自定义带红点的radioButton

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 <com.ycx.driver.utils.widget.view.CustomRadioButton            android:layout_width="200dp"            android:layout_height="200dp"            android:background="#00ffff"            android:button="@null"            android:padding="50dp"            android:drawablePadding="10dp"            android:text="个人"            customRadioButton:drawableTop="@drawable/tab_profile_click" />

 <declare-styleable name="CustomRadioButton">        <attr name="drawableTop" format="reference|color" />    </declare-styleable>

public class CustomRadioButton extends RadioButton {    Paint paint = new Paint();    private int redius = 10;    private Bitmap bitmap;    private int bitmapWidth;    private int bitmapHeight;    public CustomRadioButton(Context context) {        super(context);        init(context, null);    }    public CustomRadioButton(Context context, AttributeSet attrs) {        super(context, attrs);        init(context, attrs);    }    public CustomRadioButton(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        init(context, attrs);    }    private void init(Context context, AttributeSet attrs) {        paint = new Paint();        paint.setColor(Color.BLUE);        paint.setStyle(Paint.Style.FILL);        paint.setTextSize(getTextSize());        setGravity(Gravity.CENTER_HORIZONTAL);        try {            // Popup信息            bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.header_man);            if (bitmap != null) {                bitmapWidth = bitmap.getWidth();                bitmapHeight = bitmap.getHeight();            }        } catch (Throwable e) {        }    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        super.onMeasure(widthMeasureSpec, heightMeasureSpec);        int widthMode = MeasureSpec.getMode(widthMeasureSpec);        int widthSize = MeasureSpec.getSize(widthMeasureSpec);        int heightMode = MeasureSpec.getMode(heightMeasureSpec);        int heightSize = MeasureSpec.getSize(heightMeasureSpec);        int width;        int height;        if (widthMode == MeasureSpec.EXACTLY) {            width = widthSize + redius;        } else {            width = 200 + redius;        }        if (heightMode == MeasureSpec.EXACTLY) {            height = heightSize + redius;        } else {            height = 200 + redius;        }        setMeasuredDimension(width, height);    }    @Override    protected void onDraw(Canvas canvas) {//        super.onDraw(canvas);        int left = (getWidth() - bitmapWidth) / 2;        int top = (getHeight() - bitmapHeight) / 2;        int right = (getWidth() + bitmapWidth) / 2;        int bottom = (getHeight() + bitmapHeight) / 2;        if (left > 0 && top > 0 && bitmap != null) {            canvas.drawBitmap(bitmap, left, top, null);        }        //绘制文字        float textWidth = paint.measureText(getText().toString());        canvas.drawText(getText().toString(), getWidth() / 2 - textWidth / 2, bottom +40, paint);        paint.setColor(Color.RED);        canvas.drawCircle(right, top, redius, paint);    }

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