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apksignaturekill's Issues

Can't select APK on Android 12 and up

I encountered an issue selecting APK on Android 12 and up that I don't know how to fix them

  1. File picker can't see any apk files even they are present

  2. When inputting the apk path manually, the app instantly crashes, throwing this error.

Process: com.mcal.apksignkill, PID: 9590
java.lang.NullPointerException: Attempt to read from field 'android.content.pm.ApplicationInfo android.content.pm.PackageInfo.applicationInfo' on a null object reference in method 'void com.mcal.apksignkill.utils.MyAppInfo.<init>(android.content.Context, java.lang.String)'
	at com.mcal.apksignkill.utils.MyAppInfo.<init>(MyAppInfo.java:25)
	at com.mcal.apksignkill.fragments.HomeFragment$1.afterTextChanged(HomeFragment.java:93)
	at android.widget.TextView.sendAfterTextChanged(TextView.java:12365)
	at android.widget.TextView$ChangeWatcher.afterTextChanged(TextView.java:15851)
	at android.text.SpannableStringBuilder.sendAfterTextChanged(SpannableStringBuilder.java:1278)
	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:578)
	at androidx.emoji2.text.SpannableBuilder.replace(SpannableBuilder.java:314)
	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:508)
	at androidx.emoji2.text.SpannableBuilder.replace(SpannableBuilder.java:304)
	at androidx.emoji2.text.SpannableBuilder.replace(SpannableBuilder.java:48)
	at android.view.inputmethod.BaseInputConnection.replaceTextInternal(BaseInputConnection.java:1026)
	at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:962)
	at android.view.inputmethod.BaseInputConnection.commitText(BaseInputConnection.java:241)
	at com.android.internal.inputmethod.EditableInputConnection.commitText(EditableInputConnection.java:222)
	at android.view.inputmethod.InputConnectionWrapper.commitText(InputConnectionWrapper.java:207)
	at android.view.inputmethod.RemoteInputConnectionImpl.lambda$commitText$16(RemoteInputConnectionImpl.java:630)
	at android.view.inputmethod.RemoteInputConnectionImpl.$r8$lambda$DuD803urSTti1OmMx2Hq0yX1sSU(Unknown Source:0)
	at android.view.inputmethod.RemoteInputConnectionImpl$$ExternalSyntheticLambda15.run(Unknown Source:8)
	at android.os.Handler.handleCallback(Handler.java:958)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loopOnce(Looper.java:205)
	at android.os.Looper.loop(Looper.java:294)
	at android.app.ActivityThread.main(ActivityThread.java:8177)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:971)

[Question] Will this re-enable Google Sign-in?

I haven't taken a deep dive into your methodology (yet). I'm curious how that differs to ApkSignatureKiller. But my real question is whether it brings a new capability.. the ability to pass whatever apk validation occurs during the Google Sign-in login process?

Let use Join as an example..

apktool d /path/to/join.apk
apktool b /path/to/join -o /path/to/modified_join_unsigned.apk

apksigner sign --v1-signing-enabled true --v2-signing-enabled true --v3-signing-enabled true --ks "$keystore_file" --ks-key-alias "$keystore_alias" --ks-pass "pass:${keystore_pass}" --pass-encoding "utf-8" --key-pass "pass:${key_pass}" --out /path/to/modified_join_signed.apk /path/to/modified_join_unsigned.apk
  • a Google Sign-in dialog gates the launcher activity
  • without making any modifications to the apk aside from changing its signature, Google Sign-in fails.. as indicated by a toast to display the error message

Using ApkSignatureKiller, this still doesn't work; Google Play Services must detect that the apk isn't signed by the original developer.. though I'm not sure how this all plays out. If anybody reading this understands the flow (at a high level).. I'd really appreciate a quick summary.

not installed

At a51 samsung android 11 Could not install I changed the signature of the app with mt manager to v1, v2, v3 and then it was installed and executed

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