主类:
package com.example.day02menu1;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
//新建
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.item,menu);
return true;
}
//监听事件
@Override
public boolean onOptionsItemSelected(MenuItem item) {
//当点击条目的时候
if(item.getItemId()==R.id.item){
Toast.makeText(this, "快传", Toast.LENGTH_SHORT).show();
}else if(item.getItemId()==R.id.item2){
Toast.makeText(this, "付款", Toast.LENGTH_SHORT).show();
}
return true;
}
}
创建menu->item的步骤:
效果:
menu->item:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<group
android:id="@+id/group">
<item
android:id="@+id/item"
android:title="面对面快传"
>
</item>
<item
android:id="@+id/item2"
android:title="付款"
>
</item>
</group>
</menu>