如何在SDCARD目录中创建文件

Question

我想在SDCARD中的目录(未创建)中创建一个文件(未创建).怎么做？

谢谢.

Answer 1

请尝试以下示例:

if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){
    //handle case of no SDCARD present
} else {
    String dir = Environment.getExternalStorageDirectory()+File.separator+"myDirectory";
    //create folder
    File folder = new File(dir); //folder name
    folder.mkdirs();

    //create file
    File file = new File(dir, "filename.extension");
}

不要忘记将权限添加到AndroidManifest:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />