状态栏的图标与文字提醒

来源：互联网发布：书扬微信营销软件编辑：程序博客网时间：2024/05/21 03:54

Abndroid手机上有一个状态栏。当系统有一些信息（收到新信息，未接来电等）要通知用户时，系统通常会把信息显示在状态栏，有的仅显示小图标，有的显示图标和文字。

在程序中，AndroidAPI为了管理提示信息（Notification）已经定义了NotificationManager,只要把Notification添加NotificationManager，即可将信息显示在状态栏。运行截图：

状态栏的图标与文字提醒

package com.lyc;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.AdapterView.OnItemSelectedListener;

public class NotificationManagerActivity extends Activity{
private NotificationManager myNotiManager;
private Spinner mySpinner;
privateArrayAdapter<String> myAdapter;
private static final String[]status = {"在线","离开","忙碌着","离线"};

   @Override
    public voidonCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.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 OnItemSelectedListener(){

   @Override
   public voidonItemSelected(AdapterView<?> arg0,View arg1,
     intarg2, long arg3) {
    //TODO Auto-generated method stub
    if(status[arg2].equals("在线")){
     setNotiType(R.drawable.online,"在线");
    }elseif(status[arg2].equals("离开")){
     setNotiType(R.drawable.offline,"离开");
    }elseif(status[arg2].equals("忙碌着")){
      setNotiType(R.drawable.busy,"忙碌着");
    }else{
     setNotiType(R.drawable.away,"离线");
    }
   }

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

   }
  });
    }
    private voidsetNotiType(int iconId, String string) {
  // TODO Auto-generated methodstub

  Intent notifyIntent = newIntent(this,another.class);
  notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  PendingIntent appIntent =PendingIntent.getActivity(NotificationManagerActivity.this, 0,notifyIntent,0);
  Notification myNoti = newNotification();
  myNoti.icon=iconId;
  myNoti.tickerText=string;
  myNoti.defaults=Notification.DEFAULT_SOUND;
  myNoti.setLatestEventInfo(NotificationManagerActivity.this,"QQ登录状态", string, appIntent);
  myNotiManager.notify(0,myNoti);
}
}

package com.lyc;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Toast;

public class another extends Activity{
protected void onCreate(BundlesavedInstanceState) {
       super.onCreate(savedInstanceState);
       Toast.makeText(another.this, "模拟切换状态",Toast.LENGTH_SHORT).show();
       finish();
}

}

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