Android使用view实现倒计时控件-创新互联
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自定义TextView
文字展示
public class StrokeTextView extends TextView { private TextView borderText = null;///用于描边的TextView private Context mContext; public StrokeTextView(Context context) { super(context); mContext = context; borderText = new TextView(context); init(); } public StrokeTextView(Context context, AttributeSet attrs) { super(context, attrs); mContext = context; borderText = new TextView(context, attrs); init(); } public StrokeTextView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); mContext = context; borderText = new TextView(context, attrs, defStyle); init(); } public void init() { TextPaint tp1 = borderText.getPaint(); tp1.setStrokeWidth(12); //设置描边宽度 tp1.setStyle(Paint.Style.STROKE); //对文字只描边 //设置自定义字体 Typeface fromAsset = Typeface.createFromAsset(mContext.getAssets(), "fonts/Alibaba-PuHuiTi-Heavy.ttf"); borderText.setTypeface(fromAsset, Typeface.ITALIC); //自定义字体 ITALIC斜体 borderText.setTextColor(Color.parseColor("#F46059")); //设置描边颜色 borderText.setShadowLayer(3.0F, 2F, 2F, Color.parseColor("#ffd44042")); //设置阴影效果(投影) borderText.setGravity(getGravity()); } @Override public void setLayoutParams(ViewGroup.LayoutParams params) { super.setLayoutParams(params); borderText.setLayoutParams(params); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { CharSequence tt = borderText.getText(); //两个TextView上的文字必须一致 if (tt == null || !tt.equals(this.getText())) { borderText.setText(getText()); this.postInvalidate(); } super.onMeasure(widthMeasureSpec, heightMeasureSpec); borderText.measure(widthMeasureSpec, heightMeasureSpec); } protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, bottom); borderText.layout(left, top, right, bottom); } @Override protected void onDraw(Canvas canvas) { borderText.draw(canvas); super.onDraw(canvas); } }
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