package com.terry;
import java.io.File;
import java.text.DecimalFormat;
import android.R.integer;
import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.os.StatFs;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
public class getStorageActivity extends Activity {
private Button myButton;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findView();
viewHolder.myButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
getSize();
}
});
}
void findView(){
viewHolder.myButton=(Button)findViewById(R.id.Button01);
viewHolder.myBar=(ProgressBar)findViewById(R.id.myProgressBar);
viewHolder.myTextView=(TextView)findViewById(R.id.myTextView);
}
void getSize(){
viewHolder.myTextView.setText("");
viewHolder.myBar.setProgress(0);
//判断是否有插入存储卡
if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){
File path =Environment.getExternalStorageDirectory();
//取得sdcard文件路径
StatFs statfs=new StatFs(path.getPath());
//获取block的SIZE
long blocSize=statfs.getBlockSize();
//获取BLOCK数量
long totalBlocks=statfs.getBlockCount();
//己使用的Block的数量
long availaBlock=statfs.getAvailableBlocks();
String[] total=filesize(totalBlocks*blocSize);
String[] availale=filesize(availaBlock*blocSize);
//设置进度条的最大值
int maxValue = Integer.parseInt(availale[0]) * viewHolder.myBar.getMax() / Integer.parseInt(total[0]);
viewHolder.myBar.setProgress(maxValue);
String Text="总共：" + total[0]+total[1]+"/n" + "可用:"+availale[0] + availale[1];
viewHolder.myTextView.setText(Text);
} else if(Environment.getExternalStorageState().equals(Environment.MEDIA_REMOVED)){
Toast.makeText(getStorageActivity.this, "没有sdCard",1000).show();
}
}
//返回数组，下标1代表大小，下标2代表单位 KB/MB
String[] filesize(long size){
String str="";
if(size>=1024){
str="KB";
size/=1024;
if(size>=1024){
str="MB";
size/=1024;
}
}
DecimalFormat formatter=new DecimalFormat();
formatter.setGroupingSize(3);
String result[] =new String[2];
result[0]=formatter.format(size);
result[1]=str;
return result;
}
}