rangeer / fileobserver Goto Github PK

主要API：
       /**
        * Create a new file observer for a certain file or directory And start it.
        * @param path The file or directory to monitor
        * @param mask The event or events (added together) to watch for
        */
        public FileObserverJni(String path, int mask, ILifecycle callback) //推荐使用

       /**
        * Equivalent to FileObserver(path, FileObserver.ALL_EVENTS).
        */
        public FileObserverJni(String path)
        
  
例子：
        String path = Environment.getExternalStorageDirectory().getAbsolutePath();
        Log.e(TAG, "onCreate: " + path);

        FileObserverJni fileObserverJni = new FileObserverJni(path, FileObserverJni.ALL_EVENTS, new FileObserverJni.ILifecycle() {
            @Override
            public void onInit(int errno) {
                if (0 == errno) {
                    Log.e(TAG, "onInit: 初始化成功");
                } else {
                    Log.e(TAG, "onInit: 初始化失败: " + FileObserverJni.error2String(errno));
                }
            }

            @Override
            public void onExit(int errno) {
                if (0 == errno) {
                    Log.e(TAG, "onExit: 正常退出");
                } else {
                    Log.e(TAG, "onExit: 异常退出: " + errno);
                }
            }
        });
        fileObserverJni.setmCallback(new FileObserverJni.Callback() {
            @Override
            public void FileObserverEvent(String path, int mask) {
                // 在这里监听事件
                switch (mask) {
                    case FileObserverJni.CREATE:
                        Log.e(TAG, "FileObserverEvent: 文件创建：" + path);
                        break;
                    case FileObserverJni.DELETE:
                        Log.e(TAG, "FileObserverEvent: 文件删除：" + path);
                        break;
                    case FileObserverJni.MODIFY:
                        Log.e(TAG, "FileObserverEvent: 文件修改：" + path);
                        break;
                }
            }
        });