[英]Action Bar - Drag Menu Item
我如何將OnTouchListener設置為操作欄菜單項,以添加從操作欄拖動某些項目的功能?
例如,如果我這樣做:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item android:id="@+id/my_menu_item_button"
android:icon="@android:drawable/ic_menu_mylocation"
android:title="TEST"
app:showAsAction="always" />
</menu>
並嘗試這樣做:
final MenuItem myMenuItem = (MenuItem) findViewById(R.id.action_search);
myMenuItem.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent me) {
return true;
}
});
我不能,因為setOnTouchListener需要視圖。
有什么解決辦法嗎?
這是骨架: https : //gist.github.com/anonymous/b654b67d4dbd45ce8539
View you can find easily by using menuItem.getActionView(), but I guess you get the action view as null if you have not set any custom view using MenuItem.setActionView().
Solution :
Lets create a layout file called sample_action_view.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_gravity="center_vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/mobile_link_action_bar_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:src="sampleImage.png"
android:contentDescription="Sample Image"/>
</LinearLayout>
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.menu_main, menu);
LayoutInflater inflater = (LayoutInflater)this.getApplicationContext().getSystemService
(Context.LAYOUT_INFLATER_SERVICE);
View sampleActionView = inflater.inflate(R.layout.sample_action_view, null);
MenuItem searchMenuItem = menu.findItem(R.id.menu_myDemoToolbarButton);
serachMenuItem.setActionView(sampleActionView);
sampleActionView.setOnTouchListener(new OnTouchListener()
{
@Override
public boolean onTouch(View v, MotionEvent event)
{
// TODO Auto-generated method stub
return false;
}
});
return super.onCreateOptionsMenu(menu);
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