This is a simple Android View class which provides basic pinch and zoom capability for images.
Can be used as a replacement for a standard ImageView when you want to include pinch and zoom.
Just a quick note to all those who have posted issues recently, I HAVE seen them but just haven't had a chance to fix them. I'll do my best to get to them ASAP. Thanks for being patient
- Pinch zoom in place (i.e. zoom occurs from point of touch)
- Panning with fling gesture
- Double tap zoom
- Configurable zoom boundaries (min/max)
- Does not support Rotation
- Does not support Pan and Zoom together
- Not all methods of ImageView class are supported (will throw UnsupportedOperationException if strict is true)
- Added double-tap zoom support
- Added support for onClickListener
- Added support for non-image drawables
- Added support for CENTER, CENTER_INSIDE and CENTER_CROP scale types
- Added support for custom OnTouchListener on GestureImageView
- Fixed NPE when no drawable set on view
- Fixed/improved calculation of scale limits
- Setting gesture-image:strict to true will result in UnsupportedOperationException if an unsupported method is called.
- Setting gesture-image:recycle to true will automatically reycle bitmap images when the view is destroyed.
code:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:gesture-image="http://schemas.polites.com/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<com.polites.android.GestureImageView
android:id="@+id/image"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="@drawable/image"
gesture-image:min-scale="0.1"
gesture-image:max-scale="10.0"
gesture-image:strict="false"/>
</LinearLayout>
code:
import com.polites.android.GestureImageView;
import android.app.Activity;
import android.os.Bundle;
import android.view.ViewGroup;
import android.widget.LinearLayout.LayoutParams;
public class SampleActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
GestureImageView view = new GestureImageView(this);
view.setImageResource(R.drawable.image);
view.setLayoutParams(params);
ViewGroup layout = (ViewGroup) findViewById(R.id.layout);
layout.addView(view);
}
}