Android自定义模拟时钟

package com.duke.myclockview; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Rect; import android.os.Handler; import android.os.Message; import android.text.TextUtils; import android.util.AttributeSet; import android.util.TypedValue; import android.view.View; import java.util.Calendar; /** * Author: duke * Date: 2016-04-28 19:07 * Description: 模拟时钟 */ public class MyClock extends View { //画圆画线的画笔 private Paint mPaint; //画文本的画笔 private Paint mTextPaint; private Rect textBound; private int bgResId = -1;//背景图片资源ref private int bgColor = Color.WHITE;//背景颜色color，ref private int outCircleColor = Color.RED;//外圆的颜色color，ref private int smallDegreeColor = Color.GRAY;//小刻度的颜色color，ref private int bigDegreeColor = Color.BLUE;//大刻度的颜色color，ref private int textColor = Color.RED;//字体颜色color，ref private int hourPointerColor = Color.parseColor("#ff6100");//时针颜色color，ref private int minutePointerColor = Color.MAGENTA;//分针颜色color，ref private int secondPointerColor = Color.BLACK;//秒针颜色color，ref private int centerCircleColor = Color.GREEN;//中心点颜色color，ref //外圆宽度 private int outCircleWidth = getContext().getResources().getDimensionPixelSize(R.dimen.dp_6); //小刻度宽度 private int smallDegreeWidth = getContext().getResources().getDimensionPixelSize(R.dimen.dp_4); //小刻度长度 private int smallDegreeLength = getContext().getResources().getDimensionPixelSize(R.dimen.dp_15); //大刻度宽度 private int bigDegreeWidth = getContext().getResources().getDimensionPixelSize(R.dimen.dp_6); //大刻度长度 private int bigDegreeLength = getContext().getResources().getDimensionPixelSize(R.dimen.dp_25); //时针宽度 private int hourPointerWidth = getContext().getResources().getDimensionPixelSize(R.dimen.dp_10); //时针长度 private int hourPointerLength = getContext().getResources().getDimensionPixelSize(R.dimen.dp_75); //分针宽度 private int minutePointerWidth = getContext().getResources().getDimensionPixelSize(R.dimen.dp_6); //分针长度 private int minutePointerLength = getContext().getResources().getDimensionPixelSize(R.dimen.dp_105); //秒针宽度 private int secondPointerWidth = getContext().getResources().getDimensionPixelSize(R.dimen.dp_3); //秒针长度 private int secondPointerLength = getContext().getResources().getDimensionPixelSize(R.dimen.dp_140); //中心圆大小 private int centerCircleRadius = getContext().getResources().getDimensionPixelSize(R.dimen.dp_8); private int textSize = 16;//字体大小 //获取当前的时分秒 private int hour; private int minute; private int second; private StringBuilder timeString;//HH:mm:ss public MyClock(Context context) { this(context, null, 0); } public MyClock(Context context, AttributeSet attrs) { this(context, attrs, 0); } public MyClock(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); //获取属性值 TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.MyClock, defStyleAttr, 0); int count = array.getIndexCount(); for (int i = 0; i < count; i++) { int attr = array.getIndex(i); switch (attr) { case R.styleable.MyClock_bgResId: bgResId = array.getResourceId(attr, -1); break; case R.styleable.MyClock_bgColor: bgColor = array.getColor(attr, Color.WHITE); break; case R.styleable.MyClock_outCircleColor: outCircleColor = array.getColor(attr, Color.RED); break; case R.styleable.MyClock_smallDegreeColor: smallDegreeColor = array.getColor(attr, Color.GRAY); break; case R.styleable.MyClock_bigDegreeColor: bigDegreeColor = array.getColor(attr, Color.BLUE); break; case R.styleable.MyClock_textColor: textColor = array.getColor(attr, Color.RED); break; case R.styleable.MyClock_hourPointerColor: hourPointerColor = array.getColor(attr, Color.DKGRAY); break; case R.styleable.MyClock_minutePointerColor: minutePointerColor = array.getColor(attr, Color.MAGENTA); break; case R.styleable.MyClock_secondPointerColor: secondPointerColor = array.getColor(attr, Color.BLACK); break; case R.styleable.MyClock_centerCircleColor: centerCircleColor = array.getColor(attr, Color.YELLOW); break; } } array.recycle(); //获取默认字体大小 textSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, textSize, getResources().getDisplayMetrics()); mPaint = new Paint(); mTextPaint = new Paint(); mTextPaint.setColor(textColor); mTextPaint.setTextSize(textSize); textBound = new Rect(); } //计算时分秒 private void computTime() { Calendar calendar = Calendar.getInstance(); hour = calendar.get(Calendar.HOUR_OF_DAY); minute = calendar.get(Calendar.MINUTE); second = calendar.get(Calendar.SECOND); //拼接 HH:mm:ss时间串 timeString = new StringBuilder(); if (hour < 10) { timeString.append("0"); } timeString.append(hour); timeString.append(":"); if (minute < 10) { timeString.append("0"); } timeString.append(minute); timeString.append(":"); if (second < 10) { timeString.append("0"); } timeString.append(second); } /** * 测量，确定view最终的宽高 * * @param widthMeasureSpec * @param heightMeasureSpec */ @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int widthSize = MeasureSpec.getSize(widthMeasureSpec); int heightSize = MeasureSpec.getSize(heightMeasureSpec); int targetWidthHeight = Math.min(widthSize, heightSize); //取正方形 setMeasuredDimension(targetWidthHeight, targetWidthHeight); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); //获取时间 computTime(); //绘制背景 if (bgResId > 0) { setBackgroundResource(bgResId); } else { //颜色值可以是负数，故不用判断颜色值是否大于0 setBackgroundColor(bgColor); } //画大圆 mPaint.reset(); mPaint.setAntiAlias(true); mPaint.setDither(true); mPaint.setColor(outCircleColor); mPaint.setStrokeWidth(outCircleWidth); //设置画笔空心 mPaint.setStyle(Paint.Style.STROKE); canvas.drawCircle(getMeasuredWidth() >> 1, getMeasuredHeight() >> 1, (getMeasuredWidth() >> 1) - (outCircleWidth >> 1), mPaint); //画小刻度(总共60个) mPaint.setColor(smallDegreeColor); mPaint.setStrokeWidth(smallDegreeWidth); //刻度半径 float degreeRadius = (getMeasuredWidth() >>