Hi All,
I got solution for the above problem. For that ,
1. I declared a new intent action in my manager class,
2. I called that action in service class using manager object
3. I used sendBroadcastAsUser API to broadcast a data from service class
to application layer.
Using above steps we can broadcast any value from service to app layer
using sendBroadcastAsUser() API not from sendBroadcast().
Thanks
Shiv
On Thursday, 19 September 2013 09:15:30 UTC+5:30, ramya mohan wrote:
>
> Hi,
>
> Usually we register for broadcast receiver in onResume() & unregister
> broadcast receiver in onPause() method.
> Try it out.
>
> Regards,
> Ramya
>
>
> On Wed, Sep 18, 2013 at 1:24 PM, shridutt kothari
> <shridut...@gmail.com<javascript:>
> > wrote:
>
>> Hi Prasad,
>>
>> It seems that you are getting error in
>> context.registerReceiver(**myReceiver, verifyFilter);
>>
>> Probably because the ACTION_VERIFY_VALUE might not be properly defined in
>> Intent.java, please varify on how to register new Intent action in AOSP.
>> As per all your above code everything looks fine, just the registration
>> of that intent filter is causing the Exception, So cross check the intent
>> filter availability in AOSP.
>>
>> Hope it helps!
>> Shridutt Kothari
>> Impetus Infotech Limited
>> shridut...@gmail.com <javascript:>
>>
>>
>> On Tuesday, September 17, 2013 5:58:12 PM UTC+5:30, Prasad wrote:
>>>
>>> Hi All,
>>>
>>> In my Android project I am reading a data from hardware device. I
>>> have Service class which contains a thread reading continuously data from
>>> hardware. while reading data from hardware I will check true = 1 or false
>>> = 0 values. My code is like below,
>>>
>>> public class MyService extends IMyservice.Stub{
>>>
>>> class MyThread extends Thread{
>>>
>>> public void run(){
>>>
>>> int value = dataFromHardware();
>>> updateValueToUi(value);
>>> }
>>> }
>>>
>>> }
>>>
>>> The above class in in a path of AOSP: frameworks/base/services/**
>>> java/com/android/server/**MyService.java
>>>
>>> In the above code the thread will start when MyService class gets a
>>> event from user and it reads data from hardware giving value. Now I want
>>> that value to pass to UI. For that I am creating updateValueToUi(**value)
>>> method so that I can Broadcast it to user. Here I dont know how to
>>> broadcast above value to UI. Compared with other code and I tried
>>> following mechanism to pass value to UI but it's giving NullpointerException
>>> Here is a code,
>>>
>>> public void updateValueToUi(int value){
>>>
>>> Intent intent = new Intent(Intent.ACTION_VERIFY_**VALUE);
>>> int myValue = value;
>>> intent.putExtra("verifyKey", myValue);
>>> intent.setFlags(Intent.FLAG_**ACTIVITY_NEW_TASK);
>>> mContext.sendBroadcastAsUser(**intent, UserHandle.CURRENT);
>>> }
>>>
>>> The value 'ACTION_VERIFY_VALUE' I defined in Intent.java class. and
>>> receiving in application side like below
>>>
>>> public BroadcastReceiver myReceiver = new BroadcastReceiver{
>>>
>>> public void onReceive(Context context, Intent intent){
>>>
>>> if("android.intent.action.**ACTION_VERIFY_VALUE".equals(**
>>> intent.getAction())){
>>>
>>> updateVerifyValue(intent);
>>> }
>>> }
>>>
>>> myMethod(){
>>>
>>> verifyFilter = new IntentFilter();
>>> verifyFilter.addAction(**Intent.ACTION_VERIFY_VALUE);
>>> context.registerReceiver(**myReceiver, verifyFilter);
>>> Toast.makeText(context, "verify clicked", 30).show();
>>> }
>>> }
>>>
>>> The above code giving me below eroor :
>>>
>>> FATAL EXCEPTION: main
>>> E/AndroidRuntime( 3934): java.lang.NullPointerException
>>> E/AndroidRuntime( 3934): at android.app.**ActivityManagerProxy.**
>>> registerReceiver(**ActivityManagerNative.java:**2097)
>>> E/AndroidRuntime( 3934): at android.app.ContextImpl.**
>>> registerReceiverInternal(**ContextImpl.java:1338)
>>> E/AndroidRuntime( 3934): at android.app.ContextImpl.**
>>> registerReceiver(ContextImpl.**java:1306)
>>> E/AndroidRuntime( 3934): at android.app.ContextImpl.**
>>> registerReceiver(ContextImpl.**java:1300)
>>> E/AndroidRuntime( 3934): at android.content.**ContextWrapper.**
>>> registerReceiver(**ContextWrapper.java:423)
>>> E/AndroidRuntime( 3934): at com.example.biometricclient.**
>>> BioClient$2.onClick(BioClient.**java:97) // my class in app layer
>>> E/AndroidRuntime( 3934): at android.view.View.**
>>> performClick(View.java:4202)
>>> E/AndroidRuntime( 3934): at android.view.View$**
>>> PerformClick.run(View.java:**17340)
>>> E/AndroidRuntime( 3934): at android.os.Handler.**
>>> handleCallback(Handler.java:**725)
>>> E/AndroidRuntime( 3934): at android.os.Handler.**
>>> dispatchMessage(Handler.java:**92)
>>> E/AndroidRuntime( 3934): at android.os.Looper.loop(Looper.**java:137)
>>> E/AndroidRuntime( 3934): at android.app.ActivityThread.**
>>> main(ActivityThread.java:5039)
>>> E/AndroidRuntime( 3934): at java.lang.reflect.Method.**invokeNative(Native
>>> Method)
>>> E/AndroidRuntime( 3934): at java.lang.reflect.Method.**
>>> invoke(Method.java:511)
>>> E/AndroidRuntime( 3934): at com.android.internal.os.**ZygoteInit$**
>>> MethodAndArgsCaller.run(**ZygoteInit.java:793)
>>> E/AndroidRuntime( 3934): at com.android.internal.os.**
>>> ZygoteInit.main(ZygoteInit.**java:560)
>>> E/AndroidRuntime( 3934): at dalvik.system.NativeStart.**main(Native
>>> Method)
>>> W/ActivityManager( 2716): Force finishing activity
>>> com.example.biometricclient/.**BioClient
>>>
>>>
>>> In between this i have Manager class and AIDL file in
>>> framework/base/core/java/**android/os to access API from MyService to
>>> App layer.
>>>
>>> Is I am following right way ? If no how to solve this problem.
>>>
>>>
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