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在尝试向SeekBar对话框添加 时，我意识到我需要TextView反映setProgress(). SeekBar我是这样实现的：

    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，由此产生的观点似乎“推出”了TextView：

在此处输入图像描述

我究竟做错了什么？如果我以错误的方式接近这个，请告诉我。

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1 回答 1

1

你SeekBar的宽度设置为RelativeLayout.LayoutParams.MATCH_PARENT，当你添加到它的左边时，TextView它显然不会显示，因为它被推出了屏幕（因为SeekBar已经填满了整个宽度）：

    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);
于 2012-04-20T08:45:31.633 回答