Android的编程布局按钮看法？ [英] Android, programatically layout a button view?

问题描述

我想以编程方式确定我的程序的布局，并添加一个按钮，它在一定的位置上。我不使用的布局XML作为内容视图。

I am trying to programatically define my program layout and add a button to it at a certain position. I am not using the layout xml as the content view.

RelativeLayout mainLayout;
    mainLayout = new RelativeLayout(this);
    mainLayout.setLayoutParams(new
LayoutParams(LayoutParams.FILL_PARENT,android.view.ViewGroup.LayoutParams.FILL_PARENT));

我已经加入，我想申请的属性按钮

I have then added a button that I want to apply the properties

layout align center
parent align left
height 60px
width 60px

下面是按钮为止

Button BtnNext = new Button(this);
    BtnNext.setWidth(60);
    BtnNext.setHeight(60);
    BtnNext.setFocusable(true);
    BtnNext.setId(idBtnNext);
    BtnNext.setText("Next");
    mainLayout.addView(BtnNext, 1);

的高度和宽度不能正常工作。

Height and width DON'T work correctly.

推荐答案

你可以通过设置布局PARAMS尝试

Hi you can try by setting layout params

  RelativeLayout.LayoutParams rel_btn = new RelativeLayout.LayoutParams(
            LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
  rel_btn.height = 60;
  rel_btn.width = 60;
  BtnNext.setLayoutParams(rel_btn);

您还可以通过设置相对布局PARAMS像

You can also add rules and set margins for Button by setting relative layout params like

 rel_btn.addRule(RelativeLayout.CENTER_VERTICAL);
 rel_btn.leftMargin = 220;

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