自定义时钟

还比较像样的东西吧，暂且先绘到这里了，以后想到了再改进

就如上图所示，显示的时间是14:13:40

用到的方法是之前使用的，见http://blog.csdn.net/molu_chase/article/details/52582751

同样的显示资源文件，这个有直接用变量定义也是一样的效果

<resources>    <attr name="HourColor" format="color"/>    <attr name="MinColor" format="color"/>    <attr name="SecondColor" format="color"/>    <declare-styleable name="ClockView">        <attr name="HourColor"/>        <attr name="MinColor"/>        <attr name="SecondColor"/>    </declare-styleable></resources>

在布局文件中使用

<com.example.administrator.clock.ClockView        android:layout_width="match_parent"        android:layout_height="match_parent"        clock:HourColor="#aaff22"        clock:MinColor="#ffee22"        clock:SecondColor="#2233ff"/>

自定义类如下

    private int mHeight, mWidth;//屏幕的高度和宽度    private int mHourColor,mMinColor,mSecondColor;//每个转盘的颜色    private int mHour,mMin,mSecond;//进度值    private int mHourWidth,mMinWidth,mSecondWidth;//进度条的宽度    public ClockView(Context context) {        this(context, null);    }    public ClockView(Context context, AttributeSet attrs) {        this(context, attrs, 0);    }    public ClockView(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        //获取attrs中的属性        TypedArray a=context.getTheme().obtainStyledAttributes(attrs,R.styleable.ClockView,defStyleAttr,0);        int n=a.getIndexCount();        for(int i=0;i<n;i++){            int attr=a.getIndex(i);            switch(attr){                case R.styleable.ClockView_HourColor:                    mHourColor=a.getColor(attr, Color.BLACK);                    break;                case R.styleable.ClockView_MinColor:                    mMinColor=a.getColor(attr,Color.BLACK);                    break;                case R.styleable.ClockView_SecondColor:                    mSecondColor=a.getColor(attr,Color.BLACK);                    break;            }        }        a.recycle();        //开启线程，来获取时间，并进行重绘        new Thread(){            @Override            public void run() {                //获取系统的时间             //   Time t=new Time();//报错，不知道为什么                while (true) {                    Long time = System.currentTimeMillis();                    final Calendar mCalendar = Calendar.getInstance();                    mCalendar.setTimeInMillis(time);                    mHour = mCalendar.get(Calendar.HOUR_OF_DAY);//获取的是24小时制               //     Log.i("info",mHour+"");                    mHour=(int)((mHour*1.0)/(24*1.0)*360);                    mMin = mCalendar.get(Calendar.MINUTE);                    mMin=mMin*6;                    mSecond = mCalendar.get(Calendar.SECOND);                    mSecond=mSecond*6;                    postInvalidate();//重绘                }            }        }.start();    }    @Override    protected void onDraw(Canvas canvas) {        mHourWidth=50;        mMinWidth=40;        mSecondWidth=30;        // 获取宽高参数        mWidth = getMeasuredWidth();        mHeight = getMeasuredHeight();        Paint paintCircle = new Paint();        paintCircle.setStyle(Paint.Style.STROKE);//画空圆        paintCircle.setAntiAlias(true);//抗锯齿        paintCircle.setStrokeWidth(5);//线宽        //最外圈1        int rad1=mWidth/2-5;        canvas.drawCircle(mWidth / 2,                mHeight / 2, rad1, paintCircle);        // 画刻度        Paint painDegree = new Paint();        paintCircle.setStrokeWidth(3);//线宽        //秒        for (int i = 0; i < 60; i++) {            // 区分整点与非整点            if (i%5==0) {                painDegree.setStrokeWidth(5);                canvas.drawLine(mWidth / 2, mHeight / 2 - rad1,                        mWidth / 2, mHeight / 2 - rad1 + 60,                        painDegree);            } else {                painDegree.setStrokeWidth(3);                painDegree.setTextSize(15);                canvas.drawLine(mWidth / 2, mHeight / 2 - rad1,                        mWidth / 2, mHeight / 2 - rad1 + 30,                        painDegree);                String degree = String.valueOf(i);                painDegree.setColor(Color.RED);                canvas.drawText(degree,                        mWidth / 2 - painDegree.measureText(degree) / 2,                        mHeight / 2 - rad1 + 50,                        painDegree);                painDegree.setColor(Color.BLACK);            }            // 旋转画布画线，免得繁琐计算            canvas.rotate(6, mWidth / 2, mHeight / 2);        }        //第二圈,60为之前画表盘消耗的        canvas.drawCircle(mWidth/2,mHeight/2,rad1-60,paintCircle);        //第三圈,在二三之间为秒表,其中宽度为mSecondWidth        canvas.drawCircle(mWidth / 2,                mHeight / 2, rad1 - mSecondWidth - 60, paintCircle);        //分        //第4圈，在三四之间为分表,其中mMinWidth为宽度        canvas.drawCircle(mWidth / 2,                mHeight / 2, rad1-mSecondWidth-60-mMinWidth, paintCircle);        //第5圈,在四五之间为时表，其中mHourWidth为宽度        canvas.drawCircle(mWidth / 2,                mHeight / 2, rad1-mSecondWidth-60-mMinWidth-mHourWidth, paintCircle);        //时盘的半径        int rad2=rad1-mSecondWidth-60-mMinWidth-mHourWidth;        //时        for (int i = 0; i < 24; i++) {            // 区分整点与非整点            if ((i)%6==0) {                painDegree.setStrokeWidth(5);                painDegree.setTextSize(30);                canvas.drawLine(mWidth / 2, mHeight / 2 - rad2,                        mWidth / 2, mHeight / 2 -rad2+60,                        painDegree);            } else {                painDegree.setStrokeWidth(3);                painDegree.setTextSize(15);                canvas.drawLine(mWidth / 2, mHeight / 2 - rad2,                        mWidth / 2, mHeight / 2 - rad2+30,                        painDegree);                String degree = String.valueOf(i);                painDegree.setColor(Color.RED);                canvas.drawText(degree,                        mWidth / 2 - painDegree.measureText(degree) / 2,                        mHeight / 2 - rad2 + 50,                        painDegree);                painDegree.setColor(Color.BLACK);            }            // 通过旋转画布简化坐标运算            canvas.rotate(15, mWidth / 2, mHeight / 2);        }        //第6圈，五六之间为时表        canvas.drawCircle(mWidth/2,mHeight/2,rad2-60,paintCircle);        //画时间转动表        Paint paint=new Paint();        //秒        paint.setStrokeWidth(mSecondWidth-5);        int radius=rad1-mSecondWidth/2-60;        paint.setStyle(Paint.Style.STROKE);        RectF rectF=new RectF(mWidth/2-radius,mHeight/2-radius,mWidth/2+radius,mHeight/2+radius);        paint.setColor(mSecondColor);        canvas.drawArc(rectF,270,mSecond,false,paint);        //分        paint.setStrokeWidth(mMinWidth-5);        int radius2=rad1-mSecondWidth-60-mMinWidth/2;        paint.setStyle(Paint.Style.STROKE);        RectF rectF2=new RectF(mWidth/2-radius2,mHeight/2-radius2,mWidth/2+radius2,mHeight/2+radius2);        paint.setColor(mMinColor);        canvas.drawArc(rectF2,270,mMin,false,paint);        //时        paint.setStrokeWidth(mHourWidth-5);        int radius3=rad1-mSecondWidth-60-mMinWidth-mHourWidth/2;        paint.setStyle(Paint.Style.STROKE);        RectF rectF3=new RectF(mWidth/2-radius3,mHeight/2-radius3,mWidth/2+radius3,mHeight/2+radius3);        paint.setColor(mHourColor);        canvas.drawArc(rectF3,270,mHour,false,paint);    }}

源码见https://github.com/moluchase/Clock

暂且如上