Android progressbar实现带底部指示器和文字的进度条

本文实例为大家分享了android实现带指示器和文字的进度条，供大家参考，具体内容如下

根据项目要求需要实现以下效果：

列出源码：

public class textprogressbar extends linearlayout {
 
 string text;
 paint mpaint;
 private rect textrect;
 private bitmap bitmap;
 private progressbar progressbar;
 int progress;
 int prowidth, proheight;
 
 public textprogressbar(context context, attributeset attrs, int defstyleattr) {
  super(context, attrs, defstyleattr);
  inittext(context);
 }
 
 public textprogressbar(context context) {
  super(context);
  inittext(context);
 }
 
 public textprogressbar(context context, attributeset attrs) {
  super(context, attrs);
  inittext(context);
 }
 
 @override
 protected synchronized void ondraw(canvas canvas) {
  super.ondraw(canvas);
  progress = progressbar.getprogress();
  if (progress == 0 || progress == progressbar.getmax())
   return;
  this.mpaint.gettextbounds(this.text, 0, this.text.length(), textrect);
 
  prowidth = progressbar.getwidth();
  proheight = progressbar.getheight();
 
  //画指示器
  int bitmapx = (int) (progressbar.getleft() + prowidth * ((progress * 1f) / progressbar.getmax())) - bitmap.getwidth() / 2;
  int bitmapy = proheight + bitmap.getheight() / 2;
  if (bitmapx < 0)
   bitmapx = progressbar.getleft();
  if(bitmapx > progressbar.getright()-bitmap.getwidth())
   bitmapx = progressbar.getright()-bitmap.getwidth();
  canvas.drawbitmap(bitmap, bitmapx, bitmapy, mpaint);
 
  //写字
  int tvx = (int) (progressbar.getleft() + prowidth * ((progress * 1f) / progressbar.getmax())) - textrect.centerx();
  int tvy = proheight + bitmap.getheight() * 2 + 4;
  if (tvx < 0)
   tvx = progressbar.getleft();
  if(tvx >= progressbar.getright()-textrect.width())
   tvx = progressbar.getright()-textrect.width();
  canvas.drawtext(this.text, tvx, tvy + bitmap.getheight(), this.mpaint);
 
 }
 
 //初始化，画笔
 private void inittext(context context) {
  view inflate = view.inflate(context, r.layout.textprogressbar, this);
  progressbar = (progressbar) inflate.findviewbyid(r.id.progressbar1);
  progressbar.setprogress(50);
  setwillnotdraw(false);
  this.mpaint = new paint();
  this.mpaint.setcolor(getresources().getcolor(r.color.red));
  this.mpaint.settextsize(20);
  textrect = new rect();
  text = "0";
  bitmap = bitmapfactory.decoderesource(context.getresources(), r.mipmap.progress_top);
 }
 
 public void setprogress(int progress) {
  progressbar.setprogress(progress);
 }
 
 
 public void settext(string str) {
  text = str;
 }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。