读取数据从Uri

package me.xiaopan.android.content;

import java.io.IOException;
import java.io.InputStream;

import me.xiaopan.java.io.IOUtils;
import android.content.Context;
import android.net.Uri;

public class ContentUtils {
/**
* 读取数据
* @param context
* @param uri
* @return
*/
public static byte[] readData(Context context, Uri uri){
InputStream inputStream = null;
try {
inputStream = context.getContentResolver().openInputStream(uri);
if(inputStream == null) return null;
return IOUtils.read(inputStream);
} catch (Exception e) {
e.printStackTrace();
return null;
}finally {
if(inputStream != null){
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}