高仿支付宝蚂蚁森林气泡DEMO版本
public class BubbleView extends View {
private Paint textPaint;
private Paint bgPaint;
private Paint whitePaint;
private float offset;
private RectF rectF;
private RectF innerRectF;
private int padding = 20;
private int innerPadding = 35;
private int BUBBLEOFFSET=35;
private ValueAnimator valueAnimator;
private String text="5g";
public BubbleView(Context context) {
super(context);
init();
}
public BubbleView(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
init();
}
public BubbleView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
int[] colors = {0xFFCCFE5F,0xffBDF041};
private void init() {
bgPaint=new Paint();
bgPaint.setColor(Color.GREEN);
bgPaint.setAntiAlias(true);
bgPaint.setStrokeWidth(10);
bgPaint.setStyle(Paint.Style.FILL);
whitePaint=new Paint();
whitePaint.setColor(Color.WHITE);
whitePaint.setAntiAlias(true);
whitePaint.setStrokeWidth(10);
whitePaint.setStyle(Paint.Style.STROKE);
whitePaint.setStrokeCap( Paint.Cap.ROUND );
textPaint = new Paint();
textPaint.setColor(0xff339855);
textPaint.setAntiAlias(true);
textPaint.setStrokeWidth(35);
textPaint.setStyle(Paint.Style.FILL);
textPaint.setTextAlign(Paint.Align.CENTER);
textPaint.setTextSize(75);
textPaint.setTypeface(Typeface.DEFAULT_BOLD);
//文字居中
Paint.FontMetrics fontMetrics = new Paint.FontMetrics();
textPaint.getFontMetrics(fontMetrics);
offset = (fontMetrics.descent + fontMetrics.ascent) / 2;
//动画
valueAnimator = ObjectAnimator.ofFloat(this, "translationY", BUBBLEOFFSET,-BUBBLEOFFSET);
valueAnimator.setDuration(1500);
valueAnimator.setRepeatMode(ObjectAnimator.REVERSE);
valueAnimator.setRepeatCount(INFINITE);
valueAnimator.start();
}
//处理warp_content,实际项目需要更多的处理
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int mode= MeasureSpec.getMode(widthMeasureSpec);
if(mode==MeasureSpec.AT_MOST||mode==MeasureSpec.UNSPECIFIED){
setMeasuredDimension(240,240);
}else{
super.onMeasure(widthMeasureSpec, widthMeasureSpec);
}
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
rectF = new RectF(padding, padding, w - padding, h - padding);
innerRectF = new RectF(innerPadding, innerPadding, w - innerPadding, h - innerPadding);
//渐变色
Shader shader1 = new RadialGradient(rectF.centerX(), rectF.centerY(),rectF.centerX()-rectF.left,colors,new float[]{0.8f,02f},Shader.TileMode.CLAMP);
bgPaint.setShader(shader1);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (rectF == null) return;
//背景
canvas.drawCircle(rectF.centerX(), rectF.centerY(), rectF.centerX()-rectF.left, bgPaint);
//高亮部分
whitePaint.setColor(0xefffffff);
canvas.drawArc(innerRectF,180,60,false,whitePaint);
canvas.drawArc(innerRectF,250,2,false,whitePaint);
whitePaint.setColor(0xaaffffff);
canvas.drawArc(innerRectF,15,60,false,whitePaint);
//文字
canvas.drawText(text, rectF.centerX(), rectF.centerY() - offset, textPaint);
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
if(valueAnimator!=null)valueAnimator.cancel();
valueAnimator=null;
}
}
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