Custom components-draw a clock

Custom components-draw a clock

1,

Vc/y0sa2r3ijrM/yyc/Pwre9z/LSxraveS5jYW52YXO1xMSsyM/release + release/ytcS3xbTzsbbK/aOsec6qyvrWsbe9z/release + release/ Release/release/deqoaM8YnI + release/nOvcfQseSjrMbkyrW + zcrHsNHNvM/xtcS2pbK/u/K117K/zca1vdK7sd + release/release + LXEu + release MVzdG9yZdKqxeS21Mq508OjqHJlc3RvcmW/drawing + HS/drawing/ghost "brush: java;"> package com. example. canvastest. view; import java. util. calendar; import android. content. context; import android. graphics. canvas; import android. graphics. color; import androi D. graphics. paint; import android. graphics. paint. align; import android. graphics. paint. style; import android. graphics. path; import android. graphics. rectF; import android. OS. handler; import android. util. attributeSet; import android. util. log; import android. view. view; import com. example. canvastest. densityUtil; import com. example. canvastest. r;/*** draw the clock ** @ author libin **/public class ClockView extends View {// Radius private float radius = 200; private Paint mDownPaint; // width private float mCirclePaintWidth = 10; // Paint brush private Paint mOutSidePaint in the circle above; // draw the text private Paint mTextPaint; // text size: private int textFontSize = 16; private int longLine; private int outer line; private int widthLine; // the radius of the small center of the private int circle; private int hourDegrees; private int minDegrees; private int secDegrees; public ClockView (Context cont Ext) {super (context); init ();} public ClockView (Context context, AttributeSet attrs) {super (context, attrs); init ();} public ClockView (Context context, AttributeSet attrs, int defStyleAttr) {super (context, attrs, defStyleAttr); init ();} private void init () {mDownPaint = new (); mDownPaint. setColor (Color. BLACK); mDownPaint. setAntiAlias (true); mDownPaint. setStrokeWidth (mCirclePaintWidth); textFontSize = (Int) getResources (). getDimension (R. dimen. textSize); vertex line = (int) getResources (). getDimension (R. dimen. required line); longLine = (int) getResources (). getDimension (R. dimen. longLine); widthLine = (int) getResources (). getDimension (R. dimen. widthLine); radius = (int) getResources (). getDimension (R. dimen. circleRadius); circle = (int) getResources (). getDimension (R. dimen. circle); // the paint brush above mOutSidePaint = new Pai Nt (); mOutSidePaint. setAntiAlias (true); mOutSidePaint. setStrokeWidth (mCirclePaintWidth); mOutSidePaint. setStyle (Style. STROKE); mOutSidePaint. setColor (Color. BLACK); // the Paint brush above mTextPaint = new Paint (); mTextPaint. setAntiAlias (true); mTextPaint. setColor (Color. BLACK); mTextPaint. setStrokeWidth (widthLine); mTextPaint. setTextAlign (Align. CENTER); mTextPaint. setTextSize (textFontSize); mDownPaint. setTextSize (textFontSi Ze); mHandler. sendEmptyMessage (10) ;}@ Overrideprotected void onDraw (Canvas canvas) {// pan, move the coordinate origin of the Canvas to the left and right Directions x, and move y up and down. the default position of the canvas is (0, 0 ). // example: if the origin of the canvas falls on (), then the translate () is to move 10 on the X axis and Y axis respectively on the Origin, the origin is changed ). Canvas. translate (canvas. getWidth ()/2, canvas. getHeight ()/2); // move the position to the coordinate point of the painted paper: 150,150 // draw a circle canvas. drawCircle (0, 0, radius, mOutSidePaint); canvas. save (); // draw Path path Path = new path (); Path. addArc (new RectF (-radius,-radius, radius, radius),-180,180); mDownPaint. setTextAlign (Align. CENTER); int pathy = DensityUtil. dip2px (getContext (),-5); // display the text in the middle canvas. drawTextOnPath ("canvas Clock", path, 0, pathy, mDownPaint); canvas. restore (); // draw the scale canvas. save (); canvas. rotate (210); float y = radius; int count = 60; // The total number of scales for (int I = 0; I <count; I ++) {if (I % 5 = 0) {canvas. drawLine (0f, y-longLine + 2, 0, y + mCirclePaintWidth/2, mTextPaint); canvas. drawText (String. valueOf (I/5 + 1), 0, y-mCirclePaintWidth/2-longLine, mTextPaint);} else {canvas. drawLine (0f, y-plain line, 0f, y-mCirclePaintWidth/2, mTextPaint);} canvas. rotate (360/count, 0f, 0f); // rotating paper} canvas. restore (); // draw a canvas with seconds. save (); canvas. rotate (secDegrees); Paint hourPaint = new Paint (mDownPaint); hourPaint. setColor (Color. BLACK); hourPaint. setStrokeWidth (circle); canvas. drawLine (0,-longLine, 0, radius * 2/3, hourPaint); canvas. restore (); // draw the canvas of the sub-needle. save (); canvas. rotate (minDegrees); canvas. drawLine (0,-longLine, 0, radius * 1/2, hourPaint); canvas. restore (); // draw the canvas for the hour. save (); canvas. rotate (hourDegrees); canvas. drawLine (0,-longLine, 0, radius * 1/3, hourPaint); canvas. restore (); // Paint center black spot Paint tmpPaint = new Paint (mDownPaint); tmpPaint. setColor (Color. BLACK); canvas. drawCircle (0, 0, circle * 2, tmpPaint); // draw center reddot tmpPaint. setColor (Color. RED); canvas. drawCircle (0, 0, circle * 4/3, tmpPaint); super. onDraw (canvas);}/*** obtain angle */private void calculate () {Calendar ar calendar AR = Calendar ar. getInstance (); int hour = calendar. get (Calendar. HOUR); if (hour> 12) {hour = hour-12;} hourDegrees = hour * 30-180; int min = calendar. get (Calendar. MINUTE); minDegrees = min * 6-180; int sec = calendar. get (Calendar. SECOND); secDegrees = sec * 6-180; Log. I ("tag", "" + hour + "" + min + "" + sec);}/*** timer */private Handler mHandler = new Handler () {public void handleMessage (android. OS. message msg) {switch (msg. what) {case 10: calculate (); invalidate (); this. sendEmptyMessageDelayed (10,100 0); break; default: break ;}};};}4. Constant data

    
 
  14sp
     
 
  100dip
     
 
  9dip
     
 
  15dip
     
 
  5dip
     
 
  3dip