ProgressBar 进度条设置百分比显示

rawable/progressbar

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

    <item android:id="@android:id/secondaryProgress">
        <clip>
            <shape>
                <corners android:radius="5dip" />
                <gradient
                    android:angle="0"
                    android:centerColor="#80ffb600"
                    android:centerY="0.75"
                    android:endColor="#a0ffcb00"
                    android:startColor="#80ffd300" />
            </shape>
        </clip>
    </item>
    <item android:id="@android:id/progress">
        <clip>
            <shape>
                <corners android:radius="5dip" />
                <gradient
                    android:angle="0"
                    android:endColor="#8000ff00"
                    android:startColor="#80ff0000" />
            </shape>
        </clip>
    </item>

</layer-list>

<ProgressBar
        android:id="@+id/ProgressBar"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="fill_parent"
        android:layout_height="5dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="30dp"
        android:layout_marginTop="5dp"
        android:max="100"
        android:progressDrawable="@drawable/progressbar" />

      @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ChildHolder childHolder = null;
        if(convertView == null){
            childHolder = new ChildHolder();
            convertView = View.inflate(mcontext, R.layout.item_chat, null);
            childHolder.ProgressBar = (ProgressBar) convertView.findViewById(R.id.ProgressBar);
            convertView.setTag(childHolder);
        }else {
            childHolder = (ChildHolder) convertView.getTag();
        }
        // RecordObj 实体对象
        RecordObj rd = mlist.get(position);
        
        int total_count = 0;
        for (int i = 0; i < mlist.size(); i++) {
            int count = mlist.get(i).getCount();
            total_count += count;
        }
        DecimalFormat df1 = new DecimalFormat("0.0000");  
        String str_percent = df1.format((float)rd.getCount() / total_count);
        float percent =Float.parseFloat(str_percent) * 100;
        DecimalFormat df2 = new DecimalFormat("0.00");
        String percents = df2.format(percent) + "%";
        int value = childHolder.ProgressBar.getProgress();
        if (value == 0) {
            doProgress(percent , childHolder.ProgressBar);
        } else {
            childHolder.ProgressBar.setProgress((int)percent);
        }
        return convertView;
    }