如何从代码中设置android：layout_width =“match_parent”？

Question

我有不同的布局。一些由xml创建。其他一些人通过代码进行恐慌。当我在xml上时，我可以使用“wrap_content”值设置宽度或高度。如何以相同的方式得到相同的结果？这是我的dinamic TextView的片段。我需要删除“final int width = 440;”并得到“wrap_content”的相同值。怎么样？

    final int width = 440;
    final int height = textViewHeight;
    final int top = getNewTop(height);

    FrameLayout.LayoutParams layoutParams;
    layoutParams = getLayoutParams(width, height, top);

    TextView textView;
    textView = new TextView(_registerNewMealActivity);
    textView.setText(text);
    textView.setLayoutParams(layoutParams);

    _frameLayout.addView(textView);

Answer 1

您可以使用：

textView.setLayoutParams(new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, height));

Answer 2

试试如下：

FrameLayout.LayoutParams layoutParams;
layoutParams = getLayoutParams(LayoutParams.WRAP_CONTENT, height, top);

  TextView textView;
textView = new TextView(_registerNewMealActivity);
textView.setText(text);
textView.setLayoutParams(layoutParams);

Answer 3

您可以将FrameLayout.LayoutParams.WRAP_CONTENT用于width

Answer 4

你可以这样做。

    RelativeLayout.LayoutParams flparams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT,(int)height);
            youlayoutname.setLayoutParams(flparams);

Answer 5

试试这个＆gt;＆gt;＆gt;

layoutParams.getLayoutParams().width = 20;