Hi, do any try to flip between the views where 1 of view is
SurfaceView.
What I tried is:
1. Made a simple view flipper.
2. Added touch listner.
a) with 2 image views it works fine
b) change the first view for SurfaceView as a result surface image
never moved from screen.
Can anybody suggest ?
Thanks in advanced.
--- sources:
CustomSurfaceView.java
package com.viewflipper;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public class CustomSurfaceView extends SurfaceView implements
SurfaceHolder.Callback {
private Bitmap bitmap;
private SurfaceHolder surfaceHolder;
public CustomSurfaceView(Context context, AttributeSet attrs, int
defStyle) {
super(context, attrs, defStyle);
initHolder(context);
}
public CustomSurfaceView(Context context, AttributeSet attrs) {
super(context, attrs);
initHolder(context);
}
public CustomSurfaceView(Context context) {
super(context);
initHolder(context);
}
private void initHolder(Context context) {
bitmap = BitmapFactory.decodeResource(context.getResources(),
R.drawable.surface);
surfaceHolder = getHolder();
surfaceHolder.addCallback(this);
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int
width, int height) {
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Canvas c = null;
try {
c = surfaceHolder.lockCanvas();
c.drawBitmap(bitmap, 0, 0, null);
} finally {
surfaceHolder.unlockCanvasAndPost(c);
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
}
@Override
public void draw(Canvas canvas) {
}
@Override
protected void onDraw(Canvas canvas) {
}
}
ViewFlipper.java
package com.viewflipper;
import android.content.Context;
import android.util.AttributeSet;
import android.view.animation.AnimationUtils;
import android.widget.ViewAnimator;
public class ViewFlipper extends ViewAnimator {
private boolean isFirst = true;
private Context context;
public ViewFlipper(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
}
public ViewFlipper(Context context) {
super(context);
this.context = context;
}
/**
* Change view.
*/
public void changeView() {
if (isFirst) {
isFirst = false;
setInAnimation(AnimationUtils.makeInAnimation(context,
false));
setOutAnimation(AnimationUtils.makeOutAnimation(context,
false));
showNext();
} else {
isFirst = true;
setInAnimation(AnimationUtils.makeInAnimation(context,
true));
setOutAnimation(AnimationUtils.makeOutAnimation(context,
true));
showPrevious();
}
}
}
FlipperActivity.java
package com.viewflipper;
import android.app.Activity;
import android.os.Bundle;
import android.view.MotionEvent;
public class FlipperActivity extends Activity {
private ViewFlipper flipper;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
flipper = (ViewFlipper) findViewById(R.id.flipper);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (MotionEvent.ACTION_UP == event.getAction()) {
flipper.changeView();
}
return false;
}
}
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