爲什麼我們使用這段代碼請任何一個告訴我

Question

submitButtonLayout =（LinearLayout）findViewById（R.id.submit_button_layout）;

submitButtonLayout.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      int permissionCheck = ContextCompat.checkSelfPermission(context, android.Manifest.permission.READ_PHONE_STATE); 

      if (permissionCheck != PackageManager.PERMISSION_GRANTED) { 
       ActivityCompat.requestPermissions((Activity) context, new String[]{ android.Manifest.permission.READ_PHONE_STATE}, Utils.REQUEST_READ_PHONE_STATE); 
      } else { 
       loginAction(); 
      } 
     } 
    }); 

Answer 1

https://developer.android.com/training/permissions/requesting.html

 
Beginning in Android 6.0 (API level 23), 
users grant permissions to apps while the app is running, 
not when they install the app. 
This approach streamlines the app install process, 
since the user does not need to grant permissions when they install or update the app. 
It also gives the user more control over the app's functionality; 
for example, a user could choose to give a camera app access to the camera but not to the device location. 
The user can revoke the permissions at any time, by going to the app's Settings screen. 

的你所需要的基本概況。通過鏈接獲取有關實施和其他限制的更多細節。