android sdk --- Notification用法实例

最新推荐文章于 2024-03-25 07:35:44 发布

原创最新推荐文章于 2024-03-25 07:35:44 发布 · 699 阅读

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#Notification #NotificationManager

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本文介绍了一个基于Spinner组件的状态切换功能实现方法。当用户从Spinner下拉菜单中选择不同的选项时，如在线、离开或忙碌，状态栏会显示相应的图标和文字提示。此功能通过监听Spinner的选择变化，并使用NotificationManager来更新状态栏。

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需求：

选择spinner的下拉菜单，状态栏中出现对应图标和文字

代码：

public class MainActivity extends Activity {

private NotificationManager myNotiManager;
private Spinner mySpinner;
private ArrayAdapter<String> myAdapter;
private static final String[] status =
  {"on line", "leave", "busy"};

protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  myNotiManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
  mySpinner = (Spinner)findViewById(R.id.spinner1);
  myAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,status);
  //myAdapter.setDropDownViewResource(R.layout.myspinner_dropdown);
  mySpinner.setAdapter(myAdapter);

  mySpinner.setOnItemSelectedListener(
    new Spinner.OnItemSelectedListener()
  {

   @Override
   public void onItemSelected(AdapterView<?> arg0, View arg1,
     int arg2, long arg3) {
    // TODO Auto-generated method stub
    if(status[arg2].equals("on line"))
    {
     setNotiType(R.drawable.left, "on line");
    }
    else if(status[arg2].equals("leave"))
    {
     setNotiType(R.drawable.oa, "leave");
    }
    else if(status[arg2].equals("busy"))
    {
     setNotiType(R.drawable.right, "busy");
    }
   }

   @Override
   public void onNothingSelected(AdapterView<?> arg0) {
    // TODO Auto-generated method stub

   }

  });
}
private void setNotiType(int iconId, String text)
{
  Intent notifyIntent = new Intent(this, syAct.class);
  notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  PendingIntent appIntent = PendingIntent.getActivity(MainActivity.this, 0, notifyIntent, 0);
  Notification myNoti = new Notification();
  myNoti.icon= iconId;
  myNoti.tickerText = text;
  myNoti.defaults = Notification.DEFAULT_SOUND;
  myNoti.setLatestEventInfo(MainActivity.this, "login status", text, appIntent);
  myNotiManager.notify(0, myNoti);
}
@Override
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;
}

}