如何在android中以編程方式打開文件夾？

Question

我正在打開文件夾的Android應用程序，

我的問題是如何以編程方式在Android中打開文件夾？ 。

我嘗試了所有可用的堆棧溢出解決方案並在Google中搜索，但找不到解決方案。有人可以給我一個答案嗎？

在此先感謝。

Answer 1

public void AccessingFiles(View view) { 
    Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 
    intent.setType("*/*"); 
    intent.addCategory(Intent.CATEGORY_OPENABLE); 

    // special intent for Samsung file manager 
    Intent sIntent = new Intent("com.sec.android.app.myfiles.PICK_DATA"); 
    // if you want any file type, you can skip next line 
    sIntent.putExtra("CONTENT_TYPE", "*/*"); 
    sIntent.addCategory(Intent.CATEGORY_DEFAULT); 

    Intent chooserIntent; 
    if (getPackageManager().resolveActivity(sIntent, 0) != null){ 
     // it is device with samsung file manager 
     chooserIntent = Intent.createChooser(sIntent, "Open file"); 
     chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { intent}); 
    } 
    else { 
     chooserIntent = Intent.createChooser(intent, "Open file"); 
    } 

    try { 
     startActivityForResult(chooserIntent, CHOOSE_FILE_REQUESTCODE); 
    } 
    catch (android.content.ActivityNotFoundException ex) { 
     Toast.makeText(getApplicationContext(), "No suitable File Manager was found.", Toast.LENGTH_SHORT).show(); 
    } 
} 

Answer 2

你可以使用下面的代碼

File file = new File(path); 
     Uri uri_path = Uri.fromFile(file); 
     String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension 
       (MimeTypeMap.getFileExtensionFromUrl(path)); 


     Intent intent = new Intent(android.content.Intent.ACTION_VIEW); 
     intent.setType(mimeType); 
     intent.setDataAndType(uri_path, mimeType); 
     startActivity(intent);