xml配置:
<!-- 在SDCard中创建与删除文件权限 -->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<!-- 往SDCard写入数据权限 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
activity代码:
String strImgPath = Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/test/";// 存放照片的文件夹
File out = new File(strImgPath);
if (!out.exists()) {
out.mkdirs();
}