fix opening .apk files, treat them specially

Author: tibbi

app/src/main/kotlin/com/simplemobiletools/filemanager/adapters/ItemsAdapter.kt

@@ -165,7 +165,7 @@ class ItemsAdapter(activity: SimpleActivity, var fileDirItems: MutableList<FileD
 
     private fun openWith() {
         val file = File(getSelectedMedia().first().path)
-        activity.openFile(Uri.fromFile(file), true)
+        activity.openFile(file, true)
     }
 
     private fun copyMoveTo(isCopyOperation: Boolean) {

app/src/main/kotlin/com/simplemobiletools/filemanager/extensions/Activity.kt

@@ -1,17 +1,37 @@
 package com.simplemobiletools.filemanager.extensions
 
 import android.app.Activity
+import android.content.Intent
 import android.net.Uri
-import com.simplemobiletools.commons.extensions.openFile
-import com.simplemobiletools.commons.extensions.setAs
-import com.simplemobiletools.commons.extensions.shareUris
+import android.support.v4.content.FileProvider
+import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.filemanager.BuildConfig
+import java.io.File
 import java.util.*
 
 fun Activity.shareUris(uris: ArrayList<Uri>) {
     shareUris(uris, BuildConfig.APPLICATION_ID)
 }
 
+fun Activity.openFile(file: File, forceChooser: Boolean) {
+    if (!forceChooser && file.absolutePath.endsWith(".apk", true)) {
+        val uri = if (isNougatPlus()) {
+            FileProvider.getUriForFile(this, "${BuildConfig.APPLICATION_ID}.provider", file)
+        } else {
+            Uri.fromFile(file)
+        }
+
+        Intent().apply {
+            action = Intent.ACTION_VIEW
+            setDataAndType(uri, getMimeTypeFromUri(uri))
+            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+            startActivity(this)
+        }
+    } else {
+        openFile(Uri.fromFile(file), forceChooser)
+    }
+}
+
 fun Activity.openFile(uri: Uri, forceChooser: Boolean) {
     openFile(uri, forceChooser, BuildConfig.APPLICATION_ID)
 }

app/src/main/kotlin/com/simplemobiletools/filemanager/fragments/ItemsFragment.kt

@@ -1,6 +1,5 @@
 package com.simplemobiletools.filemanager.fragments
 
-import android.net.Uri
 import android.os.Bundle
 import android.os.Parcelable
 import android.support.v4.app.Fragment
@@ -220,7 +219,7 @@ class ItemsFragment : Fragment(), ItemsAdapter.ItemOperationsListener, Breadcrum
                 }
             } else {
                 val file = File(path)
-                activity!!.openFile(Uri.fromFile(file), false)
+                activity!!.openFile(file, false)
             }
         }
     }