Android Custom Learning (5) Customizing ProgressBar

Customize the last issue of view learning, first.

I believe we all have their own way of implementation, here on my method for reference.

/** * Scale Brush */private Paint linepaint;/** * Progress Brush */private Paint textpaint;/** * Progress */private int index = 0;/** * Scale */priv ate int ruling = 0;

private void Init () {linepaint = new Paint (); Linepaint.setcolor (Color.Black); Linepaint.setstrokewidth (5); Linepaint.setantialias (True); Linepaint.setstyle (style.fill); textpaint = new Paint (linepaint); Textpaint.settextsize (+); Textpaint.setcolor (Color.White); handler.sendemptymessage (0); Handler.sendemptymessagedelayed (1, 2000);}

I believe we can all understand the above. Next is the most critical OnDraw ()

@Overrideprotected void OnDraw (canvas canvas) {super.ondraw (canvas);//Move Canvas canvas.translate (getwidth ()/2, GetHeight ( )//2);//Fill Background Canvas.drawcolor (Getresources (). GetColor (R.color.gray));//Total ticks int count = 30;//Progress Word occupies size rect rect = new Rect ( ); String indexsstring = string.valueof (index), if (Index <) {indexsstring = "0" + indexsstring;} Textpaint.gettextbounds (indexsstring, 0, Indexsstring.length (), rect);//Progress Font Canvas.drawtext (indexsstring,- Rect.width ()/2, Rect.height ()/2,textpaint);//rotate the canvas, draw the scale, and change the color according to the ruling value for (int i = 0; i < count; i++) {if (I <= r uling) {Linepaint.setcolor (Getresources (). GetColor (R.color.pink));} else {linepaint.setcolor (color.black);} Canvas.drawline (0, 0, linepaint), Canvas.rotate (360/count, 0, 0);}}

Comments should be very detailed do not understand can also leave a message, the next look at the effect

After completing this, I believe the second and extremely easy!

/** * Ring */private Paint rectpaint;/** * Scale */private paint linepaint;/** * Fill */private paint fillpaint;/** * Progress word */priva TE Paint textpaint;private int index = 0;private int index2 = 0;public ProgressView2 (context context) {This (context, NULL) ;//TODO auto-generated Constructor Stub}public ProgressView2 (context context, AttributeSet Attrs) {This (context, attrs, 0);//TODO auto-generated Constructor Stub}public ProgressView2 (context context, AttributeSet attrs, int defstyle) {Super (Context, attrs, defstyle); init ();}

private void init () {rectpaint = new Paint (); Rectpaint.setantialias (true); Rectpaint.setstrokewidth, Rectpaint.setstyle (Style.stroke); Rectpaint.setcolor (Getresources (). GetColor ( R.color.dark) Linepaint = new Paint (rectpaint); Linepaint.setstrokewidth (Linepaint.setcolor); Getresources (). GetColor (r.color.pink)) Fillpaint = new Paint (linepaint); fillpaint.setstrokewidth (1); Fillpaint.setcolor ( Color.Black); Fillpaint.setalpha, textpaint = new Paint (); Textpaint.setstrokewidth (5); Textpaint.setantialias ( true); Textpaint.settextsize, Textpaint.setcolor (Color.White); handler.sendemptymessage (0); Handler.sendemptymessage (1);} 

@Overrideprotected void OnDraw (canvas canvas) {super.ondraw (canvas);//number of ticks int count = 60;//background color Canvas.drawcolor ( Getresources (). GetColor (R.color.gray));//Move Canvas canvas.translate (getwidth ()/2, GetHeight ()/2);//Ring size RECTF RECTF = new RECTF (-100,-100, 100, 100); String indexstring = string.valueof (index), if (Index <) {indexstring = "0" + indexstring;} Rect rect = new rect (); Textpaint.gettextbounds (indexstring, 0, <span style= "font-family:arial, Helvetica, Sans-serif ;" >indexstring </span><span style= "font-family:arial, Helvetica, Sans-serif;" >.length (), rect); </span>canvas.drawtext (indexstring,-rect.width ()/2, Rect.height ()/2,textpaint);//  Ring Canvas.drawarc (RECTF, 0, RECTF, false, rectpaint);//Fill Color Canvas.drawarc (linepaint, -90, index, false,); for (int i = 0; i < Index2; i++) {canvas.drawline (0, -90, 0, -110, fillpaint); Canvas.rotate (360/count, 0, 0);}}

PS: There is a bug in the uploaded code, and you should not use "XX" when measuring the font size in OnDraw. Length (), should be used Indexstring.length ()

I don't want to be careless.

Project Source

Android Custom Learning (5) Customizing ProgressBar