以编程方式屏幕屏幕的某些部分
问题描述:
在我的应用程序中,我有一个矩形ImageView,其中包含一个从中间切出一个洞的白色背景。在它后面我设置了相机预览,所以只有孔显示相机。我怎么会拍一张IMAGEVIEW.X AND Y AND HEIGHT AND WIDTH
的照片,这样我仍然可以看到脸。基本上裁剪屏幕截图的大小imageview 以编程方式屏幕屏幕的某些部分
答
希望这会有所帮助。
private void takeScreenshot() {
Date now = new Date();
android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);
try {
// image naming and path to include sd card appending name you choose for file
String mPath = Environment.getExternalStorageDirectory().toString() + "/" + now + ".jpg";
// create bitmap screen capture
View v1 = getWindow().getDecorView().getRootView();
v1.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);
File imageFile = new File(mPath);
FileOutputStream outputStream = new FileOutputStream(imageFile);
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
outputStream.flush();
outputStream.close();
openScreenshot(imageFile);
} catch (Throwable e) {
// Several error may come out with file handling or OOM
e.printStackTrace();
}
}