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CraZyLegenD
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Jun 17, 2019
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15 changes: 15 additions & 0 deletions
15
app/src/main/java/com/crazylegend/setofusefulkotlinextensions/MainAbstractActivity.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -142,4 +142,5 @@ class MainApplication : Application() { | |
| //setting the locale | ||
| //LocaleHelper.setLocale(context, "en") | ||
| } | ||
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| } | ||
77 changes: 77 additions & 0 deletions
77
...rc/main/java/com/crazylegend/kotlinextensions/permissionHandlers/BasePermissionManager.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,77 @@ | ||
| package com.crazylegend.kotlinextensions.permissionHandlers | ||
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| import android.content.pm.PackageManager | ||
| import android.os.Bundle | ||
| import androidx.core.content.ContextCompat | ||
| import androidx.fragment.app.Fragment | ||
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| /** | ||
| * Created by hristijan on 6/17/19 to long live and prosper ! | ||
| */ | ||
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| abstract class BasePermissionManager : Fragment() { | ||
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| private val rationalRequest = mutableMapOf<Int, Boolean>() | ||
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| override fun onCreate(savedInstanceState: Bundle?) { | ||
| super.onCreate(savedInstanceState) | ||
| retainInstance = true | ||
| } | ||
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| override fun onRequestPermissionsResult( | ||
| requestCode: Int, | ||
| permissions: Array<out String>, | ||
| grantResults: IntArray | ||
| ) { | ||
| if (grantResults.isNotEmpty() && | ||
| grantResults.all { it == PackageManager.PERMISSION_GRANTED } | ||
| ) { | ||
| onPermissionResult(PermissionResult.PermissionGranted(requestCode)) | ||
| } else if (permissions.any { shouldShowRequestPermissionRationale(it) }) { | ||
| onPermissionResult( | ||
| PermissionResult.PermissionDenied(requestCode, | ||
| permissions.filterIndexed { index, _ -> | ||
| grantResults[index] == PackageManager.PERMISSION_DENIED | ||
| } | ||
| ) | ||
| ) | ||
| } else { | ||
| onPermissionResult( | ||
| PermissionResult.PermissionDeniedPermanently(requestCode, | ||
| permissions.filterIndexed { index, _ -> | ||
| grantResults[index] == PackageManager.PERMISSION_DENIED | ||
| } | ||
| )) | ||
| } | ||
| } | ||
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| protected fun requestPermissions(requestId: Int, vararg permissions: String) { | ||
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| rationalRequest[requestId]?.let { | ||
| requestPermissions(permissions, requestId) | ||
| rationalRequest.remove(requestId) | ||
| return | ||
| } | ||
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| val notGranted = permissions.filter { | ||
| ContextCompat.checkSelfPermission( | ||
| requireActivity(), | ||
| it | ||
| ) != PackageManager.PERMISSION_GRANTED | ||
| }.toTypedArray() | ||
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| when { | ||
| notGranted.isEmpty() -> | ||
| onPermissionResult(PermissionResult.PermissionGranted(requestId)) | ||
| notGranted.any { shouldShowRequestPermissionRationale(it) } -> { | ||
| rationalRequest[requestId] = true | ||
| onPermissionResult(PermissionResult.ShowRationale(requestId)) | ||
| } | ||
| else -> { | ||
| requestPermissions(notGranted, requestId) | ||
| } | ||
| } | ||
| } | ||
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| protected abstract fun onPermissionResult(permissionResult: PermissionResult) | ||
| } |
168 changes: 168 additions & 0 deletions
168
...ns/src/main/java/com/crazylegend/kotlinextensions/permissionHandlers/PermissionManager.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| package com.crazylegend.kotlinextensions.permissionHandlers | ||
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| import android.arch.lifecycle.LiveData | ||
| import android.content.Context | ||
| import android.support.annotation.MainThread | ||
| import androidx.appcompat.app.AppCompatActivity | ||
| import androidx.fragment.app.Fragment | ||
|
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||
|
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| /** | ||
| * Interface definition for a callback to get [LiveData] of [PermissionResult] | ||
| * | ||
| interface PermissionObserver { | ||
| fun setupObserver(permissionResultLiveData: LiveData<PermissionResult>) | ||
| } | ||
| * Implement this interface to get [LiveData] for observing permission request result. | ||
| */ | ||
|
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| /** | ||
| override fun setupObserver(permissionResultLiveData: LiveData<PermissionResult>) { | ||
| permissionResultLiveData.observe(this, Observer<PermissionResult> { | ||
| when (it) { | ||
| is PermissionResult.PermissionGranted -> { | ||
| if (it.requestId == REQUEST_ID) { | ||
| //Add your logic here after user grants permission(s) | ||
| } | ||
| } | ||
| is PermissionResult.PermissionDenied -> { | ||
| if (it.requestId == REQUEST_ID) { | ||
| //Add your logic to handle permission denial | ||
| } | ||
| } | ||
| is PermissionResult.PermissionDeniedPermanently -> { | ||
| if (it.requestId == REQUEST_ID) { | ||
| //Add your logic here if user denied permission(s) permanently. | ||
| //Ideally you should ask user to manually go to settings and enable permission(s) | ||
| } | ||
| } | ||
| is PermissionResult.ShowRational -> { | ||
| if (it.requestId == REQUEST_ID) { | ||
| //If user denied permission frequently then she/he is not clear about why you are asking this permission. | ||
| //This is your chance to explain them why you need permission. | ||
| } | ||
| } | ||
| } | ||
| }) | ||
| } | ||
| * | ||
| */ | ||
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| /** | ||
| * Created by hristijan on 6/17/19 to long live and prosper ! | ||
| */ | ||
|
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| class PermissionManager : BasePermissionManager() { | ||
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| private val permissionResultLiveEvent: SingleLiveEvent<PermissionResult> by lazy { | ||
| SingleLiveEvent<PermissionResult>() | ||
| } | ||
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| override fun onPermissionResult(permissionResult: PermissionResult) { | ||
| permissionResultLiveEvent.postValue(permissionResult) | ||
| } | ||
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| override fun onAttach(context: Context) { | ||
| super.onAttach(context) | ||
| if (parentFragment != null) { | ||
| (parentFragment as PermissionObserver).setupObserver(permissionResultLiveEvent) | ||
| } else { | ||
| (context as PermissionObserver).setupObserver(permissionResultLiveEvent) | ||
| } | ||
| } | ||
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| companion object { | ||
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| private const val TAG = "PermissionManager" | ||
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| /** | ||
| * A static factory method to request permission from activity. | ||
| * Your activity must implement [PermissionObserver] | ||
| * | ||
| * @param activity an instance of [AppCompatActivity] which is also [PermissionObserver] | ||
| * @param requestId Request ID for permission request | ||
| * @param permissions Permission(s) to request | ||
| * | ||
| * @throws [IllegalArgumentException] if your activity doesn't implement [PermissionObserver] | ||
| */ | ||
| @JvmStatic | ||
| @MainThread | ||
| fun requestPermissions( | ||
| activity: AppCompatActivity, | ||
| requestId: Int, | ||
| vararg permissions: String | ||
| ) { | ||
| _requestPermissions( | ||
| activity, | ||
| requestId, | ||
| *permissions | ||
| ) | ||
| } | ||
|
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| /** | ||
| * A static factory method to request permission from fragment. | ||
| * Your fragment must implement [PermissionObserver] | ||
| * | ||
| * @param fragment an instance of [Fragment] which is also [PermissionObserver] | ||
| * @param requestId Request ID for permission request | ||
| * @param permissions Permission(s) to request | ||
| * | ||
| * @throws [IllegalArgumentException] if your fragment doesn't implement [PermissionObserver] | ||
| */ | ||
| @JvmStatic | ||
| @MainThread | ||
| fun requestPermissions( | ||
| fragment: Fragment, | ||
| requestId: Int, | ||
| vararg permissions: String | ||
| ) { | ||
| _requestPermissions( | ||
| fragment, | ||
| requestId, | ||
| *permissions | ||
| ) | ||
| } | ||
|
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| private fun _requestPermissions( | ||
| activityOrFragment: Any, | ||
| requestId: Int, | ||
| vararg permissions: String | ||
| ) { | ||
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| val fragmentManager = if (activityOrFragment is AppCompatActivity) { | ||
| activityOrFragment.supportFragmentManager | ||
| } else { | ||
| (activityOrFragment as Fragment).childFragmentManager | ||
| } | ||
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| if (fragmentManager.findFragmentByTag(TAG) != null) { | ||
| (fragmentManager.findFragmentByTag(TAG) as PermissionManager).requestPermissions( | ||
| requestId, | ||
| *permissions | ||
| ) | ||
| } else { | ||
| if (activityOrFragment !is PermissionObserver) { | ||
| throw IllegalArgumentException( | ||
| "Activity/Fragment must implement PermissionObserver" | ||
| ) | ||
| } else { | ||
| val permissionManager = PermissionManager() | ||
| fragmentManager.beginTransaction().add( | ||
| permissionManager, | ||
| TAG | ||
| ).commitNow() | ||
| permissionManager.requestPermissions(requestId, *permissions) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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|
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| } |
17 changes: 17 additions & 0 deletions
17
...s/src/main/java/com/crazylegend/kotlinextensions/permissionHandlers/PermissionObserver.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| package com.crazylegend.kotlinextensions.permissionHandlers | ||
|
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| import android.arch.lifecycle.LiveData | ||
|
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||
|
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| /** | ||
| * Created by hristijan on 6/17/19 to long live and prosper ! | ||
| */ | ||
|
|
||
| /** | ||
| * Interface definition for a callback to get [LiveData] of [PermissionResult] | ||
| * | ||
| * Implement this interface to get [LiveData] for observing permission request result. | ||
| */ | ||
| interface PermissionObserver { | ||
| fun setupObserver(permissionResultLiveData: LiveData<PermissionResult>) | ||
| } |
20 changes: 20 additions & 0 deletions
20
...ons/src/main/java/com/crazylegend/kotlinextensions/permissionHandlers/PermissionResult.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| package com.crazylegend.kotlinextensions.permissionHandlers | ||
|
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||
|
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| /** | ||
| * Created by hristijan on 6/17/19 to long live and prosper ! | ||
| */ | ||
|
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| sealed class PermissionResult { | ||
| class PermissionGranted(val requestId: Int) : PermissionResult() | ||
| class PermissionDenied( | ||
| val requestId: Int, | ||
| val deniedPermissions: List<String> | ||
| ) : PermissionResult() | ||
|
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| class ShowRationale(val requestId: Int) : PermissionResult() | ||
| class PermissionDeniedPermanently( | ||
| val requestId: Int, | ||
| val permanentlyDeniedPermissions: List<String> | ||
| ) : PermissionResult() | ||
| } |
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