100, bitmap.getWidth() , bitmap.getHeight()/2);
        saveImageToGallery2(view.getContext(), bitmap1);
        //将bitMap保存到相册中
        //saveBitmap(bitmap);
        Toast.makeText(FirstActivity.this, "button1 Clicked.", Toast.LENGTH_SHORT).show();
    }
});


@RequiresApi(api = Build.VERSION_CODES.R)
public static void saveImageToGallery2(Context context, Bitmap image){
    Long mImageTime = System.currentTimeMillis();
    String imageDate = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date(mImageTime));
    String SCREENSHOT_FILE_NAME_TEMPLATE = "IMG%s.png";//图片名称，以"winetalk"+时间戳命名
    String mImageFileName = String.format(SCREENSHOT_FILE_NAME_TEMPLATE, imageDate);

    final ContentValues values = new ContentValues();
    values.put(MediaStore.MediaColumns.RELATIVE_PATH, Environment.DIRECTORY_DCIM
            + File.separator + "Camera"); //Environment.DIRECTORY_SCREENSHOTS:截图,图库中显示的文件夹名。"dh"
    values.put(MediaStore.MediaColumns.DISPLAY_NAME, mImageFileName);
    values.put(MediaStore.MediaColumns.MIME_TYPE, "image/jpg");
    values.put(MediaStore.MediaColumns.DATE_ADDED, mImageTime / 1000);
    values.put(MediaStore.MediaColumns.DATE_MODIFIED, mImageTime / 1000);
    values.put(MediaStore.MediaColumns.DATE_EXPIRES, DateUtils.SECOND_IN_MILLIS*5);
    System.out.println("xxxx"+(mImageTime + DateUtils.DAY_IN_MILLIS) / 1000);
    values.put(MediaStore.MediaColumns.IS_PENDING, 1);

    ContentResolver resolver = context.getContentResolver();
    final Uri uri = resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
    try {
        // First, write the actual data for our screenshot
        try (OutputStream out = resolver.openOutputStream(uri)) {
            if (!image.compress(Bitmap.CompressFormat.JPEG, 100, out)) {
                throw new IOException("Failed to compress");
            }
        }
        // Everything went well above, publish it!
        values.clear();
        values.put(MediaStore.MediaColumns.IS_PENDING, 0);
        // values.putNull(MediaStore.MediaColumns.DATE_EXPIRES);
        resolver.update(uri, values, null, null);
        Toast.makeText(context,"保存图片成功",
                Toast.LENGTH_SHORT).show();
    }catch (IOException e){
        resolver.delete(uri, null);
        Toast.makeText(context,"失败",
                Toast.LENGTH_SHORT).show();

    }
}