Android——通过Uri获取文件的路径

@Override
public void onActivityResult(int requestCode,int resultCode,Intent data){
//判断requestCode是否相符
if(requestCode==REQUEST_CODE){
//获得Uri
Uri uri=intent.getData();
//通过Uri得到文件的路径
Cursor cursor=getContentResolver.query(uri,null,null,null,null);
int index=cursor.getColumnIndex("_data");
//得到路径
String path=cursor.getString(index);
}
}