从Drawable创建一个没有像素透明度的形状

Question

I'm trying to create a Shape or a Rect from a Drawable but without the transparency of the Drawable.

As you can see here, the following button has transparency on its borders. My issue is that I'm creating a panel Editor and I want to avoid superposition of widget when I move a widget. To achieve this, I have used the method : Rect.intersects(Rect)

However, the Rect used is the shape of the entire drawable(with the transparency) and it's create too much empty space.

EDIT: more informations

Here is my Editor, I succed to avoid superposition but the superposition is base on the Shape of the drawable (picture). And the picture's tranparency create some empty space on my panel.

and my check collision code, where tempRect is the current Moving widget

public boolean checkCollision(Rect tempRect,ArrayList<IHMObject> listWidget) {
    float dimen = activity.getResources().getDimension(R.dimen.abc_action_bar_default_height)+ 38;
    for(IHMObject widget  :listWidget ){
        int[]location = new int[2];
        View v =(View)widget.getView();
        v.getLocationInWindow(location);
        //vérifier la postion du widget en fonctions des autres widgets de l'IHM
        Rect staticRect = new Rect(location[0],location[1]-(int)dimen,location[0]+v.getWidth(),location[1]+v.getHeight()-(int)dimen);
        if (this.id!=widget.id){
            if (staticRect.intersect(tempRect)) {
                //il y a une collision entre les deux rectangles
                return true;
            }
        }

    }
    return false;
}

Answer 1

Create a round_shape.xml file in drawable folder like below


<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" android:padding="10dp">
    <!-- you can use any color you want I used here gray color-->
    <solid android:color="#ABABAB"/> 
    <corners android:radius="10dp"/>
</shape>

Set this Draweble like below

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:padding="10dp"
    android:textColor="#ffffff"
    android:src="@drawable/round_shape" // here is your round_shape
    android:background="#000000"
    android:text="Buttons" />