Hi, so I have got to know about v3 but however despite me not having a Google account, except one I forgot, I shall be putting me suggestions here if ye dont mind. =•}

• The app takes a lot of time to startup on my lenovo S60 running latest everything. After noting time, it nearly took 22 seconds to startup. You might want to reduce that.
• Create a counter list about how many people downloaded the update. Would be gud. Better detection of version can be done too.
• Create an option in settings to automatically delete the apk after auto or manual download.
• Create an option in settings to add a time setter or something as to when the update should be installed as per device time.
• Don't know if you have heard of Google's latest pull down refresh button. You would if you used chrome on mobile or something. I think you can incorporate such a feature into this app.

That's it for now, will notify you if I find more ideas. I hope you implement most of the possible ones into this app. When is the release date for v3? Thanks.

Fatal Exception: java.lang.RuntimeException: An error occured while executing doInBackground()
       at android.os.AsyncTask$3.done(AsyncTask.java:300)
       at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
       at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
       at java.util.concurrent.FutureTask.run(FutureTask.java:242)
       at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
       at java.lang.Thread.run(Thread.java:818)
Caused by java.lang.ArrayIndexOutOfBoundsException: length=1; index=1
       at com.javiersantos.whatsappbetaupdater.util.UtilsAsync.getLatestWhatsAppVersion(UtilsAsync.java:335)
       at com.javiersantos.whatsappbetaupdater.util.UtilsAsync$NotifyWhatsAppVersion.doInBackground(UtilsAsync.java:107)
       at com.javiersantos.whatsappbetaupdater.util.UtilsAsync$NotifyWhatsAppVersion.doInBackground(UtilsAsync.java:94)
       at android.os.AsyncTask$2.call(AsyncTask.java:288)
       at java.util.concurrent.FutureTask.run(FutureTask.java:237)
       at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
       at java.lang.Thread.run(Thread.java:818)

Please, add a button "Get it on F-Droid" with a PNG file from https://commons.wikimedia.org/wiki/File:Get_it_on_F-Droid.svg in your README file with the appropriate link to the page of your app on F-Droid.

Apparently on whatsapp.com/android they show a hyperlink to opt for beta program. https://play.google.com/apps/testing/com.whatsapp/join Moreover, you might want to request support for your app as I have noticed many Whatsapp Updaters in google play store. But I guess this beta program destroys all that.

The title Beta Updater for WhatsApp is quite long, so the text is clipped: This PR changes the layout so wrapping is possible:

I searched the internet for how to wrap the title of a CollapsingToolbarLayout. Unfortunately, that's not possible. Instead you have to make the CollapsingToolbarLayout's title transparent and add another TextView.

I'm not an Android developer. In fact, I just downloaded Android Studio just to fix this (the cutoff title always annoyed me). So there might be a better to achieve this, and there might be layout issue when changing the display dimensions. Anyway, I wouldn't be offended if you'd reject this PR :wink:

I really appreciate your project.

This is more of a suggestion than a feature request.

In my opinion, polling for updates on a central server (every 5 minutes or so) and then sending push notifications out to clients makes more sense than having all clients poll the server themselves.

The server-side of this is quite easy to implement. Just setup a small server, make it poll the website (you can probably reuse the existing logic), and if the version has changed, send push notifications through Google Cloud Messaging. The client-side is probably harder to do (I've never done app programing myself so I can't really judge), but I presume it's not that hard either.

Is there no way you can add changelog to your app. This app is gold but at the same time there is no changelog. So whats the point of beta updates. Thanks.

I've checked out the compatibility on my Nexus 5 running Android M Preview MPZ44Q. It hasn't to be a real issue because of the current preview state of Android M but maybe there is a little code snippet that's not compatible with future Android releases.

Logcat output:

06-01 15:24:48.750    4945-4945/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: com.javiersantos.whatsappbetaupdater, PID: 4945
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.javiersantos.whatsappbetaupdater/md59c7d171be2c3fa8785b4ded0570f618e.MainActivity}: java.lang.UnsupportedOperationException: Use StringFactory instead.
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2411)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2470)
            at android.app.ActivityThread.-wrap11(ActivityThread.java)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1343)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:148)
            at android.app.ActivityThread.main(ActivityThread.java:5401)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:725)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:615)
     Caused by: java.lang.UnsupportedOperationException: Use StringFactory instead.
            at java.lang.String.<init>(String.java:245)
            at md59c7d171be2c3fa8785b4ded0570f618e.MainActivity.n_onCreate(Native Method)
            at md59c7d171be2c3fa8785b4ded0570f618e.MainActivity.onCreate(MainActivity.java:32)
            at android.app.Activity.performCreate(Activity.java:6116)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2470)
            at android.app.ActivityThread.-wrap11(ActivityThread.java)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1343)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:148)
            at android.app.ActivityThread.main(ActivityThread.java:5401)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:725)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:615)

I get the error when i change targetSdkVersion 22, i can't override 22 on targetSdkVersion But Google are cracking down on any apps using below sdk 26 Please can you help me to update targetSdkVersion ??

Hello everyone. I updated to WhatsApp 2.12.555 with Beta Updater and contact names not visible in conversations. Group names is still there but contact names is gone. I checked phone's contact and everything still there.

When starting the app the version 3.14 is offered for download and installation. I do this but the installation terminates with the error "App wurde nicht installiert" (German for "app was not installed"), that's it, no further information visible.

There seem to be several other apps with this kind of functionality like this one: https://github.com/2Ra66it/updater-for-spotify

May be an idea to have one application to update applications which offer an official apk download link?

The app crashes when I press the download button before it has loaded the newest WhatsApp version.

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.javiersantos.whatsappbetaupdater.models.Update.getLatestVersion()' on a null object reference at com.javiersantos.whatsappbetaupdater.utils.UtilsAsync$DownloadFile.onPreExecute(UtilsAsync.java:81) at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:604) at android.os.AsyncTask.execute(AsyncTask.java:551) at com.javiersantos.whatsappbetaupdater.activities.MainActivity.toDownload(MainActivity.java:127) at com.javiersantos.whatsappbetaupdater.activities.MainActivity_ViewBinding$1.doClick(MainActivity_ViewBinding.java:44) at butterknife.internal.DebouncingOnClickListener.onClick(DebouncingOnClickListener.java:22) at android.view.View.performClick(View.java:5697) at android.view.View$PerformClick.run(View.java:22526) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:158) at android.app.ActivityThread.main(ActivityThread.java:7224) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

This is a must have feature based on my interest, hope you can add it. I thought issue #22 was based on this. Anyway, the thing is why can WhatsapBetaUpdater download updates in background in notifications much of like how chrome downloads file in notifications. If I have to keep this app on during the whole download its better for me to bookmark the official site and download from it right?

I think you can integrate that feature into the app easily. The option to deleate the apk and close the app automatically after installation of the latest beta can be a good feature. Non-root too.

eg when the "save in "Downloads"" options is chosen in the "Do you want to keep the update?" dialog, trigger the request for permission.