我正在寻找捕捉用户触摸事件的坐标(为此,我实现了onTouch
方法),但我也希望在用户触摸屏幕时显示上下文菜单。同时使用onTouch和onCreateContextMenu
当同时使用onTouch
和onCreateContextMenu
方法时,每个触摸事件都会发送到方法onTouch
。从不调用onCreateContextMenu
方法。我猜这是预期的。然后,我尝试通过在onTouch
方法中调用openContextMenu(v)
来手动显示上下文菜单,此方法可行,但在调用onContextItemSelected(MenuItem item)
后,菜单不会从屏幕消失。那我该如何做这项工作?
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.record_match);
myCourtView = new MyImageView(getApplicationContext());
ll = (LinearLayout)findViewById(R.id.linearLayout);
ll.addView(myCourtView, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
registerForContextMenu(myCourtView);
myCourtView.requestFocus();
myCourtView.setOnTouchListener(this);
}// End OnCreate
// Implement the OnClickListener callback
public boolean onTouch(View v, MotionEvent event) {
//do something when user interacts with the court view
myCourtView.processEvent(event);
openContextMenu(v);
myCourtView.invalidate();
return true;
}//End OnClickListener
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.shot_entry_menu, menu);
}//End onCreateContextMenu
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
switch (item.getItemId()) {
case R.id.player_1:
//do something
return true;
case R.id.player_2:
//do something else
return true;
}
return true;
}//End onContextItemSelected