android 自定义带描边的TextView

代码如下：

public class StrokeTextView extends TextView
{
	private TextView outlineTextView = null;
	 
    public StrokeTextView(Context context)
    {
        super(context);
        
        outlineTextView = new TextView(context);
        init();
    }
 
    public StrokeTextView(Context context, AttributeSet attrs) 
    {
        super(context, attrs);
        
        outlineTextView = new TextView(context, attrs);
        init();
    }
 
    public StrokeTextView(Context context, AttributeSet attrs, int defStyle) 
    {
        super(context, attrs, defStyle);
        
        outlineTextView = new TextView(context, attrs, defStyle);
        init();
    }
 
    public void init()
    {
        TextPaint paint = outlineTextView.getPaint();
        paint.setStrokeWidth(3);// 描边宽度
        paint.setStyle(Style.STROKE);
        outlineTextView.setTextColor(Color.parseColor("#45c01a"));// 描边颜色
        outlineTextView.setGravity(getGravity());
    }
 
    @Override
    public void setLayoutParams (ViewGroup.LayoutParams params)
    {
        super.setLayoutParams(params);
        outlineTextView.setLayoutParams(params);
    }
 
    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) 
    {
    	super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    	
        // 设置轮廓文字
    	CharSequence outlineText = outlineTextView.getText();
        if (outlineText == null || !outlineText.equals(this.getText()))
        {
        	outlineTextView.setText(getText());
            postInvalidate();
        }
        outlineTextView.measure(widthMeasureSpec, heightMeasureSpec);
    }
 
    @Override
    protected void onLayout (boolean changed, int left, int top, int right, int bottom)
    {
        super.onLayout(changed, left, top, right, bottom);
        outlineTextView.layout(left, top, right, bottom);
    }
 
    @Override
    protected void onDraw(Canvas canvas)
    {
    	outlineTextView.draw(canvas);
        super.onDraw(canvas);
    }
}

修改代码里的内容可修改描边宽度和颜色，也可以设置成传入参数的动态修改描边的宽度和颜色

最后

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