可编辑的文本和存储该文本在Android

我是初学者android..i创建四个图像，并在每个图像下面我添加文本为该图像我添加了重命名选项通过长时间点击文本..for存储改名文本我使用共享prefrences我fragment..if我，我去下一个片段，如果我回来我的片段编辑的文本不displaying..its显示我加在layout..can文字的人帮我....下面是我的代码可编辑的文本和存储该文本在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; 

     } 


    });

来源

2016-11-25 kande raj

您应该从SharedPreferences中获取onCreateView的TextView上的文本。按照@Anjali的答案。 –

在你的下面的代码片段写onCreateView它会工作：

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

所以你onCreateView将是：

@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.

来源

2016-11-25 10:34:02 Anjali

anjali我试过同样的问题，我不知道我做了什么错误...你可以发送完整的代码 –

你可以发送完整的代码 –

在这里你去！将这添加到你的片段代码中！

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

来源

2016-11-25 10:37:59

可编辑的文本和存储该文本在Android

回答

相关问题