安卓按键的setText后失去文本对齐 [英] Android button loses text alignment after setText

问题描述

我使用XML来绘制一个旋转的进度指示器以及一些文本。在屏幕的底部我有两个按钮，它们集中在页面与每个文本也居中一个TableLayout。

I'm using xml to draw a spinning progress indicator along with some text. In the bottom of the screen I have a TableLayout with two buttons, which are centered in the page with each text also centered.

<RelativeLayout
        android:id="@+id/progresscontainer"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:gravity="center_horizontal">


        <ProgressBar android:id="@+id/progress_bar" 
            style="?android:attr/progressBarStyleSmall" 
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:paddingRight="10dp" />

        <TextView android:id="@+id/progress_text" 
            android:layout_toRightOf="@id/progress_bar"
            android:layout_width="wrap_content" 
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:text="First text" />

</RelativeLayout>

<TableLayout
    android:id="@+id/buttonbar"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:paddingTop="3dip"
    android:background="@color/buttonbar"
    android:stretchColumns="0,1">

    <TableRow>

        <Button android:id="@+id/button1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="Button1" />

        <Button android:id="@+id/button2"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="Button2" />

    </TableRow>

</TableLayout>

在code我有一个可运行的，经过几秒钟的变化对progress_text TextView的文本。

In the code I have a runnable that after a couple of seconds changes the text on the progress_text TextView.

private Runnable mTimeTask = new Runnable() {

   public void run() {
       TextView progressText = (TextView) findViewById(R.id.progress_text);
       progressText.setText("Second text");
   }

};

现在的问题是，这之后的setText（），一旦我专注于其中一个按钮，文本将丢失它的居中对齐，去一路向左。我究竟做错了什么？

The problem is that after this setText(), once I focus on one of the buttons, the text loses it's centered alignment and goes all the way to the left. What am I doing wrong?

推荐答案

我有这个问题了。看来，的setText（）改变重力的设置，所以我不得不用重新申请他们：

I had this problem too. It seems that setText() changes the gravity settings, so I had to reapply them using:

button.setGravity(Gravity.CENTER_HORIZONTAL);

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