broadcastreceiver

问题 I have Spotify and want to use the title and Song name in my Application. (Final Goal would be to export it to my Liveview watch, so that I can contron Spotify with it) As there is a Spotify-Widget, I simply would like to add a Broadcast Recevier to get the Data sent to the widget. So I add a Broadcast receiver, and as far as I understand the concept, this should suffice and I then should be able to get the data Spotify sends to the widget. According to the Documentation, you can do

问题 I am planning to write an app whose sole purpose will be to monitor the battery level, and launch an intent the moment it drops below a certain level. My one concern is that this itself will be a battery drain, and no one will want to use it. So my question is: Exactly how much power is drained by using the ACTION_BATTERY_CHANGED broadcast receiver? Does anyone know approximately how much battery life we're talking about? 回答1: I don't think you'll drain much power. This broadcast is sent only

问题 I'm using download manager class in android to download some files . This class can add and remove a request of downloading . Is there any way to pause a specific download then resume it ? Or Is there another way to do that ? Edit: I found this way, It's working: When pause downloading process, close the file we wrote on. When resume downloading, access to the file (not completed) and get its size Add downloaded bytes info to the header of httpRequest : mHttpRequset.setHeader("Range", "bytes=

问题 I am trying to play some tone when my application is in background and I press on " Camera " button for that I am doing this simple steps. Creating BroadcastReceiver class public class CameraButtonListener extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { ToneGenerator tone = new ToneGenerator(AudioManager.STREAM_DTMF, 100); tone.startTone(0,2000); abortBroadcast(); } } Register BrodcastReceiver in onCreate methode. @Override public void onCreate

问题 call.java: public class Call extends Activity{ boolean timerhasstarted; Intent callIntent; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); call(); } void call() { String num="7829893070"; callIntent=new Intent(Intent.ACTION_CALL); callIntent.setData(Uri.parse("tel:"+num)); if(!timerhasstarted) { startActivity(callIntent); ct.start(); timerhasstarted=true; } else { ct.cancel(); timerhasstarted=false; Toast.makeText

问题 I've recently set up an app that will receive sms messages and then display them as a toast on the main activity. Once the app has received an SMS it will abort broadcast and stop the message from going into the inbox. Currently it does this with all messages that the phone receives but I would like it to only carry out its job and display the toast when an SMS is received by a specific number. I know that it is a case of putting an if statement into my receiver code but I'm not too sure

问题 HI guys is there a way for me to know whether the phone is in lock state? 回答1: Have your app listen our for the ACTION_SCREEN_OFF broadcast. More information here. public class ScreenReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) { //screen locked } else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) { //screen unlocked } } } You might also want to receive information of

问题 I have spent the last several hours trying to research this and understand it, however i've come up empty on every example I tried. Basically my app can send information via MMS to someone else, though the content is in a format that the native inbox doesn't display correctly. Sending the content works fine, however I need to be able to detect the incoming MMS message and open the content in my application to format it correctly. Are there any decent tutorials for this? Of the ones i've found

问题 Im getting nullpointerexception for the following code: I have SMS of more than 160 characters length, so im dividing them using divide() and then adding one sent PendingIntent. Sometimes this exception comes up. My mobile number and sms data are not null; String SENT = "SMS_SENT"; PendingIntent sentPI = PendingIntent.getBroadcast(this, 0, new Intent( SENT), 0); // ---when the SMS has been sent--- BroadcastReceiver sentSMSStatusReciever = new BroadcastReceiver() { @Override public void

问题 So I've spent the past few weeks working on my Android App and looking into the best way of implementing what I need to do, but still can't quite get it right.. Any/all help is greatly appreciated, as I am still getting the hang of things.. Task: (Assuming the "Location"/GPS Setting is currently off), I need to have my App constantly be listening for the "Location" Setting to be turned ON.. At this point, simply start an Activity. Ideas: These are all the different ways I think it could