Android 仿微信拍摄按钮

概述自己写了一个另外版本，感觉不是很好，借鉴了一下老哥的代码，优化了一下，感谢老哥，尾部附链接。 简单粗暴，没有太多扩展，如果需要可以写一些扩展，我只是实现出来懒得扩展了，因为就是自己写着玩的，没有什么需求。 话不多说，直接上代码：  publicclassVideoTakeButtonextendsView

自己写了一个另外版本，感觉不是很好，借鉴了一下老哥的代码，优化了一下，感谢老哥，尾部附链接。

 

简单粗暴，没有太多扩展，如果需要可以写一些扩展，我只是实现出来懒得扩展了，因为就是自己写着玩的，没有什么需求。

 

话不多说，直接上代码：

 

 

public class VIDeoTakebutton extends VIEw {    private static final String TAG = "VIDeoTakebutton";    /**     * 外边框半透明圆的画笔     */    private Paint mPaint0;    /**     * 内部圆的画笔     */    private Paint mPaint1;    /**     * 进度条的画笔     */    private Paint mPaint2;    /**     * 进度条动画     */    private ValueAnimator mProgressAni;    /**     * 最大拍摄时间，视频只能拍这么久     */    private int mMaxTime = 15;    /**     * 视频的最小拍摄时间，小于这个时间都按拍照处理     */    private float mMinTime = 0.6F;    /**     * 外边框的半透明圆的尺寸     */    private float bigCircleRadius = 0;    /**     * 外边框半透明圆的动画开始尺寸     */    private float bigCircleStarTradius = 0;    /**     * 外边框半透明圆的动画结束尺寸     */    private float bigCircleEndRadius = 0;    /**     * 内部圆的尺寸     */    private float smallCircleRadius = 0;    /**     * 内部圆的动画开始尺寸     */    private float smallCircleStarTradius = 0;    /**     * 内部圆的动画结束尺寸     */    private float smallCircleEndRadius = 40;    /**     * 拍摄视频的进度条     */    private float progress = 0;    /**     * 开始点击的消息码     */    private static final int START_CliCK = 0x001;    /**     * 长按事件的消息码     */    private static final int LONG_CliCK = 0x002;    /**     * 按钮按下时间     */    private long mStartTime = 0L;    /**     * 按钮抬起时间     */    private long mEndTime = 0L;    /**     * 长按最短时间  单位毫秒     */    public long LONG_CliCK_MIN_TIME = 800L;    public VIDeoTakebutton(Context context) {        super(context);        init(context);    }    public VIDeoTakebutton(Context context, @Nullable AttributeSet attrs) {        super(context, attrs);        init(context);    }    public VIDeoTakebutton(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        init(context);    }    private voID init(Context context) {        mPaint0 = new Paint();        mPaint0.setcolor(color.WHITE);        mPaint0.setAlpha(150);        mPaint1 = new Paint();        mPaint1.setcolor(color.WHITE);        mPaint1.setAlpha(255);        mPaint2 = new Paint();        mPaint2.setcolor(color.GREEN);        mPaint2.setAlpha(255);        //进度条的属性动画        mProgressAni = ValueAnimator.offloat(0, 360f);        mProgressAni.setDuration(mMaxTime * 1000);    }    private VIEwHandler vIEwHandler = new VIEwHandler(this);    static class VIEwHandler extends androID.os.Handler {        private WeakReference<VIDeoTakebutton> weakReference = null;        public VIEwHandler(VIDeoTakebutton vIDeoTakebutton) {            weakReference = new WeakReference<>(vIDeoTakebutton);        }        @OverrIDe        public voID handleMessage(@NonNull Message msg) {            super.handleMessage(msg);            if (weakReference == null || weakReference.get() == null) return;            final VIDeoTakebutton vIDeoTakebutton = weakReference.get();            switch (msg.what) {                case VIDeoTakebutton.START_CliCK:                    vIDeoTakebutton.startAnimationClick();                    break;                case VIDeoTakebutton.LONG_CliCK:                    if (vIDeoTakebutton.callBack != null) {                        vIDeoTakebutton.callBack.takeVIDeoStart();                    }                    break;            }        }    }    @OverrIDe    public voID draw(Canvas canvas) {        super.draw(canvas);        float x = getWIDth();        float y = getHeight();        float pointX = x / 2;        float pointY = y / 2;        bigCircleStarTradius = x / 2 - x / 15;        bigCircleEndRadius = x / 2;        smallCircleStarTradius = x * 2 / 5 - x / 15;        smallCircleEndRadius = (x * 2 / 5 - x / 15) / 2;        if (isRecording) {            canvas.drawCircle(pointX, pointY, bigCircleRadius, mPaint0);            canvas.drawCircle(pointX, pointY, smallCircleRadius, mPaint1);            //使用离屏绘制            int layerID = canvas.saveLayer(0, 0, getWIDth(), getHeight(), mPaint2, Canvas.ALL_SAVE_FLAG);            canvas.drawArc(x / 15, x / 15, x - x / 15, x - x / 15, 270, progress, true, mPaint2);            mPaint2.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OUT));            canvas.drawArc(0, 0, x, x, 270, progress, true, mPaint2);            mPaint2.setXfermode(null);            canvas.restoretoCount(layerID);        } else {            bigCircleRadius = bigCircleStarTradius;            canvas.drawCircle(pointX, pointY, bigCircleRadius, mPaint0);            smallCircleRadius = smallCircleStarTradius;            canvas.drawCircle(pointX, pointY, smallCircleRadius, mPaint1);        }    }    private voID startAnimationClick() {        ValueAnimator smallCircle = ValueAnimator.offloat(smallCircleStarTradius, smallCircleEndRadius);        smallCircle.setDuration(300);        smallCircle.addUpdateListener(animation -> {            smallCircleRadius = (float) animation.getAnimatedValue();            invalIDate();        });        ValueAnimator bigCircle = ValueAnimator.offloat(bigCircleStarTradius, bigCircleEndRadius);        bigCircle.setDuration(300);        bigCircle.addUpdateListener(animation -> {            if (isRecording) {                bigCircleRadius = (float) animation.getAnimatedValue();                invalIDate();            }        });        smallCircle.start();        bigCircle.start();        smallCircle.addListener(new Animator.AnimatorListener() {            @OverrIDe            public voID onAnimationStart(Animator animator) {            }            @OverrIDe            public voID onAnimationEnd(Animator animator) {                //开始绘制圆形进度条                if (isRecording) {                    startAniProgress();                }            }            @OverrIDe            public voID onAnimationCancel(Animator animator) {            }            @OverrIDe            public voID onAnimationRepeat(Animator animator) {            }        });    }    private voID startAniProgress() {        if (mProgressAni == null) return;        mProgressAni.start();        mProgressAni.addUpdateListener(valueAnimator -> {            progress = (float) valueAnimator.getAnimatedValue();            postInvalIDate();        });        mProgressAni.addListener(new AnimatorListenerAdapter() {            @OverrIDe            public voID onAnimationEnd(Animator animation) {                isRecording = false;                progress = 0;                postInvalIDate();            }        });    }    private boolean isRecording = false;    @Suppresslint("ClickableVIEwAccessibility")    @OverrIDe    public boolean ontouchEvent(MotionEvent event) {        super.ontouchEvent(event);        switch (event.getAction()) {            case MotionEvent.ACTION_DOWN:                isRecording = true;                mStartTime = System.currentTimeMillis();                vIEwHandler.sendEmptyMessage(START_CliCK);                vIEwHandler.sendEmptyMessageDelayed(LONG_CliCK, LONG_CliCK_MIN_TIME);                break;            case MotionEvent.ACTION_MOVE:                break;            case MotionEvent.ACTION_CANCEL:            case MotionEvent.ACTION_UP:                isRecording = false;                mEndTime = System.currentTimeMillis();                if (mEndTime - mStartTime < LONG_CliCK_MIN_TIME) {                    if (vIEwHandler.hasMessages(LONG_CliCK)) {                        vIEwHandler.removeMessages(LONG_CliCK);                    }                    if (callBack != null) {                        callBack.takePhoto();                    }                } else {                    if (mProgressAni != null && progress / 10 < mMinTime) {                        if (callBack != null) {                            callBack.takePhoto();                        }                    } else {                        if (callBack != null) {                            callBack.takeVIDeoEnd();                        }                    }                }                if (mProgressAni != null) {                    mProgressAni.cancel();                }                break;        }        return true;    }    interface CallBack {        voID takePhoto();        voID takeVIDeoStart();        voID takeVIDeoEnd();    }    private CallBack callBack;    public voID setCallBack(CallBack callBack) {        this.callBack = callBack;    }    @OverrIDe    protected voID onMeasure(int wIDthMeasureSpec, int heightmeasureSpec) {        super.onMeasure(wIDthMeasureSpec, heightmeasureSpec);        int screenWIDth = getScreenWIDth();        int wIDth = screenWIDth * 23 / 100;        setMeasuredDimension(wIDth, wIDth);    }    /**     * 获取屏幕宽度     *     * @return     */    private int getScreenWIDth() {        WindowManager windowManager = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);        displayMetrics displayMetrics = new displayMetrics();        windowManager.getDefaultdisplay().getMetrics(displayMetrics);        return displayMetrics.wIDthPixels;    }}

 

 

感谢老哥： 总结

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