Android的自定义绘制对象范围
问题描述:
我写一个自定义绘制对象,在一个位图文字:
I'm write a custom Drawable, a text over a bitmap:
@Override
public void draw(Canvas canvas) {
canvas.drawBitmap(badge, matrix, null);
canvas.drawText(count, size / 2, size / 2 + (text_size) / 2 , p);
}
当我用我的绘制在ImageView的,它的罚款。
When I use my drawable in an imageView, it's fine.
但是,如果我用这个有一个TextView(化合物绘)这是alignement是错误的。
But if I use this with a textview (compound drawable) it's alignement is wrong.
我都尝试setCompoundDrawablesWithIntrinsicBounds和setCompoundDrawables
I tried both setCompoundDrawablesWithIntrinsicBounds and setCompoundDrawables
同样的结果,我错过了什么?
Same results, what did I miss ?
感谢。
答
我设法得到右对齐(我是绘制一个圆/平方米这么宽==高):
I manage to get the right alignment (my drawable is a circle/square so width == height):
在我Custom_Drawable构造函数:
In my Custom_Drawable ctor:
Custom_Drawable(int size) {
this.size = size;
}
的onDraw方法:
onDraw method:
@Override
public void draw(Canvas canvas) {
// draw here
setBounds(0, 0, this.size, this.size);
}
在设置绘制:
b.setCompoundDrawables(new Custom_Drawable(25), null, null, null);