Android学习笔记菜单资源文件

创建菜单资源

menu_one.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/settings"
        android:title="@string/menu_title_settings"></item>
    <item android:id="@+id/regard"
        android:title="@string/menu_title_regard"></item>
</menu>

菜单资源的使用

MainActivity.java

//重写onCreateOptionsMenu，添加一个选项菜单
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        MenuInflater menuInflater = new MenuInflater(this);
        menuInflater.inflate(R.menu.menu_one,menu);
        return super.onCreateOptionsMenu(menu);
    }

    //重写onOptionsItemSelected()方法，
    // 指定各个菜单被选择时，所应做的处理
    public boolean onOptionsItemSelected(MenuItem item){
        switch (item.getItemId()){
            case R.id.settings:
                Intent intent = new Intent(MainActivity.this,SettingsActivity.class);
                startActivity(intent);
                break;
            case R.id.regard:
                Intent intent1 = new Intent(MainActivity.this,RegardActivity.class);
                startActivity(intent1);
                break;
        }
        return super.onOptionsItemSelected(item);
    }

效果: