Changing the value of a TextView

Question

I am creating an app that has headers at the top of every activity and so far the way I have been doing it:

Creating a header.xml for every page. But I think there must be a more efficient way.
Can I have a constant header.xml and then change the value of the text in my onCreate-method.

This is what I have been doing so far:

chooseActivity,

with the layout chooseact.xml

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/white">

   <include layout="@layout/selectheader" />
   <include layout="@layout/redcell" />

   <ListView
    android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
   />


</TableLayout>

inside that a header.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical" >



    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:src="@drawable/headerrect" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:gravity="center"
        android:text="@string/leagues"
        android:textColor="@color/white"
        android:textSize="25dp"
        android:textStyle="bold"/>


</RelativeLayout>

he wants a more efficient way to change the text view without creating a new string right? — FabianCook, May 04 '12 at 12:47
Based here, you're doin fine, just double check though http://developer.android.com/resources/articles/layout-tricks-merge.html — Lawrence Gimenez, May 04 '12 at 12:50

score 1 · Accepted Answer · answered May 04 '12 at 12:52

Give the TextView in the header.xml an id, like you do for the ImageView. And then in the onCreate() method of each Activity you can set the text.

TextView headerText = (TextView) findById(R.id.header_text);
headerText.setText("The text that should show up");

header.xml with TextView using an id attribute:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical" >



    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:src="@drawable/headerrect" />

    <TextView
        android:id="@+id/header_text"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:gravity="center"
        android:text="@string/leagues"
        android:textColor="@color/white"
        android:textSize="25dp"
        android:textStyle="bold"/>

</RelativeLayout>

score 0 · Answer 2 · edited May 23 '17 at 12:20

0

This answer can be the another approach to use..and you will not need to add header in all xml..and wont require to make header textview in each activity.

edited May 23 '17 at 12:20

Community

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answered May 04 '12 at 12:56

MKJParekh

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Changing the value of a TextView

2 Answers2