在xml文件中使用String变量（Android Studio）

Question

So I try to show the String variable in GUI that I inherit from a parent activity.

This is my xml code

<EditText
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="5dp"
    android:inputType="text"
    android:textStyle="italic"
    android:id="@+id/Edit_Title_Update"
    android:text="@string/updating_title"/>

This is my String definition

 <string name="updating_title"> %s </string>

This is how I try to put date into the String

    String updating_title = getString(R.string.updating_title, show_title);
    Log.e("MyTag","Here2 "+updating_title);

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_update__diary);

In the console I can see the variable is correct

01-05 10:19:29.767    2849-2849/com.example.wenhaowu.diaryproject E/MyTag﹕ Here2 Happy

But In the emulator the String remains the same

What is the problem and how can I fix it? Thank you.

Answer 1

Changing String updating_title won't change the actual String resource updating_title in strings.xml .

You would need to set text in EditText in your activity after setContentView

Like:

EditText e = (EditText) findViewById (R.id.my_edt_text);
e.setText(updating_title);

Hope this helps.

Answer 2

nothing is wrong, you just need to find your EditText and call setText on the instance, to update its content with the new value. After setContetView

EditText t = (EditText)  findViewById(R.id.Edit_Title_Update);
t.setText(updating_title);