/**
 * 解決文字和drawableleft和文字一起時不居中。要設定  android:background="@null"android:button="@null"
 * @author zhousheng
 *
 */
public class MDMRadioButton extends RadioButton {

	public MDMRadioButton(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);
		// TODO Auto-generated constructor stub
	}

	public MDMRadioButton(Context context, AttributeSet attrs) {
		super(context, attrs);
		// TODO Auto-generated constructor stub
	}

	public MDMRadioButton(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
	}

	@Override
	protected void onDraw(Canvas canvas) {
		//獲取設定的圖片
		Drawable[] drawables = getCompoundDrawables();
		if (drawables != null) {
			//第一個是left
			Drawable drawableLeft = drawables[0];
			if (drawableLeft != null) {
				//獲取文字的寬度
				float textWidth = getPaint().measureText(getText().toString());
				int drawablePadding = getCompoundDrawablePadding();
				int drawableWidth = 0;
				drawableWidth = drawableLeft.getIntrinsicWidth();
				float bodyWidth = textWidth + drawableWidth + drawablePadding;
				int y = getWidth();
				canvas.translate((getWidth() - bodyWidth) / 2, 0);
			}
		}
		super.onDraw(canvas);
	}
}
 

使用：

  <com.maidoumi.merchant.widget.MDMRadioButton
                android:id="@+id/rb_main_table"
                style="@style/main_radiobtn_style"
                android:checked="true"
                android:drawableLeft="@drawable/ic_back"
                android:text="@string/main_table" />