I've found that updating a text view every second in my app burns a lot of CPU. The textview is in a horizontal LinearLayout, which is in turn inside of a vertical LinearLayout. Switching to a RelativeLayout (as recommended to increase perf) is not an option right now (I tried to get that working originally, but it was too complicated).

The horizontal LinearLayout has 3 elements. The outer ones are TextViews with a layout_weight of 0, and the middle one is a progress bar with a layout_weight of 1 to make it expand to take up most of the space. I'm changing the contents of the leftmost TextView every second

So, is there a way to change the contents of the text view without re-drawing everything? Or, can I force the TextViews to use a fixed amount of space to simplify the layout. Other tips for speeding up a LinearLayout are greatly appreciated as well.

For reference, here is my entire layout. The field I'm updating is the timeIn one.

 <?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">

<TextView 
    android:text="Artist Name" 
    android:id="@+id/curArtist" 
    android:textSize="8pt"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:paddingTop="5dp"></TextView>

<TextView 
    android:text="Song Name" 
    android:id="@+id/curSong"
    android:textSize="10pt"
    android:textStyle="bold"
    android:layout_below="@id/curArtist"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"></TextView>

<TextView 
    android:text="Album Name" 
    android:id="@+id/curAlbum"
    android:textSize="8pt"
    android:layout_below="@id/curSong"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"></TextView>

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_below="@id/curAlbum" 
    android:orientation="vertical">     

    <LinearLayout
        android:id="@+id/seekWrapper"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:minHeight="10dp"
        android:maxHeight="10dp"
        android:orientation="horizontal"> 

        <TextView 
            android:text="0:00" 
            android:id="@+id/timeIn"
            android:textSize="4pt"
            android:paddingLeft="10dp"
            android:gravity="center_vertical"
            android:layout_weight="0"
            android:layout_gravity="left|center_vertical"

            android:layout_width="wrap_content"
            android:layout_height="fill_parent"></TextView>

        <ProgressBar 
            android:layout_below="@id/curAlbum" 
            android:id="@+id/progressBar" 
            android:paddingLeft="7dp"
            android:paddingRight="7dp"
            android:layout_width="fill_parent" 
            android:layout_height="fill_parent"
            android:maxHeight="10dp"
            android:minHeight="10dp"
            android:indeterminate="false"
            android:layout_weight="1"
            android:layout_gravity="center_horizontal|center_vertical"
            style="?android:attr/progressBarStyleHorizontal"></ProgressBar>

        <TextView 
            android:text="0:00" 
            android:id="@+id/timeLeft"
            android:paddingRight="10dp"
            android:textSize="4pt"
            android:layout_gravity="right|center_vertical"
            android:layout_weight="0"
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"></TextView>

    </LinearLayout>

    <ImageView
        android:id="@+id/albumArt" 
        android:layout_weight="1"
        android:padding="5dp"
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent" android:src="@drawable/blank_album_art"></ImageView>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" > 

            <ImageButton
                android:id="@+id/prev"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" 
                android:layout_gravity="left"
                android:src="@drawable/button_prev"
                android:paddingLeft="10dp" 
                android:background="@null"></ImageButton>

            <ImageButton 
                android:id="@+id/playPause" 
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" 
                android:layout_gravity="center_horizontal"
                android:src="@drawable/button_play" 
                android:layout_weight="1" 
                android:background="@null"></ImageButton>

            <ImageButton 
                android:id="@+id/next" 
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" 
                android:src="@drawable/button_next" 
                android:layout_gravity="right"
                android:paddingRight="10dp" 
                android:background="@null"></ImageButton>
    </LinearLayout>
</LinearLayout>
</RelativeLayout>