At times you might want to jump the user to a specific View inside a ViewFlipper on the click of some other View or some such scenario. So let’s say we have a ViewFlipper in our layout resource like this:
<ViewFlipper
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/viewFlipper"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/first">
<!-- more views -->
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/second">
<!-- more views -->
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/third">
<!-- more views -->
</LinearLayout>
</ViewFlipper>
When the Activity loads (is created) it instantiates the ViewFlipper and shows up the first child View (LinearLayout with the ID of first). If we want to programatically move/switch to a particular view position which is not the next one, in this case the third one then all we have to do is this:
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ViewFlipper viewFlipper = (ViewFlipper) findViewById(R.id.viewFlipper); // 2 is the index for the 3rd child viewFlipper.setDisplayedChild(2); // or when you don't know the index but the ID of the view viewFlipper.setDisplayedChild( viewFlipper.indexOfChild(findViewById(R.id.third)) );
Hope that helps!
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Rishabh,
Thanks for the ViewFlipper tutorial. I have a problem though. Can you tell me where I went wrong with your code? I am using Android Studio 1.1.0:
I am getting a error message at:
mViewFlipper.showNext();
mViewFlipper.showPrevious();
and
mGestureDetector.onTouchEvent(event);
Code follows:
import android.app.Activity;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.GestureDetector;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.widget.ImageView;
import android.widget.ViewFlipper;
import android.widget.ViewSwitcher;
public class gesture extends ActionBarActivity {
public class GestureActivity extends Activity {
private ViewFlipper mViewFlipper;
private GestureDetector mGestureDetector;
int[] resources = {
R.drawable.image1,
R.drawable.image2,
R.drawable.image3,
R.drawable.image4
};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_gesture);
// Get the ViewFlipper//
mViewFlipper = (ViewFlipper) findViewById(R.id.viewFlipper);
// Add all the images to the ViewFlipper
for (int i = 0; i e2.getX()) {
mViewFlipper.showNext();
}
// Swipe right (previous)
if (e1.getX() Compilation failed; see the compiler error output for details.