broadcastreceiver

问题 I have implemented GCM in my android application and it's working fine with receiving messages. The BroadcastReceiver is set up in the manifest-file according to the examples provided by Google. My question is the following: If the user is having the application open and I want to update some results in that view - how can this be done? I was first thinking of registering this activity as a listener on whatever the BroadCastReceiver recieves. However, this must then be a static list of

问题 I have a problem. I am trying to make a broadcast receiver acquire a wake lock so my alarm will wake the phone from sleep mode. In the broadcast receiver below, the program crashes with "source not found" on line "sCpuWakeLock.acquire(); when the class "AlarmAlertWakeLock" is called by AlarmReceiver. Any idea what's going on? Is there a better way to do what I'm trying to do? In one file: import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent;

问题 I am trying to launch an activity from a broadcast receiver that listens to outgoing call which is 5556. The problem is, the activity is not being launched but the dial inbuilt activity is being called, I have changed the priority of the intent to 100 but to no avail. How do I get the activity to launch at dial instead of the inbuilt calling activity? Here is the code: package com.messageHider; import android.content.BroadcastReceiver; import android.content.Context; import android.content

问题 I am trying to launch an activity from a broadcast receiver that listens to outgoing call which is 5556. The problem is, the activity is not being launched but the dial inbuilt activity is being called, I have changed the priority of the intent to 100 but to no avail. How do I get the activity to launch at dial instead of the inbuilt calling activity? Here is the code: package com.messageHider; import android.content.BroadcastReceiver; import android.content.Context; import android.content

问题 I am trying to create an app which enters a log message when I make an outgoing call. However, when I run the code, I get a permission denial, despite the fact that I have entered in the permissions. Denial Log: "09-04 02:35:50.535 1294-1666/? W/BroadcastQueue﹕ Permission Denial: receiving Intent { act=android.intent.action.NEW_OUTGOING_CALL flg=0x10000010 (has extras) } to samples.varma.packagecom.testreceive2/.CallReceiver requires android.permission.PROCESS_OUTGOING_CALLS due to sender

问题 I used this code for detecting single and double click for headset button in my broadcast receiver: int d = 0; @Override public void onReceive(Context context, Intent intent) { String intentAction = intent.getAction(); if (!Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) { return; } KeyEvent event = (KeyEvent) intent .getParcelableExtra(Intent.EXTRA_KEY_EVENT); if (event == null) { return; } int action = event.getAction(); switch (event.getKeyCode()) { case KeyEvent.KEYCODE_HEADSETHOOK: if

问题 Suppose I want to develop an application that extends in some way (let me say "cooperate with") a very popular application I obviously don't have control over. Let us also suppose, for sake of simplicity, that the very famous application author won't release an update to block my application. I studied the application's functionality and identified that it widely uses BroadcastReceiver s. I also know, from manifest, the com.famousvendor.intent.INTENT_NAME constants I might use. The question

问题 Can anyone point to a good source or come up with a brief listing of conceptual android programming DONT's when designing an App? I dont want my question to be vague, so I'll give dummy examples(which might not make any sense or may be completely incorrect) to explain what kind of answers I am looking for are things like : Eg: Avoiding these help you design/program robust android apps Dont acquire wake locks when waiting for a server response OR Dont have this logic in OnReceive of a

问题 Is there a possibility of handling the data displayed on call cost dialogue received by prepaid user. I want to save all the balance reduction for along with call duration in my sqlite db. 回答1: As we learn from the already famous blog post As a start, look at the PhoneUtils class in the Android source code. [...] Specifically, looking at line 217, an intent with the name “com.android.ussd.IExtendedNetworkService” is being composed. So what you need to do is implement your own service that

问题 I have to develop an app locker for Android where the user can block apps and other users can not access these apps without an access key. I have installed an app but I don't know how to lock this app. Please suggest me something. 回答1: This is not how stack overflow works. You can not ask a complete solution without even trying anything. For the most basic version of your app, you need to perform three functions. Get a list of all the installed apps on device and show them in a ListView with