Question

我要移动视频并使用：

File video = new File(url);
InputStream inputStream = null;
OutputStream stream = null;
try {
    inputStream = new FileInputStream(url);
    stream = new FileOutputStream("/storage/emulated/0/MyGallery/"+video.getName());
    byte[] buf =new byte[1024];
    int len;
    while ((len=inputStream.read(buf))!=-1){
        stream.write(buf,0,len);
    }
    inputStream.close();
    stream.flush();
    stream.close();
    video.delete();
}

然后我要使用以下命令获取所有视频文件路径：

Uri uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
String[] projection = {MediaStore.Video.VideoColumns.DATA};
Cursor cursor = context.getContentResolver().query(uri, projection, null, null, null);
ArrayList<String> pathArrList = new ArrayList<>();
if (cursor != null) {
    while (cursor.moveToNext()) {
        pathArrList.add(cursor.getString(0));
    }
    cursor.close();
}
Log.e("all path",pathArrList.toString());
return pathArrList;

pathArrList 获取旧文件路径，而不获取新文件路径。重新启动手机时，删除旧文件路径。

我要获取新的文件路径以在应用中显示如何解决此问题？

Answer 1

您是否将这些权限添加到清单了？

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

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

以编程方式删除视频-未删除的文件路径

1 个答案: