Android RelativeLayout并不适合视图中的所有内容

在尝试将

SeekBar

添加到对话框时，我意识到我需要一个

TextView

来反映

SeekBar

的

setProgress（）

。我是这样实施的：

    private void customDialogTimeout() {
    LinearLayout ll = new LinearLayout(getSherlockActivity());
    ll.setOrientation(LinearLayout.VERTICAL);

    RelativeLayout input = new RelativeLayout(getSherlockActivity());

    final SeekBar timeoutSeekBar = new SeekBar(getSherlockActivity());
    timeoutSeekBar.setId(1);
    final TextView seekBarStatus = new TextView(getSherlockActivity());
    seekBarStatus.setId(2);

    LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
         LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
    RelativeLayout.LayoutParams lay1 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    lay1.addRule(RelativeLayout.CENTER_VERTICAL);
    lay1.addRule(RelativeLayout.ALIGN_PARENT_LEFT);

    RelativeLayout.LayoutParams lay2 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    lay2.addRule(RelativeLayout.CENTER_VERTICAL);
    lay2.addRule(RelativeLayout.RIGHT_OF, timeoutSeekBar.getId());

    layoutParams.setMargins(30, 20, 30, 0);

    input.addView(timeoutSeekBar,lay1);
    input.addView(seekBarStatus, lay2);

    ll.addView(input, layoutParams);

然而，结果视图似乎“推出”了

TextView

：

---

我做错了什么？如果我用了错误的方法，请告诉我。

您的

SeekBar

的宽度设置为

RelativeLayout.LayoutParams.MATCH\u PARENT

并且当您将

TextView

添加到其左侧时，它显然不会显示，因为它被推出屏幕（因为

SeekBar

已经填充了整个宽度）:

    RelativeLayout.LayoutParams lay1 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    lay1.addRule(RelativeLayout.CENTER_VERTICAL);
    lay1.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
    lay1.addRule(RelativeLayout.LEFT_OF, seekBarStatus.getId());

    RelativeLayout.LayoutParams lay2 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    lay2.addRule(RelativeLayout.CENTER_VERTICAL);
    lay2.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

    layoutParams.setMargins(30, 20, 30, 0);
    input.addView(seekBarStatus, lay2);
    input.addView(timeoutSeekBar,lay1);