可編輯的文本和存儲該文本在Android

我是初學者android..i創建四個圖像，並在每個圖像下面我添加文本爲該圖像我添加了重命名選項通過長時間點擊文本..for存儲改名文本我使用共享prefrences我fragment..if我，我去下一個片段，如果我回來我的片段編輯的文本不displaying..its顯示我加在layout..can文字的人幫我....下面是我的代碼可編輯的文本和存儲該文本在Android

 public class MyFragment extends Fragment { 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    View view = inflater.inflate(R.layout.ac_listview, container, false); 

    final TextView text1 = (TextView) view.findViewById(R.id.textView8); 

      ImageView image1 = (ImageView) view.findViewById(R.id.imageView3); 


    image1.setOnClickListener(new Button.OnClickListener() { 
     @Override 
     public void onClick(View _view) { 
      int viewId = _view.getId(); 
      FragmentTransaction ft; 
      switch (viewId) { 
       case R.id.imageView3: 
        FragmentManager fm = getFragmentManager(); 
        ft = fm.beginTransaction(); 
        NEXTFRAGMENT nextFragment = new NEXTFragment(); 

        ft.replace(R.id.frame_content, nextFragment); 
        ft.addToBackStack(null); 
        ft.commit(); 
        break; 

      } 


     } 
    }); 

    text1.setText("green"); 

    text1.setOnLongClickListener(new View.OnLongClickListener() { 
     @Override 
     public boolean onLongClick(View view) { 
      LayoutInflater inflater = ((Activity) getActivity()).getLayoutInflater(); 

      View view = inflater.inflate(R.layout.name_edit, null); 
      AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getActivity()); 

      alertDialogBuilder.setView(view); 

      final AlertDialog alertDialog = alertDialogBuilder.create(); 

      Button done = (Button) View.findViewById(R.id.edit_done); 
      final TextView new1 = (TextView) View.findViewById(R.id.name); 

      done.setOnClickListener(new Button.OnClickListener() { 
       @Override 
       public void onClick(View view) { 

        String str = new1.getText().toString(); 

        if(str.equals("")) 
        { 
         new1.setError(Constants.NOT_EMPTY); 

        } 
        else{ 
         text1.setText(str); 
         SharedPreferences.Editor editor = MAINActivity._sharedPreferences.edit(); 
         editor.putString("Str", str); 
         editor.commit(); 
         alertDialog.dismiss(); 
        } 

       } 

      }); 
      alertDialog.show(); 

      return true; 

     } 


    });

來源

2016-11-25 kande raj

您應該從SharedPreferences中獲取onCreateView的TextView上的文本。按照@Anjali的答案。 –

在你的下面的代碼片段寫onCreateView它會工作：

SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); 
String imgUpdateName = prefs.getString("Str", ""); 
text1.setText(imgUpdateName);

所以你onCreateView將是：

@Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    View view = inflater.inflate(R.layout.ac_listview, container, false); 

    final TextView text1 = (TextView) view.findViewById(R.id.textView8); 

      ImageView image1 = (ImageView) view.findViewById(R.id.imageView3); 
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); 
    String imgUpdateName = prefs.getString("Str", ""); 
    text1.setText(imgUpdateName); 

....... 

Your remaining fragment code.

來源

2016-11-25 10:34:02 Anjali

anjali我試過同樣的問題，我不知道我做了什麼錯誤...你可以發送完整的代碼 –

你可以發送完整的代碼 –

在這裏你去！將這添加到你的片段代碼中！

@Override 
    public void setUserVisibleHint (boolean isVisibleToUser){ 
     super.setUserVisibleHint(isVisibleToUser); 
     if (isVisibleToUser) { 
      yourTextView.setText(""+yourSharedPrefObject.getString("Str","")); 
     } 
    }

來源

2016-11-25 10:37:59

可編輯的文本和存儲該文本在Android

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