Android(安卓)ContextMenu上下文菜单
16lz
2022-03-14
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：
context.gif
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