我有一个可以拖动到屏幕上任何位置的视图，所以如果用户将它拖动到屏幕上。那么视图中的所有内容都只会被裁剪，我该如何实现呢？
我已经能够通过计算要裁剪的部分来进行裁剪，但是如果我想裁剪视图范围内的任何内容怎么办？
这是我的活动：
View views;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnCrop = (Button) findViewById(R.id.btnCrop);
imageView = (ImageView) findViewById(R.id.imageView);
views = (View) findViewById(R.id.view);
views.setOnTouchListener(new View.OnTouchListener() {
private int initialX;
private int initialY;
private float initialTouchX;
private float initialTouchY;
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
initialX = (int) views.getX();
initialY = (int) views.getY();
initialTouchX = event.getRawX();
initialTouchY = event.getRawY();
return true;
case MotionEvent.ACTION_MOVE:
views.setX(initialX + (int) (event.getRawX() - initialTouchX));
views.setY(initialY + (int) (event.getRawY() - initialTouchY));
return true;
}
return false;
}
});
btnCrop.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Bitmap croppedBmp = Bitmap.createBitmap(mbitmap, 0, 0,
mbitmap.getWidth(), mbitmap.getHeight() / 2);
imageView.setImageBitmap(croppedBmp);
}
});
}
public Bitmap getBitmapOFRootView(View v) {
View screenView = v.getRootView();
screenView.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(screenView.getDrawingCache());
screenView.setDrawingCacheEnabled(false);
return bitmap;
}
在此先感谢您提供有关可以做什么的任何帮助和见解！:D