android: content URI的真实路径获取

URL（Uniform Resource Locator）：统一资源定位符
URI（Uniform Resource Identifier）：统一资源标识符

Intent intent=getIntent();
Uri uri=intent.getData();
String data=uri.toString();
String RealPath="";
if(ContentResolver.SCHEME_CONTENT.equals(uri.getScheme()))
{
    Cursor cursor = this.getContentResolver().query(uri, new String[]{MediaStore.Images.ImageColumns.DATA},
            null, null, null);
    if (null != cursor)
    {
        if (cursor.moveToFirst())
        {
            int index = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
            if (index > -1)
                RealPath = cursor.getString(index);
        }
        cursor.close();
    }
}
Log.d("Debug",RealPath);