android惯用代码积累

2012-08-26

android常用代码积累一、读取sd卡File file nullboolean sdCardExist Environment.getExternalStorage

android常用代码积累
一、读取sd卡
File file = null;
boolean sdCardExist = Environment.getExternalStorageState().equals(
                android.os.Environment.MEDIA_MOUNTED);
        if (sdCardExist) {
              //SD卡存在
            file = Environment.getExternalStorageDirectory();
        }