Small fixes and test

projects/MotionLayoutVerification/app/src/main/AndroidManifest.xml

@@ -24,7 +24,18 @@
             android:configChanges="orientation|screenSize"/>
         <activity android:name=".RotationAngular"
             android:configChanges="orientation|screenSize"/>
-        <activity android:name=".CustomSwipeClick" />
+         <activity android:name=".CustomSwipeClick" />
+         <activity android:name=".RotationToolbar"
+            android:label="To Run Disable Animation"
+        android:configChanges="orientation|screenSize"/>
+        <activity android:name=".RotationRotateToToolbar"
+            android:label="To Run Disable Animation"
+            android:configChanges="orientation|screenSize"/>
+        <activity android:name=".ConstraintSetVerify"
+            android:label="Test ConstraintSet on ConstraintLayout"
+            />
+        <activity android:name=".CheckCallbackActivity" />
+
     </application>
 
 </manifest>

projects/MotionLayoutVerification/app/src/main/java/android/support/constraint/app/CheckCallbackActivity.java

@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.support.constraint.app;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.constraintlayout.motion.widget.Debug;
+import androidx.constraintlayout.motion.widget.MotionLayout;
+import androidx.constraintlayout.motion.widget.TransitionAdapter;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+// used with verification_042.xml
+public class CheckCallbackActivity extends AppCompatActivity {
+    private static final String TAG = "CustomSwipeClick";
+    String layout_name;
+    MotionLayout mMotionLayout;
+
+    @Override
+    protected void onCreate(@Nullable  Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        Bundle extra = getIntent().getExtras();
+        String prelayout = extra.getString(Utils.KEY);
+        setTitle(layout_name = prelayout);
+        Context ctx = getApplicationContext();
+        int id = ctx.getResources().getIdentifier(prelayout, "layout", ctx.getPackageName());
+        setContentView(id);
+        mMotionLayout = Utils.findMotionLayout(this);
+
+        populateRecyclerView();
+
+        TextView text = findViewById(R.id.text);
+        if (text != null) {
+            mMotionLayout.setTransitionListener(new TransitionAdapter() {
+                @Override
+                public void onTransitionCompleted(MotionLayout motionLayout, int currentId) {
+                    text.setText((currentId == R.id.expanded) ? "cb down" : "cb up");
+                    Log.v(TAG, Debug.getLoc() + " "+Debug.getName(getApplicationContext(),currentId));
+                }
+
+            });
+        }
+    }
+    // ================================= Recycler support ====================================
+    private void populateRecyclerView() {
+        RecyclerView rview = Utils.findView(this, RecyclerView.class);
+        if (rview == null) {
+            return;
+        }
+
+        rview.setLayoutManager(new LinearLayoutManager(this));
+        rview.setAdapter(new MyAdapter());
+    }
+
+    static class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
+        private String[] mDataset = new String[300];
+        {
+            for (int i = 0; i < mDataset.length; i++) {
+                mDataset[i] = "hello world 1234567890  ".substring(0,12+(i%10));
+            }
+        }
+
+        @Override
+        public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent,  int viewType) {
+            TextView tv = new TextView(parent.getContext());
+            tv.setPadding(10, 10, 10, 5);
+            tv.setTextSize(30);
+            RecyclerView.ViewHolder vh = new RecyclerView.ViewHolder(tv){};
+            return vh;
+        }
+
+        @Override
+        public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+            ((TextView)holder.itemView).setText(mDataset[position]);
+        }
+
+        @Override
+        public int getItemCount() {
+            return mDataset.length;
+        }
+    }
+
+
+
+}

projects/MotionLayoutVerification/app/src/main/java/android/support/constraint/app/ConstraintSetVerify.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.support.constraint.app;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.constraintlayout.widget.ConstraintLayout;
+import androidx.constraintlayout.widget.ConstraintSet;
+
+public class ConstraintSetVerify extends AppCompatActivity {
+    private static final String TAG = "ConstraintSetVerify";
+    String layout_name;
+    ConstraintLayout mConstraintLayout;
+
+    @Override
+    protected void onCreate(@Nullable @org.jetbrains.annotations.Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        Bundle extra = getIntent().getExtras();
+        String prelayout = extra.getString(Utils.KEY);
+        layout_name = prelayout;
+        Context ctx = getApplicationContext();
+        int id = ctx.getResources().getIdentifier(prelayout, "layout", ctx.getPackageName());
+        ActionBar bar = getSupportActionBar();
+        if (bar != null) {
+            bar.hide();
+        }
+        setContentView(id);
+        mConstraintLayout = Utils.findConstraintLayout(this);
+        findViewById(R.id.showContent).setOnClickListener( (v)->showContent(v));
+        findViewById(R.id.showSplash).setOnClickListener( (v)->showSplash(v));
+    }
+   public void showSplash(View v) {
+       ConstraintSet set = new ConstraintSet();
+       set.clone(mConstraintLayout);
+       set.setVerticalBias(R.id.logo, 0.5f);
+       set.setVisibility(R.id.splashScreen, View.VISIBLE);
+       set.setVisibility(R.id.contentGroup, View.GONE);
+       set.applyTo(mConstraintLayout);
+   }
+    public void showContent(View v) {
+
+        ConstraintSet set = new ConstraintSet();
+        set.clone(mConstraintLayout);
+        set.setVerticalBias(R.id.logo, 0.3f);
+        set.setVisibility(R.id.splashScreen, View.GONE);
+        set.setVisibility(R.id.contentGroup, View.VISIBLE);
+        set.applyTo(mConstraintLayout);
+
+    }
+
+}