Retain voice input across orientation changes. Fixes 2428545

If an configuration change happens when voice is being captured or
processed, it keeps the voice input state intact and reattaches the
recognition view to the input method.

res/layout/recognition_status.xml

@@ -67,6 +67,7 @@
         android:layout_gravity="center_horizontal"
         android:visibility="gone"
         android:indeterminate="true"
+        android:indeterminateOnly="false"
     />
 
 

src/com/android/inputmethod/latin/LatinIME.java

@@ -50,6 +50,8 @@ import android.view.HapticFeedbackConstants;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
+import android.view.ViewParent;
+import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
 import android.view.inputmethod.CompletionInfo;
@@ -221,6 +223,7 @@ public class LatinIME extends InputMethodService
     private VoiceInput mVoiceInput;
     private VoiceResults mVoiceResults = new VoiceResults();
     private long mSwipeTriggerTimeMillis;
+    private boolean mConfigurationChanging;
 
     // For each word, a list of potential replacements, usually from voice.
     private Map<String, List<CharSequence>> mWordToSuggestions =
@@ -371,7 +374,12 @@ public class LatinIME extends InputMethodService
             mOrientation = conf.orientation;
             reloadKeyboards();
         }
+        mConfigurationChanging = true;
         super.onConfigurationChanged(conf);
+        if (mRecognizing) {
+            switchToRecognitionStatusView();
+        }
+        mConfigurationChanging = false;
     }
 
     @Override
@@ -387,21 +395,6 @@ public class LatinIME extends InputMethodService
         return mInputView;
     }
 
-    @Override
-    public void onInitializeInterface() {
-        // Create a new view associated with voice input if the old
-        // view is stuck in another layout (e.g. if switching from
-        // portrait to landscape while speaking)
-        // NOTE: This must be done here because for some reason
-        // onCreateInputView isn't called after an orientation change while
-        // speech rec is in progress.
-        if (mVoiceInput != null && mVoiceInput.getView().getParent() != null) {
-            mVoiceInput.newView();
-        }
-
-        super.onInitializeInterface();
-    }
-
     @Override
     public View onCreateCandidatesView() {
         mKeyboardSwitcher.makeKeyboards(true);
@@ -554,20 +547,16 @@ public class LatinIME extends InputMethodService
     public void onFinishInput() {
         super.onFinishInput();
 
-        if (VOICE_INSTALLED && mAfterVoiceInput) {
+        if (VOICE_INSTALLED && !mConfigurationChanging) {
+            if (mAfterVoiceInput) {
                 mVoiceInput.logInputEnded();
             }
-
-        if (VOICE_INSTALLED) {
             mVoiceInput.flushLogs();
+            mVoiceInput.cancel();
         }
-
         if (mInputView != null) {
             mInputView.closing();
         }
-        if (VOICE_INSTALLED && mRecognizing) {
-            mVoiceInput.cancel();
-        }
     }
 
     @Override
@@ -654,24 +643,22 @@ public class LatinIME extends InputMethodService
 
     @Override
     public void hideWindow() {
-        if (mAfterVoiceInput) mVoiceInput.logInputEnded();
         if (TRACE) Debug.stopMethodTracing();
         if (mOptionsDialog != null && mOptionsDialog.isShowing()) {
             mOptionsDialog.dismiss();
             mOptionsDialog = null;
         }
+        if (!mConfigurationChanging) {
+            if (mAfterVoiceInput) mVoiceInput.logInputEnded();
             if (mVoiceWarningDialog != null && mVoiceWarningDialog.isShowing()) {
                 mVoiceInput.logKeyboardWarningDialogDismissed();
                 mVoiceWarningDialog.dismiss();
                 mVoiceWarningDialog = null;
             }
-        if (mTutorial != null) {
-            mTutorial.close();
-            mTutorial = null;
-        }
             if (VOICE_INSTALLED & mRecognizing) {
                 mVoiceInput.cancel();
             }
+        }
         super.hideWindow();
         TextEntryState.endSession();
     }
@@ -1211,11 +1198,20 @@ public class LatinIME extends InputMethodService
     }
 
     private void switchToRecognitionStatusView() {
+        final boolean configChanged = mConfigurationChanging;
         mHandler.post(new Runnable() {
             public void run() {
                 mRecognizing = true;
-              setInputView(mVoiceInput.getView());
+                View v = mVoiceInput.getView();
+                ViewParent p = v.getParent();
+                if (p != null && p instanceof ViewGroup) {
+                    ((ViewGroup)v.getParent()).removeView(v);
+                }
+                setInputView(v);
                 updateInputViewShown();
+                if (configChanged) {
+                    mVoiceInput.onConfigurationChanged();
+                }
         }});
     }
 

src/com/android/inputmethod/voice/RecognitionView.java

@@ -16,7 +16,12 @@
 
 package com.android.inputmethod.voice;
 
-import com.android.inputmethod.latin.R;
+import java.io.ByteArrayOutputStream;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.ShortBuffer;
+import java.util.ArrayList;
+import java.util.List;
 
 import android.content.ContentResolver;
 import android.content.Context;
@@ -35,14 +40,10 @@ import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup.MarginLayoutParams;
 import android.widget.ImageView;
+import android.widget.ProgressBar;
 import android.widget.TextView;
 
-import java.io.ByteArrayOutputStream;
+import com.android.inputmethod.latin.R;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.nio.ShortBuffer;
-import java.util.ArrayList;
-import java.util.List;
 
 /**
  * The user interface for the "Speak now" and "working" states.
@@ -103,7 +104,6 @@ public class RecognitionView {
         LayoutInflater inflater = (LayoutInflater) context.getSystemService(
             Context.LAYOUT_INFLATER_SERVICE);
         mView = inflater.inflate(R.layout.recognition_status, null);
-
         ContentResolver cr = context.getContentResolver();
         mMinMicrophoneLevel = SettingsUtil.getSettingsFloat(
                 cr, SettingsUtil.LATIN_IME_MIN_MICROPHONE_LEVEL, 15.f);
@@ -139,6 +139,18 @@ public class RecognitionView {
         return mView;
     }
 
+    public void restoreState() {
+        mUiHandler.post(new Runnable() {
+            public void run() {
+                // Restart the spinner
+                if (mState == State.WORKING) {
+                    ((ProgressBar)mProgress).setIndeterminate(false);
+                    ((ProgressBar)mProgress).setIndeterminate(true);
+                }
+            }
+        });
+    }
+
     public void showInitializing() {
         mUiHandler.post(new Runnable() {
             public void run() {

src/com/android/inputmethod/voice/VoiceInput.java

@@ -161,6 +161,14 @@ public class VoiceInput implements OnClickListener {
         mBlacklist.addApp("com.android.setupwizard");
     }
 
+    /**
+     * The configuration of the IME changed and may have caused the views to be layed out
+     * again. Restore the state of the recognition view.
+     */
+    public void onConfigurationChanged() {
+        mRecognitionView.restoreState();
+    }
+
     /**
      * @return true if field is blacklisted for voice
      */