這是我第一次嘗試創建一個android應用程序。我正在嘗試創建一個可以在後臺統計的服務,並且我希望該服務能夠將時間廣播到接收方。雖然接收器似乎沒有收到任何東西,但我不確定我的服務是否開始。廣播還沒有開始
這裏就是我試圖啓動該服務,並創建了接收器的代碼:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
IntentFilter filter = new IntentFilter();
filter.addAction("EXAMPLE_BROADCAST");
clock = (TextView) findViewById(R.id.textClock);
timeReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
setClock(intent.getLongExtra("counter", 0));
}
};
registerReceiver(timeReceiver,filter);
startService(new Intent(this, CounterService.class));
}
public void setClock(long time){
clock.setText(String.valueOf(time));
}
這是我的服務類:
public class CounterService extends Service {
private Handler handler;
private long initialTime;
private long timeInMilliseconds = 0L;
private boolean isActive;
Intent timeBroadcaster = new Intent("EXAMPLE_BROADCAST");
@Override
public void onCreate(){
super.onCreate();
Runnable counter = new Runnable() {
@Override
public void run() {
isActive = ((PowerManager) getSystemService(Context.POWER_SERVICE)).isInteractive();
if(isActive) {
timeInMilliseconds += 1000;
handler.postDelayed(this, 1000);
}
else {
if(timeInMilliseconds > 5000) {
timeInMilliseconds = 0;
}
handler.postDelayed(this, 1000);
}
timeBroadcaster.putExtra("counter", timeInMilliseconds);
sendBroadcast(timeBroadcaster);
}
};
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
}
任何幫助表示讚賞,感謝。
你清單中定義的服務? –
你註冊了你的接收器嗎? –
@Smartiz是的,我做到了! :/ – Jesper