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="https://schemas.android.com/apk/res/android" xmlns:gesture-image="https://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); } }