【移动应用开发技术】Android怎么使用自定义view在指定时间内匀速画一条直线

【移动应用开发技术】Android怎么使用自定义view在指定时间内匀速画一条直线

这篇文章给大家分享的是有关Android怎么使用自定义view在指定时间内匀速画一条直线的内容。在下觉得挺实用的，因此分享给大家做个参考，一起跟随在下过来看看吧。具体如下：1.效果图：2.自定义view实现public

class

UniformLine

extends

View

{

private

int

x,

y,

nextX,

nextY,

incrementY,

incrementX;

public

UniformLine(Context

context)

{

super(context);

}

public

UniformLine(Context

context,

int

x,

int

y,

int

nextX,

int

nextY)

{

super(context);

this.x

=

x;

this.y

=

y;

this.nextX

=

nextX;

this.nextY

=

nextY;

init();

}

private

void

init()

{

p

=

new

Paint();

p.setColor(Color.WHITE);

p.setAntiAlias(true);

p.setStrokeWidth(4.0f);

ValueAnimator

valueAnimatorX

=

ValueAnimator.ofFloat(x,

nextX);

valueAnimatorX.addUpdateListener(new

ValueAnimator.AnimatorUpdateListener()

{

@Override

public

void

onAnimationUpdate(ValueAnimator

animation)

{

incrementX

=

Math.round((Float)

animation.getAnimatedValue());

invalidate();

}

});

ValueAnimator

valueAnimatorY

=

ValueAnimator.ofInt(y,

nextY);

valueAnimatorY.addUpdateListener(new

ValueAnimator.AnimatorUpdateListener()

{

@Override

public

void

onAnimationUpdate(ValueAnimator

animation)

{

incrementY

=

(int)

animation.getAnimatedValue();

invalidate();

}

});

AnimatorSet

animatorSet

=

new

AnimatorSet();

LinearInterpolator

ll

=

new

LinearInterpolator();

animatorSet.setInterpolator(ll);//匀速

animatorSet.setDuration(2000);

animatorSet.playTogether(valueAnimatorX,

valueAnimatorY);

animatorSet.start();

}

Paint

p;

@Override

protected

void

onDraw(Canvas

canvas)

{

super.onDraw(canvas);

canvas.drawLine(Util.Div(Math.round(x)),

Util.Div(Math.round(y)),

Util.Div(Math.round(incrementX)),

Util.Div(Math.round(incrementY)),

p);//

斜线

}

}3.调用uniformLine

=

new

UniformLine(mContext,

300,

500,

600,

200);

addView(uniformLine);感谢各位的阅读！关于“Andro