Android-以固定的间隔从另一个服务调用系统服务。
正如问题所暗示的那样，我想知道如何编写一个可以调用系统服务的线程，然后等待一定时间，然后再调用该系统服务的函数，该函数从已注册的ѭ1回调回
onReceive
IntentFilters
startScan
private Object _lock = new Object();
private final long SLEEP_TIME = 15000; //Scan every 15 secs
private final long WIFI_SCAN_TIMEOUT = 60000; //One minute timeout for getting called back, otherwise, initiate a new scan.
@Override
public void run() {
while(running){
//Start a new scan;
wifiSearchComplete = false;
_wifiMan.startScan();
while(!wifiSearchComplete){
synchronized(_lock){
try{
_lock.wait(WIFI_SCAN_TIMEOUT);
} catch (InterruptedException ie){
Log.d(TAG, TAG+\".run() caught \" + ie.getMessage() +\" when trying to sleep for \" + (WIFI_SCAN_TIMEOUT/1000) +\"secs.\");
Thread.currentThread().interrupt();
}
}
if(!wifiSearchComplete){
synchronized(_lock){
//Try scanning again since we didn\'t get called back at all;
_lock.notify();
}
}
}
}
}
public boolean isRunning(){
return running;
}
public void stop(){
synchronized(_lock){
running = false;
//unregister receivers and cleanup
_lock.notify();
}
}
@Override
public void onReceive(Context context, Intent intent) {
synchronized(_lock){
wifiSearchComplete = true;
//iterate through our SSID\'s
try{
_lock.wait(SLEEP_TIME);
} catch (InterruptedException ie){
Log.d(TAG, TAG+\".onReceive() caught \" + ie.getMessage() +\" when trying to sleep for \" + (SLEEP_TIME/1000) +\"secs.\");
Thread.currentThread().interrupt();
}
_lock.notify();
}
}
onDestroy
BroadcastReceiver
onReceive
Thread.sleep
没有找到相关结果
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讹巳漓把备