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package com.DeviceTest.view;
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import java.util.Calendar;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.Path;
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import android.view.View;
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public class DrawClock extends View {
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public DrawClock(Context context) {
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super(context);
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}
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public void onDraw(Canvas canvas) {
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canvas.drawColor(Color.BLACK);
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Paint paint = new Paint();
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paint.setAntiAlias(true);
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paint.setColor(Color.RED);
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paint.setStyle(Paint.Style.STROKE);
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paint.setStrokeWidth(2);
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paint.setTextSize(16);
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drawClockPandle(canvas, paint); // 画制时钟的底盘
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drawClockPointer(canvas, paint); // 画制时钟的指针
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}
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// ------时钟底盘画制函数--------------
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void drawClockPandle(Canvas canvas, Paint paint)
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{
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int px = getMeasuredWidth();
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int py = getMeasuredWidth();
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canvas.drawCircle(px / 2, py / 2, py / 2 - 1, paint);
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canvas.drawCircle(px / 2, py / 2, py / 40, paint);
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Path path = new Path();
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path.moveTo(1, py / 2);
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path.lineTo(py / 16, py / 2);
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canvas.drawPath(path, paint);
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canvas.drawText("11", py / 16, py / 2, paint);
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path.moveTo(px / 2, 1);
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path.lineTo(px / 2, py / 16);
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canvas.drawPath(path, paint);
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canvas.drawText("12", px / 2,py / 16, paint);
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path.moveTo(px - 1, py / 2);
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path.lineTo(px - px / 16, py / 2);
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canvas.drawPath(path, paint);
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canvas.drawText("3",px - px / 16, py / 2, paint);
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path.moveTo(px / 2, py - 1);
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path.lineTo(px / 2, py - py / 16);
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canvas.drawPath(path, paint);
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canvas.drawText("6", px / 2, py - py / 16, paint);
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canvas.save();
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canvas.rotate(30, px / 2, py / 2);
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Path path8 = new Path();
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path8.moveTo(1, py / 2);
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path8.lineTo(px / 30, py / 2);
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canvas.drawPath(path8, paint);
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canvas.drawText("10",px / 30, py / 2, paint);
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path8.moveTo(px / 2, 1);
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path8.lineTo(px / 2, py / 30);
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canvas.drawPath(path8, paint);
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canvas.drawText("1",px / 2, py / 30, paint);
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path8.moveTo(px - 1, py / 2);
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path8.lineTo(px - px / 30, py / 2);
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canvas.drawPath(path8, paint);
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canvas.drawText("4", px - px / 30, py / 2, paint);
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path8.moveTo(px / 2, py - 1);
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path8.lineTo(px / 2, py - py / 30);
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canvas.drawPath(path8, paint);
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canvas.drawText("7", px / 2, py - py / 30, paint);
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canvas.restore();
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canvas.save();
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canvas.rotate(60, px / 2, py / 2);
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Path path9 = new Path();
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path9.moveTo(1, py / 2);
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path9.lineTo(px / 30, py / 2);
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canvas.drawPath(path9, paint);
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canvas.drawText("11", px / 30, py / 2, paint);
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path9.moveTo(px / 2, 1);
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path9.lineTo(px / 2, py / 30);
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canvas.drawPath(path9, paint);
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canvas.drawText("2",px / 2, py / 30, paint);
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path9.moveTo(px - 1, py / 2);
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path9.lineTo(px - px / 30, py / 2);
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canvas.drawPath(path9, paint);
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canvas.drawText("5", px - px / 30, py / 2, paint);
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path9.moveTo(px / 2, py - 1);
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path9.lineTo(px / 2, py - py / 30);
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canvas.drawPath(path9, paint);
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canvas.drawText("8",px / 2,py - py / 30, paint);
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canvas.restore();
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}
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// ---------时钟指针画制函数---------------------
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void drawClockPointer(Canvas canvas, Paint paint)
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{
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int px = getMeasuredWidth();
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int py = getMeasuredWidth();
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/*-------------------------获得当前时间小时和分钟数---------------------*/
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int mHour;
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int mMinutes;
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int mSeconds;
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long time = System.currentTimeMillis();
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final Calendar mCalendar = Calendar.getInstance();
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mCalendar.setTimeInMillis(time);
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mHour = mCalendar.get(Calendar.HOUR);
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mMinutes = mCalendar.get(Calendar.MINUTE);
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mSeconds = mCalendar.get(Calendar.SECOND);
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/*-------------------------获得当前时间---------------------*/
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float hDegree = ((mHour + (float) mMinutes / 60) / 12) * 360;
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float mDegree = ((mMinutes + (float) mSeconds / 60) / 60) * 360;
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float sDegree = ((float) mSeconds / 60) * 360;
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// 分针－－－－－－－－－－－
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paint.setColor(Color.GREEN);
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canvas.save();
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canvas.rotate(mDegree, px / 2, py / 2);
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Path path1 = new Path();
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path1.moveTo(px / 2, py / 2);
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path1.lineTo(px / 2, py / 4);
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canvas.drawPath(path1, paint);
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canvas.restore();
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// 时针－－－－－－－－－－－－－－－－－－
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paint.setColor(Color.WHITE);
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canvas.save();
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canvas.rotate(hDegree, px / 2, py / 2);
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Path path2 = new Path();
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path2.moveTo(px / 2, py / 2);
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path2.lineTo(px / 2, py / 3);
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canvas.drawPath(path2, paint);
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canvas.restore();
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// 秒针－－－－－－－－－－－－－－－－－－－－－
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paint.setColor(Color.YELLOW);
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canvas.save();
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canvas.rotate(sDegree, px / 2, py / 2);
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Path path3 = new Path();
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path3.moveTo(px / 2, py / 2);
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path3.lineTo(px / 2, py / 8);
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canvas.drawPath(path3, paint);
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canvas.restore();
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}
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}
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