/**
* drawableLeft與文本一塊兒居中顯示
*
*
@author
農民伯伯
*
@see
http://www.cnblogs.com/over140/p/3464348.html
*
*/
public
class DrawableCenterTextView
extends TextView {
public DrawableCenterTextView(Context context, AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
}
public DrawableCenterTextView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public DrawableCenterTextView(Context context) {
super(context);
}
@Override
protected
void onDraw(Canvas canvas) {
Drawable[] drawables = getCompoundDrawables();
if (drawables !=
null) {
Drawable drawableLeft = drawables[0];
if (drawableLeft !=
null) {
float textWidth = getPaint().measureText(getText().toString());
int drawablePadding = getCompoundDrawablePadding();
int drawableWidth = 0;
drawableWidth = drawableLeft.getIntrinsicWidth();
float bodyWidth = textWidth + drawableWidth + drawablePadding;
canvas.translate((getWidth() - bodyWidth) / 2, 0);
}
}
super.onDraw(canvas);
}
}