adding Leak Canary

app/build.gradle

@@ -31,6 +31,13 @@ android {
     }
 }
 
+ext {
+    leakCanaryVersion = '1.5.4'
+}
+
 dependencies {
     implementation 'com.simplemobiletools:commons:3.2.19'
+
+    debugImplementation "com.squareup.leakcanary:leakcanary-android:$leakCanaryVersion"
+    releaseImplementation "com.squareup.leakcanary:leakcanary-android-no-op:$leakCanaryVersion"
 }

app/src/main/AndroidManifest.xml

@@ -8,6 +8,7 @@
     <uses-permission android:name="android.permission.CALL_PHONE"/>
     <uses-permission android:name="android.permission.READ_CONTACTS"/>
     <uses-permission android:name="android.permission.WRITE_CONTACTS"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 
     <uses-permission
         android:name="android.permission.USE_FINGERPRINT"

app/src/main/kotlin/com/simplemobiletools/contacts/App.kt

@@ -2,10 +2,18 @@ package com.simplemobiletools.contacts
 
 import android.app.Application
 import com.simplemobiletools.commons.extensions.checkUseEnglish
+import com.squareup.leakcanary.LeakCanary
 
 class App : Application() {
     override fun onCreate() {
         super.onCreate()
+        if (BuildConfig.DEBUG) {
+            if (LeakCanary.isInAnalyzerProcess(this)) {
+                return
+            }
+            LeakCanary.install(this)
+        }
+
         checkUseEnglish()
     }
 }

app/src/main/kotlin/com/simplemobiletools/contacts/helpers/ContactsHelper.kt

@@ -55,6 +55,7 @@ class ContactsHelper(val activity: BaseSimpleActivity) {
                 selection += " AND ${ContactsContract.RawContacts.ACCOUNT_NAME} IN ($questionMarks)"
                 selectionArgs += sources.toTypedArray()
             }
+
             val sortOrder = getSortString()
             var cursor: Cursor? = null
             try {