Thursday, May 28, 2015

Android : Activity with Shared Element Transitions

This post about how to shared the element with transitions between activity . This transition introduced in Lollipop version.

Single Element 


Multiple Element Share



Create Activity with shared elements MainActivity.java

public class MainActivity extends Activity {
  Button secondActBtn;
  ImageView sharedView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        sharedView = (ImageView)findViewById(R.id.imageView1);
        secondActBtn = (Button)findViewById(R.id.button1);
        secondActBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
             //Create Scene Transition
  ActivityOptionsCompat OptionsCompat= ActivityOptionsCompat.makeSceneTransitionAnimation(MainActivity.this, sharedView,"shared_image");
  Intent intent = new Intent(MainActivity.this, SecondActivity.class);
      startActivity(intent, OptionsCompat.toBundle());
}
});
    }
}





Create XML activity_main.xml

Set Transition name to View "shared_image"


<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:background="#ffffff"
    android:layout_height="match_parent"
    tools:context="${relativePackage}.${activityClass}" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Activity 1" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="159dp"
        android:layout_toRightOf="@+id/textView1"
        android:src="@drawable/ic_launcher"
        android:transitionName="shared_image" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView1"
        android:layout_marginTop="99dp"
        android:text="Second Activity" />

</RelativeLayout>


Then Create Second Activity SecondActivity.java

public class SecondActivity extends Activity{

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
     setContentView(R.layout.second_activity);
}
}


Create XML for second Activity   second_activity.xml

Set transition name to your transition view 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
         android:transitionName="shared_image"
        android:layout_height="150dp"
        android:src="@drawable/ic_launcher" />

</LinearLayout>


Style should be android:Theme.Material   
styles.xml
<resources>

  <style name="BaseAppTheme" parent="android:Theme.Material">
  <!-- enable window content transitions -->
  <item name="android:windowContentTransitions">true</item>
</style>

</resources>





Share Multiple Element

public class MainActivity extends Activity {
  Button secondActBtn;
  ImageView sharedView,sharedView1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        sharedView = (ImageView)findViewById(R.id.imageView1);
        sharedView1 = (ImageView)findViewById(R.id.imageView2);
        secondActBtn = (Button)findViewById(R.id.button1);
        secondActBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View vd) {
  //Single Element Share
/*  ActivityOptionsCompat OptionsCompat= ActivityOptionsCompat.makeSceneTransitionAnimation(MainActivity.this, sharedView,"shared_image");
  Intent intent = new Intent(MainActivity.this, SecondActivity.class);
      startActivity(intent, OptionsCompat.toBundle());*/
//Multi Element Share 
View v = (ImageView)findViewById(R.id.imageView1);
View v2 = (ImageView)findViewById(R.id.imageView2);
Pair<View, String> p1 = Pair.create(v, "shared_image");
Pair<View, String> p2 = Pair.create(v2, "shared_image1");
@SuppressWarnings("unchecked")
ActivityOptionsCompat OptionsCompat= ActivityOptionsCompat.makeSceneTransitionAnimation(MainActivity.this, p1,  p2);
  Intent intent = new Intent(MainActivity.this, SecondActivity.class);
      startActivity(intent, OptionsCompat.toBundle());
     
 
}
});
    }

}



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