I've got a problem which I don't know how to solve. Please, help me if you can. In my app I have to create a custom view extended View. In this view I should draw a lot of rectangles and I create them by canvas.drawRect or canvas.drawRoundRect. It's clear. But I want to create a compound design of these rectangles (with gradients, corners, paddings and etc.) and I want to carry out these settings (gradients, corners, paddings and etc.) in XML. How can I do it? The problem is that I determine shape in XML I can use this drawable only as background but when I draw a rectangle I can't set background for rectangle. Maybe there are another way to solve the problem. Could I use the XML shape object for setting not only as background but a view object with x,y-coordinates and width, height?
Edit: I can draw rectangle:
canvas.drawRect(x1, y1, x2, y2, paint);
but I have rectangle settings in XML like this:
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<!-- Specify a gradient for the background -->
<gradient
android:angle="90"
android:startColor="#55000066"
android:centerColor="#FFFFFF"
android:endColor="#55000066" />
<!-- Specify a dark blue border -->
<stroke
android:width="2dp"
android:color="#000066" />
<!-- Specify the margins that all content inside the drawable must adhere to -->
<padding
android:left="5dp"
android:right="5dp"
android:top="5dp"
android:bottom="5dp" />
<corners
android:topLeftRadius="10dp"
android:topRightRadius="10dp"
android:bottomLeftRadius="10dp"
android:bottomRightRadius="10dp" />
</shape>
and I want to apply this settings to my rectangle. How?
You can load and use the XML defined drawable from code like so:
public class CustomView extends View {
Drawable shape;
public CustomView(Context context) {
super(context);
shape = context.getResources().getDrawable(R.drawable.shape);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
shape.setBounds(left, top, right, bottom);
shape.draw(canvas)
}
// ... Additional methods omitted for brevity
}