My application got crashed because of not initializing the view

Question

Here, i am trying to call setText method but my application is getting crashed because of some initialization problem.

EditText edittext;
    SharedPreferences          


        

Answer 1

edittext is not initialized. Initialize it in onCreate.

In onCreate you have

edittext.setText(returnString); // not initialized in onCreate

You have

edittext =(EditText)findViewById(R.id.edit_message); // initialized in sendMessage

in sendMessage. So you may be setting text to edittext even before it is initialized

Answer 2

Please try with the code.

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    image =(ImageView) findViewById(R.id.imageView1);
    image.setImageResource(R.drawable.logo);
    edittext = (EditText)findViewById(R.id.edittext);        
    settings= getBaseContext().getSharedPreferences(PREFS_NAME,Context.MODE_PRIVATE);
    SharedPreferences.Editor editor = settings.edit();
    editor.putString("sharedString", "Shared Preference Data");
    editor.commit();
    String returnString=settings.getString("sharedString","Couldn't load the data");
    edittext.setText(returnString);
}

Before to use the code first look about thee shared Preferences and their examples.

SharedPreference

SharedPreferences Example

Hope it should work. Please let me know.If it not working means tell me what you want to do actually.

Answer 3

its a very common mistake .. I should initialize the editText before calling a method on it by

edittext =(EditText)findViewById(R.id.edit_message);