写动画的同事离职了，没办法，我只能接手他的部分工作 : ( 。 最近写了不少自定义view。
这个的效果是
1，没按下时是两个同心圆的按钮 2，按下时，同心圆白色背景放大 3，按下后开始根据时间做进度动画 4，进度动画是一个随着时间增加而增加扇角的圆环
代码足够短，就不补描述（图）了
core code
class ProgressRecordView : View {
private var diameter = 0F
private var barPressWidth = 0F
private var barPressColor = 0xFFFFFFFF.toInt()
private var bgPressColor = 0xFFFFFFFF.toInt()
private var bgWidth = diameter
private var bgInnerWidth = 0F
private var bgInnerColor = 0xFFFFFFFF.toInt()
private var bgColor = 0xFFFFFFFF.toInt()
private val pressPaint = Paint()
private val pressBgPaint = Paint()
private val pressBarBounds = RectF()
private val bgPaint = Paint()
private val bgInnerPaint = Paint()
val minProgress = 0
val maxProgress = 360
var pressing = false
var progress = 0
set(value) {
field = value
postInvalidate()
}
constructor(context: Context) : this(context, null)
constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)
constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) :
super(context, attrs, defStyleAttr) {
val array = context.obtainStyledAttributes(attrs, R.styleable.ProgressRecordView)
//宽度都是指直径
barPressWidth = array.getDimension(R.styleable.ProgressRecordView_barPressWidth, barPressWidth)
bgInnerWidth = array.getDimension(R.styleable.ProgressRecordView_bgInnerWidth, bgInnerWidth)
bgWidth = array.getDimension(R.styleable.ProgressRecordView_bgWidth, bgWidth)
barPressColor = array.getColor(R.styleable.ProgressRecordView_barPressColor, barPressColor)
bgPressColor = array.getColor(R.styleable.ProgressRecordView_bgPressColor, bgPressColor)
bgInnerColor = array.getColor(R.styleable.ProgressRecordView_bgInnerColor, bgInnerColor)
bgColor = array.getColor(R.styleable.ProgressRecordView_bgColor, bgColor)
array.recycle()
}
override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
super.onMeasure(widthMeasureSpec, widthMeasureSpec)
//以宽度为准的正方形
}
override fun onSizeChanged(w: Int, h: Int, oldWidth: Int, oldHeight: Int) {
super.onSizeChanged(w, h, oldWidth, oldHeight)
diameter = w.toFloat()
//set-up bounds
pressBarBounds.set(barPressWidth / 2,
barPressWidth / 2,
width - barPressWidth / 2,
height - barPressWidth / 2)
//set-up paint
pressPaint.color = barPressColor
pressPaint.isAntiAlias = true
pressPaint.style = Paint.Style.STROKE
pressPaint.strokeWidth = barPressWidth
pressBgPaint.color = bgPressColor
pressBgPaint.isAntiAlias = true
pressBgPaint.style = Paint.Style.FILL
bgPaint.color = bgColor
bgPaint.isAntiAlias = true
bgPaint.style = Paint.Style.FILL
bgInnerPaint.color = bgInnerColor
bgInnerPaint.isAntiAlias = true
bgInnerPaint.style = Paint.Style.FILL
}
override fun onDraw(canvas: Canvas?) {
super.onDraw(canvas)
if (pressing) {
canvas?.drawCircle(diameter / 2, diameter / 2, diameter / 2 - 1, pressBgPaint)
canvas?.drawArc(pressBarBounds, -90F, progress.toFloat(), false, pressPaint)
} else {
canvas?.drawCircle(diameter / 2, diameter / 2, bgWidth / 2, bgPaint)
canvas?.drawCircle(diameter / 2, diameter / 2, bgInnerWidth / 2, bgInnerPaint)
}
}
}
res value attrs.xml
<resources>
<declare-styleable name="ProgressRecordView">
<attr name="barPressWidth" format="dimension" />
<attr name="bgInnerWidth" format="dimension" />
<attr name="bgWidth" format="dimension"/>
<attr name="barPressColor" format="color" />
<attr name="bgPressColor" format="color" />
<attr name="bgInnerColor" format="color" />
<attr name="bgColor" format="color" />
</declare-styleable>
</resources>
调用
<org
.yeshen.demo.ProgressRecordView
android:id=
"@+id/edit_video_record_btn"
android:layout_width=
"70dp"
android:layout_height=
"70dp"
android:layout_gravity=
"center_horizontal"
android:layout_marginTop=
"80dp"
app:barPressColor=
"@color/yellow.light"
app:barPressWidth=
"5dp"
app:bgColor=
"@color/white"
app:bgInnerColor=
"@color/yellow.light"
app:bgInnerWidth=
"50dp"
app:bgPressColor=
"@color/white"
app:bgWidth=
"60dp" />
mRecordBtn
.setOnClickListener {}
mRecordBtn
.setOnTouchListener { _, event ->
when (event
.action) {
MotionEvent
.ACTION_DOWN -> {
//TODO do something
(mRecordBtn
.tag as? ValueAnimator)?
.cancel()
mRecordBtn
.tag = ObjectAnimator
.ofInt(mRecordBtn
.minProgress, mRecordBtn
.maxProgress)
.apply {
duration = VideoControlView
.SHORT_VIDEO_LENGTH//VideoControlView
.SHORT_VIDEO_LENGTH =
10000L
addUpdateListener { animation ->
mRecordBtn
.pressing = true
mRecordBtn
.progress = animation
.animatedValue as Int
}
addListener(object : AnimatorListenerAdapter() {
override fun onAnimationEnd(animation: Animator) {
mRecordBtn
.tag = null
//TODO do something
Lg
.e(
"onAnimationEnd stopRecord")
}
})
start()
}
}
MotionEvent
.ACTION_UP -> {
(mRecordBtn
.tag as? ValueAnimator)?
.cancel()
}
}
return@setOnTouchListener false
}
