InjectDocumentsProvider [Feedback]

[drogga]

@AbdurazaaqMohammed
https://github.com/AbdurazaaqMohammed/InjectDocumentsProvider
If I was on your place, in the ReadMe - provider code example - I would've mentioned that it's not a standard one to copy paste, because you clearly grabbed this android:authorities="com.andatsoft.myapk.fwa.MTDataFilesProvider" from the My APK app, but then in the follow up images you show Geode as an example, so I would've made it more consistent.

Samsung also hides the Files app shortcut from the launcher (they replace it with their own junk-y one), you can mention it, along with Xiaomi if you want, since it's a more popular brand.

You can also add a screenshot(s) from your app ;)

BTW, using the Launch button crashes the app, because the package name of my Files app is different than the one you coded and the app is expecting, mine is: com.android.documentsui and it should either launch com.android.documentsui.LauncherActivity or if that fails com.android.documentsui.files.FilesActivity, depending on which activity is not private & exported (varies). I've modded it using MT to remove "google" and now it works here on A.8.1.
There are some systems without the "Files" app, like a A.11 car head unit, so your app will crash there as well, other apps can call/use other file managers, like Root Explorer/Explorer, MT Manager, ZArchiver, etc.... (they let you pick which if you have more than one that can handle the file pick action)

The crash:

FATAL EXCEPTION: main
Process: com.AbdurazaaqMohammed.InjectDocumentsProvider, PID: 19736
android.content.ActivityNotFoundException: Unable to find explicit activity class {com.google.android.documentsui/com.android.documentsui.files.FilesActivity}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1933)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1616)
at android.app.Activity.startActivityForResult(Activity.java:4497)
at android.app.Activity.startActivityForResult(Activity.java:4455)
at android.app.Activity.startActivity(Activity.java:4816)
at android.app.Activity.startActivity(Activity.java:4784)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.openSystemFilesActivity(MainActivity.java:113)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.lambda$onCreate$1$MainActivity(MainActivity.java:57)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity$$ExternalSyntheticLambda1.onClick(Unknown Source:2)
at android.view.View.performClick(View.java:6294)
at android.view.View$PerformClick.run(View.java:24770)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:463)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

[drogga]

When the Files app is disabled or missing and Pick File is pressed:

FATAL EXCEPTION: main
Process: com.AbdurazaaqMohammed.InjectDocumentsProvider, PID: 10428
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.OPEN_DOCUMENT cat=[android.intent.category.OPENABLE] typ=/ (has extras) }
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1937)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1616)
at android.app.Activity.startActivityForResult(Activity.java:4497)
at android.app.Activity.startActivityForResult(Activity.java:4455)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.openFilePickerToSelectFile(MainActivity.java:87)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.lambda$onCreate$0$MainActivity(MainActivity.java:61)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity$$ExternalSyntheticLambda0.onClick(Unknown Source:2)
at android.view.View.performClick(View.java:6294)
at android.view.View$PerformClick.run(View.java:24770)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:463)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

---

APK > Open With IDP from a File Manager:

FATAL EXCEPTION: main
Process: com.AbdurazaaqMohammed.InjectDocumentsProvider, PID: 10616
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.AbdurazaaqMohammed.InjectDocumentsProvider/com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity}: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.CREATE_DOCUMENT cat=[android.intent.category.OPENABLE] typ=application/vnd.android.package-archive (has extras) }
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:463)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.CREATE_DOCUMENT cat=[android.intent.category.OPENABLE] typ=application/vnd.android.package-archive (has extras) }
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1937)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1616)
at android.app.Activity.startActivityForResult(Activity.java:4497)
at android.app.Activity.startActivityForResult(Activity.java:4455)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.openFilePickerToSaveFile(MainActivity.java:112)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.onCreate(MainActivity.java:76)
at android.app.Activity.performCreate(Activity.java:7019)
at android.app.Activity.performCreate(Activity.java:7010)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731)
... 9 more

---

When enabling Files and launching IDP from the launcher:

FATAL EXCEPTION: main
Process: com.AbdurazaaqMohammed.InjectDocumentsProvider, PID: 10767
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.AbdurazaaqMohammed.InjectDocumentsProvider/com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity}: java.lang.SecurityException: Permission Denial: opening provider l.۠ۗۢ from ProcessRecord{afaa8d 10767:com.AbdurazaaqMohammed.InjectDocumentsProvider/u0a73} (pid=10767, uid=10073) that is not exported from UID 10078
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:463)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.SecurityException: Permission Denial: opening provider l.۠ۗۢ from ProcessRecord{afaa8d 10767:com.AbdurazaaqMohammed.InjectDocumentsProvider/u0a73} (pid=10767, uid=10073) that is not exported from UID 10078
at android.os.Parcel.readException(Parcel.java:2013)
at android.os.Parcel.readException(Parcel.java:1959)
at android.app.IActivityManager$Stub$Proxy.getContentProvider(IActivityManager.java:4760)
at android.app.ActivityThread.acquireProvider(ActivityThread.java:5836)
at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:2526)
at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1780)
at android.content.ContentResolver.query(ContentResolver.java:738)
at android.content.ContentResolver.query(ContentResolver.java:704)
at android.content.ContentResolver.query(ContentResolver.java:662)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.getOriginalFileName(MainActivity.java:173)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.openFilePickerToSaveFile(MainActivity.java:111)
at com.AbdurazaaqMohammed.InjectDocumentsProvider.MainActivity.onCreate(MainActivity.java:76)
at android.app.Activity.performCreate(Activity.java:7019)
at android.app.Activity.performCreate(Activity.java:7010)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731)
... 9 more

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I hope you understand that this is done on purpose to simulate the (real) cases where and when the Files app is missing and to avoid such crashes in future.