Android控件之Menu的达成
发布时间：2021-11-24 19:50:32 所属栏目：教程 来源：互联网
导读：今天学习Menu控件比较简单，直接上代码了。首先是布局文件： ?xml version=1.0 encoding=utf-8? LinearLayout xmlns:Android=http://schemas.android.com/apk/res/android android:orientation=vertical android:layout_width=fill_parent android:layout_he
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今天学习Menu控件比较简单，直接上代码了。首先是布局文件： <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:text="Menu测试" android:textSize="24dp" android:layout_height="wrap_content"></TextView> </LinearLayout> 下面是主程序代码： package com.cloay; import android.app.Activity; import android.app.AlertDialog; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.widget.Toast; /** * MenuActivity.java * @author cloay * 2011-9-13 */ public class MenuActivity extends Activity { /** Called when the activity is first created. */ NotificationManager notificationManager; Intent intent; PendingIntent pendindIntent; Notification notification; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE); notification = new Notification(); } @Override public boolean onCreateOptionsMenu(Menu menu) { // TODO Auto-generated method stub /* * * add()方法的四个参数，依次是： * * 1、组别，如果不分组的话就写Menu.NONE, * * 2、Id，这个很重要，Android根据这个Id来确定不同的菜单 * * 3、顺序，那个菜单现在在前面由这个参数的大小决定 * * 4、文本，菜单的显示文本 */ //图标文件实现android系统自带的文件 menu.add(Menu.NONE, Menu.FIRST + 1, 1, "保存").setIcon(android.R.drawable.ic_menu_save); menu.add(Menu.NONE, Menu.FIRST + 2, 2, "添加").setIcon(android.R.drawable.ic_menu_add); menu.add(Menu.NONE, Menu.FIRST + 3, 3, "删除").setIcon(android.R.drawable.ic_menu_delete); menu.add(Menu.NONE, Menu.FIRST + 4, 4, "发送").setIcon(android.R.drawable.ic_menu_send); menu.add(Menu.NONE, Menu.FIRST + 5, 5, "帮助").setIcon(android.R.drawable.ic_menu_help); menu.add(Menu.NONE, Menu.FIRST + 6, 6, "退出").setIcon(android.R.drawable.ic_menu_close_clear_cancel); return super.onCreateOptionsMenu(menu); } @Override public boolean onMenuItemSelected(int featureId, MenuItem item) { // TODO Auto-generated method stub switch(item.getItemId()){ case Menu.FIRST + 1: Toast.makeText(MenuActivity.this, "保存菜单被点击了!", Toast.LENGTH_LONG).show(); //intent = new Intent(MenuActivity.this,Myhandler.class); //startActivity(intent); //overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out); break; case Menu.FIRST + 2: Toast.makeText(MenuActivity.this, "添加菜单被点击了!", Toast.LENGTH_LONG).show(); break; case Menu.FIRST + 3: Toast.makeText(MenuActivity.this, "删除菜单被点击了!", Toast.LENGTH_LONG).show(); break; case Menu.FIRST + 4: Toast.makeText(MenuActivity.this, "发送菜单被点击了!", Toast.LENGTH_LONG).show(); //通知在状态栏显示的图标 //notification.icon = android.R.drawable.ic_lock_silent_mode_off; //通知的内容 //notification.tickerText = "发送菜单被点击了!"; //通知时发出的声音 //notification.defaults = Notification.DEFAULT_SOUND; //intent = new Intent(MenuActivity.this,mNotification.class); //intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP|Intent.FLAG_ACTIVITY_NEW_TASK); //pendindIntent = PendingIntent.getActivity(MenuActivity.this, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); //notification.setLatestEventInfo(MenuActivity.this, "按钮", "发送按钮", pendindIntent); //notificationManager.notify(913, notification); break; case Menu.FIRST + 5: Toast.makeText(MenuActivity.this, "帮助菜单被点击了!", Toast.LENGTH_LONG).show(); break; case Menu.FIRST + 6: AlertDialog alertDialog = new AlertDialog.Builder(MenuActivity.this) .setTitle("提示！") .setIcon(R.drawable.ask) .setMessage("您确定要退出系统吗?") .setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { System.exit(0); dialog.cancel(); //提示对话框关闭 } }) .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub dialog.cancel(); //关闭对话框 } }).create(); alertDialog.show(); break; } return super.onMenuItemSelected(featureId, item); } }  （编辑：江门站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
