I have try out a lot of research to rotate my imageview picture. Still not working . Bellow have my app screen shoot . I wish to have clockwise rotation. Any idea to do that ? I have edit the previous code and this is the current code:
imb_rotate = (ImageButton) findViewById(R.id.imb_rotate);
imb_rotate.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Matrix matrix=new Matrix();
imgView.setScaleType(ScaleType.MATRIX); //required
matrix.postRotate(90);
imgView.setImageMatrix(matrix);
}
});
The following link is the image of my apps: https://plus.google.com/u/0/photos?pid=5991339872494743442&oid=114816496239615013742 as you can see the tin are actually horizontal . I wish when I press the rotate button it can become vertical.
You can use this class to rotate the image:
public class RotateImageView extends ImageView {
private static Animation mRotation;
public boolean isAnimating = false;
public RotateImageView(Context context) {
super(context);
Init(null);
}
public RotateImageView(Context context, AttributeSet attrs) {
super(context, attrs);
Init(attrs);
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public RotateImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
Init(attrs);
}
private void Init(AttributeSet attrs) {
startAnimation();
}
public void startAnimation() {
if(!isAnimating){
if (mRotation == null) {
mRotation = AnimationUtils.loadAnimation(getContext(), R.anim.rotate);
mRotation.setRepeatCount(Animation.INFINITE);
}
this.startAnimation(mRotation);
isAnimating = true;
}
}
public void stopAnimation() {
if (isAnimating){
mRotation.cancel();
isAnimating = false;
}
}
@Override
public void setVisibility(int visibility) {
if (visibility == GONE || visibility == INVISIBLE) {
this.clearAnimation();
} else if (visibility == VISIBLE) {
this.startAnimation(mRotation);
}
super.setVisibility(visibility);
}
}
then :
//global var
static RotateImageView rotateimageview ;
//onCreate() function
rotateimageview = new RotateImageView(getActivity());
//inside your function(ex. onClickListener())
rotateimageview.startAnimation();
//or
rotateimageview.stopAnimation();
your layout.xml :
<yourname.RotateImageView
android:id="@+id/rotateimageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/yourimage"
/>
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