[英]Android BroadcastReceiver not working (error included)
在我的主要活動中,我正在執行以下操作:
Calendar calendar = Calendar.getInstance();
// 9:45 PM
calendar.set(Calendar.HOUR_OF_DAY, 21);
calendar.set(Calendar.MINUTE, 45);
calendar.set(Calendar.SECOND, 0);
AlarmManager am = (AlarmManager) this.getApplicationContext().getSystemService(Context.ALARM_SERVICE);
PendingIntent pi = PendingIntent.getService(this.getApplicationContext(), 0, new Intent(this.getApplicationContext(), MorningReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT);
am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);
Toast msg = Toast.makeText(NotificationScanner.this,
"Scheduled: " + calendar.getTime(), Toast.LENGTH_LONG);
msg.show();
這是我的接收者
public class MorningReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
MediaPlayer mMediaPlayer = new MediaPlayer();
Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
try {
mMediaPlayer.setDataSource(context, alert);
final AudioManager audioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
if (audioManager.getStreamVolume(AudioManager.STREAM_ALARM) != 0) {
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
mMediaPlayer.start();
PackageManager packageManager = context.getPackageManager();
Intent skype = packageManager.getLaunchIntentForPackage("com.skype.raider");
context.startActivity(skype);
}
}catch(Exception e){
Toast msg = Toast.makeText(context,
"Exception thrown", Toast.LENGTH_LONG);
msg.show();
}
}
}
這是我的AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.wayward.skype.wizard"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".SkypeActivity"
android:label="@string/title_activity_skype" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name="com.wayward.service.NotificationScanner" >
<intent-filter>
<action android:name="android.accessibilityservice.AccessibilityService" />
</intent-filter>
</service>
<receiver android:name="com.wayward.service.MorningReceiver" >
</receiver>
</application>
嘗試打開MorningReceiver時出現此錯誤:
Unable to start service Intent { flg=0x4 cmp=com.wayward.skype.wizard/com.wayward.service.MorningReceiver (has extras) }: not found
有人知道我在這里說錯了嗎? 還是我做錯了什么?
您已將MorningReceiver
聲明為Receiver
,並試圖將其作為Service
進行訪問。
系統正在嘗試查找名為MorningReceiver
的Service
並失敗,因此出現錯誤。
可以作為接收者訪問它,也可以將其更改為服務。
如果您以接收者的身份訪問它,請使用以下命令:
PendingIntent pi = PendingIntent.getBroadCast(this.getApplicationContext(), 0, new Intent(this.getApplicationContext(), MorningReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT);
代替這個:
PendingIntent pi = PendingIntent.getService(this.getApplicationContext(), 0, new Intent(this.getApplicationContext(), MorningReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT);
請參考本教程以獲得廣播接收器的良好概述:
http://vogella.com/articles/AndroidBroadcastReceiver/article.html
采用
PendingIntent pi = PendingIntent.getBroadCast(this.getApplicationContext(), 0, new Intent(this.getApplicationContext(), MorningReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT);
代替這個
PendingIntent pi = PendingIntent.getService(this.getApplicationContext(), 0, new Intent(this.getApplicationContext(), MorningReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT);
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