[移动开发]Android：文件管理器 - 跳转定位文件

?其他页面

Intent intent = new Intent(CategoryActivity.this, MainActivity.class);
intent.putExtra("Path", filepath);
startActivity(intent);

文件列表页面

Intent intent = getIntent();
path = intent.getStringExtra("Path");
if (path == null) path = "/";
genList(path);

void genList(String path) {
    String filename = "";
    File file = new File(path);
    if (file.isFile()) {
        filename = file.getName();
        path = path.substring(0, path.lastIndexOf(File.separator));
        file = new File(path);
    }
    setTitle(path);
    list_file.clear();
    File[] files;
    files = file.listFiles();
    for (File file1 : files) {
        ......
        if (filename.equals(file1.getName()))
            position = list_file.size();
        ...... 
    }
    adapter.notifyDataSetChanged();
    listView.setSelection(position);
}