Android 用收音机制作闹钟
我想用android做一个闹钟,我用BroadcastReceiver写了这个,但我有一些问题。。。 我想在指定的时间开始报警,例如,我想在每3:50开始报警。。。 但当我运行应用程序时,也会出现警报 下面是我的代码: 任何人都可以帮助我: 这是我的广播接收器:Android 用收音机制作闹钟,android,broadcastreceiver,alarmmanager,alarm,Android,Broadcastreceiver,Alarmmanager,Alarm,我想用android做一个闹钟,我用BroadcastReceiver写了这个,但我有一些问题。。。 我想在指定的时间开始报警,例如,我想在每3:50开始报警。。。 但当我运行应用程序时,也会出现警报 下面是我的代码: 任何人都可以帮助我: 这是我的广播接收器: public class MyBroadcastReceiver extends BroadcastReceiver { public static MediaPlayer mediaPlayer; @Override
public class MyBroadcastReceiver extends BroadcastReceiver {
public static MediaPlayer mediaPlayer;
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals("com.tester.alarmmanager")) {
Toast.makeText(context, "Its time!!!", Toast.LENGTH_SHORT).show();
mediaPlayer = MediaPlayer.create(context, R.raw.entezar);
mediaPlayer.start();
}
}
}
在主要活动中:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
StartAlarm(03,50);
}
public void StartAlarm(int hour, int min){
Intent intent = new Intent(this, MyBroadcastReceiver.class);
intent.setAction("com.tester.alarmmanager");
PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(),23433,intent,0);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
Log.v("time picker",calendar.getTime()+"");
calendar.set(Calendar.HOUR_OF_DAY,hour);
calendar.set(Calendar.MINUTE,min);
calendar.set(Calendar.SECOND,00);
if (Build.VERSION.SDK_INT>= Build.VERSION_CODES.KITKAT){
alarmManager.setExact(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),pendingIntent);
Toast.makeText(MainActivity.this, "Alarm>kitkat", Toast.LENGTH_SHORT).show();
}
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT){
alarmManager.set(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),pendingIntent);
Toast.makeText(MainActivity.this, "Alarm<kitkat", Toast.LENGTH_SHORT).show();
}
}
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
星形臂(03,50);
}
公共空星武器(整数小时,整数分钟){
Intent Intent=新Intent(这个,MyBroadcastReceiver.class);
intent.setAction(“com.tester.alarmmanager”);
PendingEvent PendingEvent=PendingEvent.getBroadcast(this.getApplicationContext(),23433,intent,0);
AlarmManager AlarmManager=(AlarmManager)getSystemService(报警服务);
日历=Calendar.getInstance();
Log.v(“时间选择器”,calendar.getTime()+);
calendar.set(calendar.HOUR\u OF_DAY,HOUR);
日历.设置(日历.分钟,分钟);
日历集(日历秒,00);
if(Build.VERSION.SDK\u INT>=Build.VERSION\u code.KITKAT){
alarmManager.setExact(alarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),PendingContent);
Toast.makeText(MainActivity.this,“Alarm>kitkat”,Toast.LENGTH_SHORT.show();
}
if(Build.VERSION.SDK_INT Toast.makeText(MainActivity.this,“报警在calendar.getInstance()之后添加
或者检查此链接下的代码没有人知道问题???
<receiver android:name=".Utility.MyBroadcastReceiver">
<intent-filter>
<action android:name="com.tester.alarmmanager"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</receiver>
calendar.setTimeInMillis(System.currentTimeMillis())