Applied naming convention for util package :art:

1 files changed, 62 insertions, 0 deletions

diff --git a/app/src/main/java/me/texx/Texx/util/PermissionUtil.kt b/app/src/main/java/me/texx/Texx/util/PermissionUtil.kt
new file mode 100644
index 0000000..e31a10b
--- /dev/null
+++ b/app/src/main/java/me/texx/Texx/util/PermissionUtil.kt
@@ -0,0 +1,62 @@
+package me.texx.Texx.util
+
+import android.Manifest.permission.ACCESS_FINE_LOCATION
+import android.Manifest.permission.WRITE_EXTERNAL_STORAGE
+import android.app.Activity
+import android.content.pm.PackageManager
+import android.support.v4.app.ActivityCompat
+import android.support.v4.app.ActivityCompat.finishAffinity
+import android.support.v4.content.ContextCompat
+import org.jetbrains.anko.alert
+
+
+/**
+ * Object with function for asking for permissions
+ */
+object PermissionUtil {
+    /**
+     * Asks for specified permission and starts actions depending on users choose
+     */
+    fun askForPermission(permissionString: String, activity: Activity) {
+        if (ContextCompat.checkSelfPermission(activity, permissionString) != PackageManager.PERMISSION_GRANTED) {
+            if (ActivityCompat.shouldShowRequestPermissionRationale(activity, permissionString)) {
+                activity.alert(getPermissionText(permissionString), "${getPermissionName(permissionString, activity)}-Permission is missing") {
+                    isCancelable = false
+                    negativeButton("Never!") {
+                        finishAffinity(activity)
+                    }
+                    positiveButton("Okay") {
+                        ActivityCompat.requestPermissions(activity, arrayOf(permissionString), 1)
+                    }
+                }.show()
+            } else {
+                ActivityCompat.requestPermissions(activity, arrayOf(permissionString), 1)
+            }
+        }
+    }
+
+    /**
+     * Returns true if permission is granted
+     */
+    fun permissionGranted(permissionString: String, activity: Activity): Boolean {
+        return ContextCompat.checkSelfPermission(activity, permissionString) == PackageManager.PERMISSION_GRANTED
+    }
+
+    private fun getPermissionName(permissionString: String, activity: Activity): String {
+        val packageManager = activity.packageManager
+        val permissionInfo = packageManager.getPermissionInfo(permissionString, 0)
+        val permissionGroupInfo = packageManager.getPermissionGroupInfo(permissionInfo.group, 0)
+        return permissionGroupInfo.loadLabel(packageManager).toString()
+    }
+
+    /**
+     * Gets the text for permission requests
+     */
+    private fun getPermissionText(permissionString: String): String {
+        return when (permissionString) {
+            ACCESS_FINE_LOCATION -> "Optional permission to classify your image by location - deny if you don't want to share the photo's location."
+            WRITE_EXTERNAL_STORAGE -> "We need this permission in order to save your image on you device."
+            else -> "Please allow if you want to use the apps whole potential."
+        }
+    }
+}
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