Android菜单的几种方法

摘要: 根据自己的理解和学习慕课网基础敲得。从网易云笔记倒过来的

6.菜单分类（）

普通创建菜单的两种方法

1.动态的添加菜单栏，然后创建菜单栏的点击事件

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public boolean onCreateOptionsMenu(Menu menu) { // 动态添加菜单 MenuItem item =menu.add(1, 100, 1, "菜单一"); item.setTitle("aaa"); item.setIcon(R.drawable.ic_launcher); //api>=11 不显示图标 menu.add(1, 101, 1, "菜单二"); menu.add(1, 102, 1, "菜单三"); menu.add(1, 103, 1, "菜单四"); return true; &nbs 3ff0 p; } // 点击监听事件 将每个菜单栏绑定 public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case 100: //跳转到一个页面 Intent intent = new Intent(MainActivity.this,SecondActivity.class); item.setIntent(intent); break; case 101: Toast.makeText(MainActivity.this, "点击了菜单二", Toast.LENGTH_LONG) .show(); break; case 102: Toast.makeText(MainActivity.this, "点击了菜单三", Toast.LENGTH_LONG) .show(); break; case 103: Toast.makeText(MainActivity.this, "点击了菜单四", Toast.LENGTH_LONG) .show(); break; } return super.onOptionsItemSelected(item); }

2.将菜单栏写在menu文件夹中然后 调用

main 文件

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<menu xmlns:android=" http://schemas.android.com/apk/res/android" xmlns:tools=" http://schemas.android.com/tools" tools:context="com.example.mk_opetionmenu.MainActivity" > <item android:id="@+id/action_settings" android:orderInCategory="100" android:showAsAction="never" android:title="@string/action_settings"/> <item android:id="@+id/action_menu_item1" android:orderInCategory="100" android:showAsAction="never" android:title="菜单1"/> <item android:id="@+id/action_menu_item2" android:orderInCategory="100" android:showAsAction="never" android:title="菜单2"/> </menu>

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public boolean onCreateOptionsMenu(Menu menu) { Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } // 点击监听事件 将每个菜单栏绑定 public boolean onOptionsItemSelected(MenuItem item) { // TODO Auto-generated method stub switch (item.getItemId()) { case R.id.action_menu_item1: //跳转到一个页面 Intent intent = new Intent(MainActivity.this,SecondActivity.class); item.setIntent(intent); break; case R.id.action_menu_item2: Toast.makeText(MainActivity.this, "点击了菜单四", Toast.LENGTH_LONG) .show(); break; } return super.onOptionsItemSelected(item); }

上下文的菜单栏菜单栏（长按弹出的菜单栏）

1.创建listview

2.确定上下文菜单（注册菜单，添加菜单内容（两种方法））

3.添加点击相应事件事件

加载xml文件

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<menu xmlns:android=" http://schemas.android.com/apk/res/android" xmlns:tools=" http://schemas.android.com/tools" tools:context="com.example.mk_contextmenu.MainActivity" > <item android:id="@+id/action_item1" android:orderInCategory="100" android:showAsAction="never" android:title="复制"/> <item android:id="@+id/action_item2" android:orderInCategory="100" android:showAsAction="never" android:title="粘贴"/> <item android:id="@+id/action_item3" android:orderInCategory="100" android:showAsAction="never" android:title="剪贴"/> <item android:id="@+id/action_item4" android:orderInCategory="100" android:showAsAction="never" android:title="重命名"/> </menu>

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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.showListView); ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, getData()); listview.setAdapter(adapter); this.registerForContextMenu(listview);// 注册上下文菜单 } /** * 设置具体的菜单项 */ @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, menuInfo); // 设置menu显示的内容 menu.setHeaderTitle("文件操作"); menu.setHeaderIcon(R.drawable.ic_launcher); MenuInflater inflater = getMenuInflater(); // 把menu中的菜单main添加到菜单栏 inflater.inflate(R.menu.main, menu); } /** * 菜单的注册事件 */ @Override public boolean onContextItemSelected(MenuItem item) { // TODO Auto-generated method stub switch (item.getItemId()) { case R.id.action_item1: Toast.makeText(this, "复制中", Toast.LENGTH_LONG).show(); break; case R.id.action_item2: Toast.makeText(this, "粘贴中", Toast.LENGTH_LONG).show(); break; case R.id.action_item3: Toast.makeText(this, "剪贴中", Toast.LENGTH_LONG).show(); break; case R.id.action_item4: Toast.makeText(this, "重命名中", Toast.LENGTH_LONG).show(); break; } return super.onContextItemSelected(item); } /** * 构造listview显示的数据 * * @return */ private ArrayList<String> getData() { ArrayList<String> list = new ArrayList<String>(); for (int i = 0; i < 5; i++) { list.add("文件" + (i + 1)); } return list; } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; }

动态的添加

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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.showListView); ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, getData()); 3ff0 listview.setAdapter(adapter); this.registerForContextMenu(listview);// 注册上下文菜单 } /** * 设置具体的菜单项 */ @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { // TODO Auto-generated method stub super.onCreateContextMenu(menu, v, menuInfo); // 设置menu显示的内容 menu.setHeaderTitle("文件操作"); menu.setHeaderIcon(R.drawable.ic_launcher); menu.add(1, 1, 1, "复制"); // 代码动态添加 menu.add(1, 2, 1, "粘贴"); menu.add(1, 3, 1, "剪贴"); menu.add(1, 4, 1, "重命名"); } /** * 菜单的注册事件 */ @Override public boolean onContextItemSelected(MenuItem item) { // TODO Auto-generated method stub switch (item.getItemId()) { case 1: Toast.makeText(this, "复制中", Toast.LENGTH_LONG).show(); break; case 2: Toast.makeText(this, "粘贴中", Toast.LENGTH_LONG).show(); break; case 3: Toast.makeText(this, "剪贴中", Toast.LENGTH_LONG).show(); break; case 4: Toast.makeText(this, "重命名中", Toast.LENGTH_LONG).show(); break; } return super.onContextItemSelected(item); } /** * 构造listview显示的数据 * * @return */ private ArrayList<String> getData() { ArrayList<String> list = new ArrayList<String>(); for (int i = 0; i < 5; i++) { list.add("文件" + (i + 1)); } return list; } @Override public boolean onCreateOptionsMenu(Menu menu) { Inflate the menu; this adds items to the action bar if it is present. return true; }

百度云demo地址：http://pan.baidu.com/s/1gdJeum3