Android Question Touch Event Coordinates

mjtaryan · Aug 19, 2013

The Touch Event has three parameters (Action, X and Y). What are the reference lines/points for X and Y in the touched object. That is, does X = the object's Left property or its Vertical Center or what? For my purposes, I can't accurately move an object without knowing the precise markers for X and Y. Thanks.

Erel · Aug 20, 2013

See the DraggableView class if you want to move views: http://www.b4x.com/android/forum/threads/18395/#content

The coordinates are relative to the view's upper left corner (0,0).

mjtaryan · Aug 20, 2013

Erel said:
See the DraggableView class if you want to move views: http://www.b4x.com/android/forum/threads/18395/#content

The coordinates are relative to the view's upper left corner (0,0).

Thanks Erel for both the suggestion and the answer to my question.

mjtaryan · Aug 21, 2013

Erel said:
See the DraggableView class if you want to move views: http://www.b4x.com/android/forum/threads/18395/#content

The coordinates are relative to the view's upper left corner (0,0).

Erel,

I've looked at the the DraggableView class thread. And I'm wondering if you would share the code file or will I need to copy it from your post in that thread? Thanks.

Erel · Aug 22, 2013

You should copy the code.

Android Question Touch Event Coordinates

mjtaryan

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Erel

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mjtaryan

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Erel

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