Develop Reference

When I import Google`s UniversalMusicPlayer to my android studio, it crashed

I am a newcomer who want to learn android.My friend suggested me to read the code of that player,but when I imported the project and compiled it,it crashed...
12-22 20:58:07.755 4870-4870/com.example.android.uamp
E/AndroidRuntime: FATAL EXCEPTION: main Process:
com.example.android.uamp, PID: 4870 java.lang.RuntimeException: Unable
to start activity
ComponentInfo{com.example.android.uamp/com.example.android.uamp.ui.MusicPlayerActivity}:
java.lang.RuntimeException: com.google.android.gms.internal.zzsb$zza:
No acceptable module found. Local version is 0 and remote version is
0. at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2448)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510)
at android.app.ActivityThread.access$1200(ActivityThread.java:163) at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1371)
at android.os.Handler.dispatchMessage(Handler.java:102) at
android.os.Looper.loop(Looper.java:135) at
android.app.ActivityThread.main(ActivityThread.java:5595) at
java.lang.reflect.Method.invoke(Native Method) at
java.lang.reflect.Method.invoke(Method.java:372) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) Caused
by: java.lang.RuntimeException:
com.google.android.gms.internal.zzsb$zza: No acceptable module found.
Local version is 0 and remote version is 0. at
com.google.android.gms.internal.zzni.zzbg(Unknown Source) at
com.google.android.gms.internal.zzni.zza(Unknown Source) at
com.google.android.gms.cast.framework.CastContext.(Unknown
Source) at
com.google.android.gms.cast.framework.CastContext.getSharedInstance(Unknown
Source) at
com.example.android.uamp.ui.ActionBarCastActivity.onCreate(ActionBarCastActivity.java:141)
at
com.example.android.uamp.ui.BaseActivity.onCreate(BaseActivity.java:49)
at
com.example.android.uamp.ui.MusicPlayerActivity.onCreate(MusicPlayerActivity.java:57)
at android.app.Activity.performCreate(Activity.java:6100) at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1109)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510)
at android.app.ActivityThread.access$1200(ActivityThread.java:163) at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1371)
at android.os.Handler.dispatchMessage(Handler.java:102) at
android.os.Looper.loop(Looper.java:135) at
android.app.ActivityThread.main(ActivityThread.java:5595) at
java.lang.reflect.Method.invoke(Native Method) at
java.lang.reflect.Method.invoke(Method.java:372) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: com.google.android.gms.internal.zzsb$zza: No acceptable
module found. Local version is 0 and remote version is 0. at
com.google.android.gms.internal.zzsb.zza(Unknown Source) at
com.google.android.gms.internal.zzni.zzbg(Unknown Source) at
com.google.android.gms.internal.zzni.zza(Unknown Source) at
com.google.android.gms.cast.framework.CastContext.(Unknown
Source) at
com.google.android.gms.cast.framework.CastContext.getSharedInstance(Unknown
Source) at
com.example.android.uamp.ui.ActionBarCastActivity.onCreate(ActionBarCastActivity.java:141)
at
com.example.android.uamp.ui.BaseActivity.onCreate(BaseActivity.java:49)
at
com.example.android.uamp.ui.MusicPlayerActivity.onCreate(MusicPlayerActivity.java:57)
at android.app.Activity.performCreate(Activity.java:6100) at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1109)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510)
at android.app.ActivityThread.access$1200(ActivityThread.java:163) at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1371)
at android.os.Handler.dispatchMessage(Handler.java:102) at
android.os.Looper.loop(Looper.java:135) at
android.app.ActivityThread.main(ActivityThread.java:5595) at
java.lang.reflect.Method.invoke(Native Method) at
java.lang.reflect.Method.invoke(Method.java:372) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Well,when I searched for answers,the responses were not useful...
And if you have some wonderful open source project to recommend ,hope you can tell me.Thx.
Sorry for my poor english...

You need to update your google play service of device.
You can see this Bug report which already has been addressed
and possibility you will have to update your gcm dependency then appropriate modifications of code will also required mean the deprecated methods will be needed to replaced with new one in the project for e.g GoogleApiAvailability to register token etc so also make sure you are using the latest gcm dependency in your project

Android - Permission Denial (scanLibrary?!)

I am trying to develop a simple app that scan documents. I am using scanlibrary, provided by jhansireddy (https://github.com/jhansireddy/AndroidScannerDemo). I've integrated the library with my actual project, i had done the gradle build.
When I start the activity, i have the options to select a photo from Gallery, or to take a brand new one. In both case, it crashes when it comes to save in the internal memory (requires android.permission.WRITE_EXTERNAL_STORAGE).
Below I will paste the entire error from logcat.
09-09 10:40:51.219 27738-27738/com.example.cosmin.kdocscanner E/MediaStore: Failed to insert image
java.lang.SecurityException: Permission Denial: writing com.android.providers.media.MediaProvider uri content://media/external/images/media from pid=27738, uid=10158 requires android.permission.WRITE_EXTERNAL_STORAGE, or grantUriPermission()
at android.os.Parcel.readException(Parcel.java:1599)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:135)
at android.content.ContentProviderProxy.insert(ContentProviderNative.java:476)
at android.content.ContentResolver.insert(ContentResolver.java:1251)
at android.provider.MediaStore$Images$Media.insertImage(MediaStore.java:971)
at com.scanlibrary.Utils.getUri(Utils.java:23)
at com.scanlibrary.PickImageFragment.postImagePick(PickImageFragment.java:146)
at com.scanlibrary.PickImageFragment.onActivityResult(PickImageFragment.java:141)
at android.app.Activity.dispatchActivityResult(Activity.java:6487)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3738)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3785)
at android.app.ActivityThread.access$1400(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5525)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
And after this one, another one that I think is a side effect. Meaning that at the point I resolve the first one, it will resolve the other too.
09-09 10:40:51.220 27738-27738/com.example.cosmin.kdocscanner E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.cosmin.kdocscanner, PID: 27738
java.lang.RuntimeException: Failure delivering result ResultInfo{who=android:fragment:0, request=2, result=-1, data=null} to activity {com.example.cosmin.kdocscanner/com.scanlibrary.ScanActivity}: java.lang.NullPointerException: uriString
at android.app.ActivityThread.deliverResults(ActivityThread.java:3742)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3785)
at android.app.ActivityThread.access$1400(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5525)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
Caused by: java.lang.NullPointerException: uriString
at android.net.Uri$StringUri.<init>(Uri.java:475)
at android.net.Uri$StringUri.<init>(Uri.java:465)
at android.net.Uri.parse(Uri.java:437)
at com.scanlibrary.Utils.getUri(Utils.java:24)
at com.scanlibrary.PickImageFragment.postImagePick(PickImageFragment.java:146)
at com.scanlibrary.PickImageFragment.onActivityResult(PickImageFragment.java:141)
at android.app.Activity.dispatchActivityResult(Activity.java:6487)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3738)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3785)
at android.app.ActivityThread.access$1400(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5525)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
I must say that android manifest has already the permission. In fact, both manifest files (The one that belongs to my project, and the one that belongs to the library).
What can be the cause?!

PjSip not working in Marshmallow

App is working fine prior to Marshmallow. Here is the logcat.
E/PjService: We have a problem with the current stack.... NOT YET Implemented
java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "BN_nist_mod_521" referenced by "/data/app/xx.xx-1/lib/arm/libsip.so"...
at java.lang.Runtime.loadLibrary(Runtime.java:372)
at java.lang.System.loadLibrary(System.java:1076)
at xx.xx.xx.PjSipService.tryToLoadStack(PjSipService.java:99)
at xx.xx.xx.SipService.loadStack(SipService.java:1050)
at xx.xx.xx.SipService.onStart(SipService.java:1011)
at android.app.Service.onStartCommand(Service.java:459)
at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3010)
at android.app.ActivityThread.-wrap17(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1442)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
AND
E/art: No implementation found for void org.pjsip.pjsua.pjsuaJNI.swig_module_init() (tried Java_org_pjsip_pjsua_pjsuaJNI_swig_1module_1init and Java_org_pjsip_pjsua_pjsuaJNI_swig_1module_1init__)
Can anyone guide me what to do?

issues with ttorrent with android?

i was looking for a torrent library for android and came-across ttorrent
.when i tried to add dependencty to gradle it gave me errors regarding slf4j-log4j12.
i ended up adding all jar files manually and managed to run the app using sample code.
But i am getting this error now.
ClassLoader referenced unknown path: /data/app/com.test.torrent-1/lib/arm64
android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1273)
at java.net.InetAddress.lookupHostByName(InetAddress.java:431)
at java.net.InetAddress.getLocalHost(InetAddress.java:409)
at com.test.torrent.MainActivity.onCreate(MainActivity.java:26)
at android.app.Activity.performCreate(Activity.java:6251)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
i think it is trying to find a library but i cannot find it , that path does not exist in my mobile , any help?

An app using zbar library for scanning QR codes is getting crash.

I am trying to run the QR scanner app downloaded from
http://kvenkataprasad.blogspot.in/2015/01/bar-code-and-qr-code-scanner-example.html?showComment=1449051540990#c226949441944394510
App getting started but when I am clicking the scan button, the app get crashed.
Following the log of crash.
13239-13239/com.kvprasad.zbarbarcodescanner E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.kvprasad.zbarbarcodescanner, PID: 13239
java.lang.UnsatisfiedLinkError: dlopen failed: /data/app/com.kvprasad.zbarbarcodescanner-1/lib/arm/libzbarjni.so: has text relocations
at java.lang.Runtime.loadLibrary(Runtime.java:372)
at java.lang.System.loadLibrary(System.java:1076)
at net.sourceforge.zbar.ImageScanner.<clinit>(Unknown Source)
at com.kvprasad.zbarbarcodescanner.BarcodeScanner.initControls(BarcodeScanner.java:52)
at com.kvprasad.zbarbarcodescanner.BarcodeScanner.onCreate(BarcodeScanner.java:42)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
I am not getting the main issue behind crashing because I am a newbie in android. Please guide me to solve the problem.
Thanks.