Android ContextMenu上下文菜单

Windows鼠标右键菜单,Android选项长按弹出菜单
添加方式:静态xml/动态添加
menu/main.xml



    
  
    
    
    
    


MainActivity.java

import java.util.ArrayList;
import java.util.zip.Inflater;

import android.app.Activity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity {

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

    /**
     * 设置listview的显示内容
     */
    private void showListView() {
        ListView listview = (ListView) findViewById(R.id.listview);
        ArrayAdapter adapter = new ArrayAdapter(this,
                android.R.layout.simple_list_item_1, getData());
        listview.setAdapter(adapter);
        this.registerForContextMenu(listview);
    }
    @Override
    public void onCreateContextMenu(ContextMenu menu, View v,
            ContextMenuInfo menuInfo) {
        // TODO Auto-generated method stub
        super.onCreateContextMenu(menu, v, menuInfo);
        //设置Menu显示内容
        menu.setHeaderTitle("文件操作");
        menu.setHeaderIcon(R.drawable.ic_launcher);
//      menu.add(1, 1, 1, "复制");
//      menu.add(1, 2, 1, "粘贴");
//      menu.add(1, 3, 1, "剪切");
//      menu.add(1, 4, 1, "重命名");
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.main, menu);
    }
    
    @Override
    public boolean onContextItemSelected(MenuItem item) {
        // TODO Auto-generated method stub
        switch (item.getItemId()) {
        case R.id.context_menu_item1:
            Toast.makeText(MainActivity.this, "点击复制",Toast.LENGTH_SHORT).show();
            break;

        case R.id.context_menu_item2:
            Toast.makeText(MainActivity.this, "点击粘贴",Toast.LENGTH_SHORT).show();
            break;

        case R.id.context_menu_item3:
            Toast.makeText(MainActivity.this, "点击剪切",Toast.LENGTH_SHORT).show();
            break;

        case R.id.context_menu_item4:
            Toast.makeText(MainActivity.this, "点击重命名",Toast.LENGTH_SHORT).show();
            break;
        }
        
        return super.onContextItemSelected(item);
    
    }
    
    /**
     * 构造listview显示的数据
     * 
     * @return
     */
    private ArrayList getData() {
        ArrayList list = new ArrayList();
        for (int i = 0; i < 5; i++) {
            list.add("文件" + (i + 1));
        }
        return list;
    }
}


演示效果:


Android ContextMenu上下文菜单_第1张图片
context.gif

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