Analysis: Resolve type mismatch type warnings

Warning Message: "Type mismatch: inferred type is Xyz?
but Xyz was expected"

Author: ParaskP7

aztec/src/main/kotlin/org/wordpress/aztec/AztecText.kt

@@ -898,7 +898,9 @@ open class AztecText : AppCompatEditText, TextWatcher, UnknownHtmlSpan.OnUnknown
         history.inputLast = InstanceStateUtils.readAndPurgeTempInstance<String>(INPUT_LAST_KEY, "", savedState.state)
         visibility = customState.getInt(VISIBILITY_KEY)
 
-        initialEditorContentParsedSHA256 = customState.getByteArray(RETAINED_INITIAL_HTML_PARSED_SHA256_KEY)
+        customState.getByteArray(RETAINED_INITIAL_HTML_PARSED_SHA256_KEY)?.let {
+            initialEditorContentParsedSHA256 = it
+        }
         val retainedHtml = InstanceStateUtils.readAndPurgeTempInstance<String>(RETAINED_HTML_KEY, "", savedState.state)
         fromHtml(retainedHtml)
 
@@ -943,9 +945,9 @@ open class AztecText : AppCompatEditText, TextWatcher, UnknownHtmlSpan.OnUnknown
         return false
     }
 
-    override fun onSaveInstanceState(): Parcelable {
+    override fun onSaveInstanceState(): Parcelable? {
         val superState = super.onSaveInstanceState()
-        val savedState = SavedState(superState)
+        val savedState = superState?.let { SavedState(it) }
         val bundle = Bundle()
         InstanceStateUtils.writeTempInstance(context, externalLogger, HISTORY_LIST_KEY, ArrayList<String>(history.historyList), bundle)
         bundle.putInt(HISTORY_CURSOR_KEY, history.historyCursor)
@@ -978,7 +980,7 @@ open class AztecText : AppCompatEditText, TextWatcher, UnknownHtmlSpan.OnUnknown
 
         bundle.putBoolean(IS_MEDIA_ADDED_KEY, isMediaAdded)
 
-        savedState.state = bundle
+        savedState?.state = bundle
         return savedState
     }
 
@@ -988,7 +990,9 @@ open class AztecText : AppCompatEditText, TextWatcher, UnknownHtmlSpan.OnUnknown
         constructor(superState: Parcelable) : super(superState)
 
         constructor(parcel: Parcel) : super(parcel) {
-            state = parcel.readBundle(javaClass.classLoader)
+            parcel.readBundle(javaClass.classLoader)?.let {
+                state = it
+            }
         }
 
         override fun writeToParcel(out: Parcel, flags: Int) {

aztec/src/main/kotlin/org/wordpress/aztec/source/SourceViewEditText.kt

@@ -98,7 +98,9 @@ open class SourceViewEditText : AppCompatEditText, TextWatcher {
         visibility = customState.getInt("visibility")
         val retainedContent = InstanceStateUtils.readAndPurgeTempInstance<String>(RETAINED_CONTENT_KEY, "", savedState.state)
         setText(retainedContent)
-        initialEditorContentParsedSHA256 = customState.getByteArray(AztecText.RETAINED_INITIAL_HTML_PARSED_SHA256_KEY)
+        customState.getByteArray(AztecText.RETAINED_INITIAL_HTML_PARSED_SHA256_KEY)?.let {
+            initialEditorContentParsedSHA256 = it
+        }
     }
 
     // Do not include the content of the editor when saving state to bundle.
@@ -109,15 +111,15 @@ open class SourceViewEditText : AppCompatEditText, TextWatcher {
         return false
     }
 
-    override fun onSaveInstanceState(): Parcelable {
+    override fun onSaveInstanceState(): Parcelable? {
         val bundle = Bundle()
         bundle.putByteArray(org.wordpress.aztec.AztecText.RETAINED_INITIAL_HTML_PARSED_SHA256_KEY,
                 initialEditorContentParsedSHA256)
         InstanceStateUtils.writeTempInstance(context, null, RETAINED_CONTENT_KEY, text.toString(), bundle)
         val superState = super.onSaveInstanceState()
-        val savedState = SavedState(superState)
+        val savedState = superState?.let { SavedState(it) }
         bundle.putInt("visibility", visibility)
-        savedState.state = bundle
+        savedState?.state = bundle
         return savedState
     }
 
@@ -127,7 +129,9 @@ open class SourceViewEditText : AppCompatEditText, TextWatcher {
         constructor(superState: Parcelable) : super(superState)
 
         constructor(parcel: Parcel) : super(parcel) {
-            state = parcel.readBundle(javaClass.classLoader)
+            parcel.readBundle(javaClass.classLoader)?.let {
+                state = it
+            }
         }
 
         override fun writeToParcel(out: Parcel, flags: Int) {
@@ -265,7 +269,7 @@ open class SourceViewEditText : AppCompatEditText, TextWatcher {
         val str: String
 
         if (withCursorTag) {
-            val withCursor = StringBuffer(text)
+            val withCursor = StringBuffer(text.toString())
             if (!isCursorInsideTag()) {
                 withCursor.insert(selectionEnd, "<aztec_cursor></aztec_cursor>")
             } else {

aztec/src/main/kotlin/org/wordpress/aztec/toolbar/AztecToolbar.kt

@@ -378,21 +378,25 @@ class AztecToolbar : FrameLayout, IAztecToolbar, OnMenuItemClickListener {
         isMediaToolbarVisible = restoredState.getBoolean("isMediaToolbarVisible")
         setAdvancedState()
         setupMediaToolbar()
-        editorContentParsedSHA256LastSwitch = restoredState.getByteArray(RETAINED_EDITOR_HTML_PARSED_SHA256_KEY)
-        sourceContentParsedSHA256LastSwitch = restoredState.getByteArray(RETAINED_SOURCE_HTML_PARSED_SHA256_KEY)
+        restoredState.getByteArray(RETAINED_EDITOR_HTML_PARSED_SHA256_KEY)?.let {
+            editorContentParsedSHA256LastSwitch = it
+        }
+        restoredState.getByteArray(RETAINED_SOURCE_HTML_PARSED_SHA256_KEY)?.let {
+            sourceContentParsedSHA256LastSwitch = it
+        }
     }
 
-    override fun onSaveInstanceState(): Parcelable {
+    override fun onSaveInstanceState(): Parcelable? {
         val superState = super.onSaveInstanceState()
-        val savedState = SourceViewEditText.SavedState(superState)
+        val savedState = superState?.let { SourceViewEditText.SavedState(it) }
         val bundle = Bundle()
         bundle.putBoolean("isSourceVisible", sourceEditor?.visibility == View.VISIBLE)
         bundle.putBoolean("isMediaMode", isMediaModeEnabled)
         bundle.putBoolean("isExpanded", isExpanded)
         bundle.putBoolean("isMediaToolbarVisible", isMediaToolbarVisible)
         bundle.putByteArray(RETAINED_EDITOR_HTML_PARSED_SHA256_KEY, editorContentParsedSHA256LastSwitch)
         bundle.putByteArray(RETAINED_SOURCE_HTML_PARSED_SHA256_KEY, sourceContentParsedSHA256LastSwitch)
-        savedState.state = bundle
+        savedState?.state = bundle
         return savedState
     }