ProgressBar 进度条设置百分比显示

 1 <layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
 2 
 3     <item android:id="@android:id/secondaryProgress">
 4         <clip>
 5             <shape>
 6                 <corners android:radius="5dip" />
 7                 <gradient
 8                     android:angle="0"
 9                     android:centerColor="#80ffb600"
10                     android:centerY="0.75"
11                     android:endColor="#a0ffcb00"
12                     android:startColor="#80ffd300" />
13             </shape>
14         </clip>
15     </item>
16     <item android:id="@android:id/progress">
17         <clip>
18             <shape>
19                 <corners android:radius="5dip" />
20                 <gradient
21                     android:angle="0"
22                     android:endColor="#8000ff00"
23                     android:startColor="#80ff0000" />
24             </shape>
25         </clip>
26     </item>
27 
28 </layer-list>

 1 <ProgressBar
 2         android:id="@+id/ProgressBar"
 3         style="?android:attr/progressBarStyleHorizontal"
 4         android:layout_width="fill_parent"
 5         android:layout_height="5dp"
 6         android:layout_marginLeft="20dp"
 7         android:layout_marginRight="30dp"
 8         android:layout_marginTop="5dp"
 9         android:max="100"
10         android:progressDrawable="@drawable/progressbar" />

 1       @Override
 2     public View getView(int position, View convertView, ViewGroup parent) {
 3         ChildHolder childHolder = null;
 4         if(convertView == null){
 5             childHolder = new ChildHolder();
 6             convertView = View.inflate(mcontext, R.layout.item_chat, null);
 7             childHolder.ProgressBar = (ProgressBar) convertView.findViewById(R.id.ProgressBar);
 8             convertView.setTag(childHolder);
 9         }else {
10             childHolder = (ChildHolder) convertView.getTag();
11         }
12         // RecordObj 实体对象
13         RecordObj rd = mlist.get(position);
14         
15         int total_count = 0;
16         for (int i = 0; i < mlist.size(); i++) {
17             int count = mlist.get(i).getCount();
18             total_count += count;
19         }
20         DecimalFormat df1 = new DecimalFormat("0.0000");  
21         String str_percent = df1.format((float)rd.getCount() / total_count);
22         float percent =Float.parseFloat(str_percent) * 100;
23         DecimalFormat df2 = new DecimalFormat("0.00");
24         String percents = df2.format(percent) + "%";
25         int value = childHolder.ProgressBar.getProgress();
26         if (value == 0) {
27             doProgress(percent , childHolder.ProgressBar);
28         } else {
29             childHolder.ProgressBar.setProgress((int)percent);
30         }
31         return convertView;
32     }