第二章实例:Android窗口菜单显示
package test.main.cls; import com.example.popupwindow.R; import android.app.Activity; import android.os.Bundle; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.Gravity; import android.view.Menu; import android.view.MenuItem; import android.view.SubMenu; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.widget.Button; import android.widget.PopupMenu; import android.widget.PopupMenu.OnMenuItemClickListener; import android.widget.PopupWindow; import android.widget.Toast; public class PopupWindows extends Activity { @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { menu.setHeaderIcon(R.drawable.ic_launcher); SubMenu submenu = menu.addSubMenu("系统修复");//该方法返回submenu接口对象,想必menu实现了submenu接口 submenu.add(0, 0, 0, "自动修复").setIcon(R.drawable.ic_launcher); submenu.add(0, 1, 0, "修复外存").setIcon(R.drawable.ic_launcher); submenu.add(0, 2, 0, "修复硬件").setIcon(R.drawable.ic_launcher); //------------------------------------------ menu.setHeaderIcon(R.drawable.ic_launcher); SubMenu submenus = menu.addSubMenu("全局修复");//该方法返回submenu接口对象,想必menu实现了submenu接口 submenus.add(0, 0, 0, "完全修复").setIcon(R.drawable.ic_launcher); submenus.add(0, 1, 0, "无损修复").setIcon(R.drawable.ic_launcher); submenus.add(0, 2, 0, "完美修复").setIcon(R.drawable.ic_launcher); super.onCreateContextMenu(menu, v, menuInfo); } @Override public boolean onCreateOptionsMenu(Menu menu) { SubMenu submenu = menu.addSubMenu("毁灭系统");//该方法返回submenu接口对象,想必menu实现了submenu接口 submenu.add(0, 0, 0, "全盘毁灭").setIcon(R.drawable.ic_launcher); submenu.add(0, 1, 0, "毁灭外存").setIcon(R.drawable.ic_launcher); submenu.add(0, 2, 0, "毁灭硬件").setIcon(R.drawable.ic_launcher); //submenu.add(0, 4, 0, "毁灭电池").setIcon(R.drawable.ic_launcher).setIntent(/*Intent*/); //submenu.add(0, 3, 0, "毁灭屏幕").setShortcut('F', '5'); //submenu.setGroupCheckable(0, true, true);按钮组是否可勾选 //----------------------------------------- SubMenu submenu1 = menu.addSubMenu("发送诈骗信息"); submenu1.add(0, 0, 0, "发送给全部好友"); submenu1.add(0, 1, 0, "发送给最近联系"); submenu1.add(0, 2, 0, "随机发送"); submenu1.add(0, 3, 0, "发送国外"); return super.onCreateOptionsMenu(menu); } @Override public void onOptionsMenuClosed(Menu menu) { // TODO Auto-generated method stub super.onOptionsMenuClosed(menu); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); View contentv = this.getLayoutInflater().inflate(R.layout.main_layout, null); this.setContentView(contentv); //------------------------------------------- Button btn = (Button)findViewById(R.id.clickssss); final PopupMenu pMenu = new PopupMenu(PopupWindows.this,btn); this.getMenuInflater().inflate(R.menu.popup_menu, pMenu.getMenu()); btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { pMenu.show(); } }); pMenu.setOnMenuItemClickListener(new OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem item) { Toast.makeText(PopupWindows.this, item.getTitle(), Toast.LENGTH_LONG).show(); return true; } }); ///------------------------------------------ //注意::findViewById需要setContentView后可用 this.registerForContextMenu(contentv);//给一个View绑定上下文菜单 } }
xml:
//main_layout <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <Button android:id="@+id/clickssss" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="弹出"/> </LinearLayout>
xml: //menu/popup_menu.xml <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android" > <group android:checkableBehavior="none"> <item android:id="@+id/menu_1" android:title="这是一个弹出菜单"/> <item android:id="@+id/menu_2" android:title="其用法也非常简单"/> <item android:id="@+id/menu_3" android:title="控件使用不是重点"/> <item android:id="@+id/menu_4" android:title="重点是要理解代码"/> </group> </menu>