一个ImageView里面不能再包含另一个View,只有派生自ViewGroup的类才可以。然后,您可以将ImageView移动到另一个之上(取决于Z顺序),但不在里面。
这里是一个如何使用onTouch移动RelativeLayout中包含的所有视图的工作示例。我认为onDrag事件更适用于拖放数据项目,而不是移动视图。希望它会帮助
public class MainActivity extends AppCompatActivity implements View.OnTouchListener {
private RelativeLayout mRelLay;
private float mInitialX, mInitialY;
private int mInitialLeft, mInitialTop;
private View mMovingView = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRelLay = (RelativeLayout) findViewById(R.id.relativeLayout);
for (int i = 0; i < mRelLay.getChildCount(); i++)
mRelLay.getChildAt(i).setOnTouchListener(this);
}
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
RelativeLayout.LayoutParams mLayoutParams;
switch (motionEvent.getAction()) {
case MotionEvent.ACTION_DOWN:
mMovingView = view;
mLayoutParams = (RelativeLayout.LayoutParams) mMovingView.getLayoutParams();
mInitialX = motionEvent.getRawX();
mInitialY = motionEvent.getRawY();
mInitialLeft = mLayoutParams.leftMargin;
mInitialTop = mLayoutParams.topMargin;
break;
case MotionEvent.ACTION_MOVE:
if (mMovingView != null) {
mLayoutParams = (RelativeLayout.LayoutParams) mMovingView.getLayoutParams();
mLayoutParams.leftMargin = (int) (mInitialLeft + motionEvent.getRawX() - mInitialX);
mLayoutParams.topMargin = (int) (mInitialTop + motionEvent.getRawY() - mInitialY);
mMovingView.setLayoutParams(mLayoutParams);
}
break;
case MotionEvent.ACTION_UP:
mMovingView = null;
break;
}
return true;
}
}
感谢您的回答,但我的意思是它像[this](https://github.com/Humoule/DragDropApplication)一样大放异彩。无论如何,我已经做了我需要使用这个[教程](http://www.vogella.com/tutorials/AndroidDragAndDrop/article.html),并且像你说的“一个ImageView不能包含另一个视图里面” – justo