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Android 长按弹出菜单栏,PopupMenu 菜单栏

互联网 diligentman 5天前 7次浏览

在Android中的SDK3.0版本以后加入了一个特殊的菜单效果,它可以在任何的View上显示,根据View的位置显示菜单效果。

Android 长按弹出菜单栏,PopupMenu 菜单栏

res/menu/menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/send" android:title="发送邮件"></item>
    <item android:id="@+id/look" android:title="阅读邮件"></item>
    <item android:id="@+id/delete" android:title="删除邮件"></item>
</menu>

MainActivity.java

package com.summergao.mypopupmenu;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
import android.view.View;
import android.widget.PopupMenu;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    private TextView tv1;
    private TextView tv2;
    private TextView tv3;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView() {
        tv1 = (TextView) findViewById(R.id.tv1);
        tv2 = (TextView) findViewById(R.id.tv2);
        tv3 = (TextView) findViewById(R.id.tv3);
        tv1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myPopupMenu(v);
            }
        });
        tv2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myPopupMenu(v);
            }
        });
        tv3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myPopupMenu(v);
            }
        });

    }

    private void myPopupMenu(View v) {
        //定义PopupMenu对象
        PopupMenu popupMenu = new PopupMenu(MainActivity.this, v);
        //设置PopupMenu对象的布局
        popupMenu.getMenuInflater().inflate(R.menu.menu, popupMenu.getMenu());
        //设置PopupMenu的点击事件
        popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                Toast.makeText(MainActivity.this, "点击了----" + item.getTitle(), Toast.LENGTH_SHORT).show();
                return true;
            }
        });
        //显示菜单
        popupMenu.show();
    }
}

 


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