MultiTouchPlaceholderView

Gesture-based image layer, to move it into placeholders (empty content within a bitmap)

This POC shows how to move,rotate, resize and change alpha an inner bitmap within an ImageView using gestures, and when you wish, prepare an output bitmap containing the changes.

Note: the POC uses a library called "android-gesture-detectors" in order to handle the various gestures.

Advantages

• Allows resizing using either 2 fingers or a single one (tap+dragTouch).
• Allows panning
• Allows shoving (moving of 2 fingers up/down)
• Allows rotating using 2 fingers
• You can add any view you wish, and allow the container to draw it.

Sample demo animation

Here's an animation to show what it's capable of:

License

This project is licensed with the 2-clause BSD license, as the library this POC uses is under this license.