Question

我以编程方式创建了一个包含按钮的RelativeLayout。我还创建了一个ScrollView，其中包含LinearLayout，其中TextViews超过10 RelativeLayout。我希望将TextViews对齐并固定。当有人试图向下滚动时，我希望所有RelativeLayout都在固定RelativeLayout之后。我希望该按钮始终可见。使用此代码，不会显示@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final RelativeLayout relativeLayout = new RelativeLayout(this); RelativeLayout.LayoutParams relativeLayoutParams = new RelativeLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT); relativeLayout.setLayoutParams(relativeLayoutParams); this.setContentView(relativeLayout); final Button restartButton = new Button(this); restartButton.setText(R.string.restartButton); LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); restartButton.setLayoutParams(buttonParams); relativeLayout.addView(restartButton); ScrollView scrollView = new ScrollView(this); this.setContentView(scrollView); final LinearLayout linearLayout = new LinearLayout(this); LinearLayout.LayoutParams linearLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT); linearLayout.setLayoutParams(linearLayoutParams); linearLayout.setOrientation(linearLayout.VERTICAL); scrollView.addView(linearLayout); TextView textView1 = new TextView(this); testTitle.setText(R.string.text_view1); linearLayout.addView(textView1); // + other 10 text views }和按钮。我哪里错了？

RelativeLayout（固定）
- 按钮
的LinearLayout
- ScrollView
- TextView
- +其他10个TextViews
这是我的代码：

border

谢谢！

Answer 1

在您的代码中，用ScrollView替换RelativeLayout。首先将一些LinearLayout设置为contentView，然后通过addView(relativeLayout)将RelativeLayout放在那里，然后通过addView(scrollView)放置滚动视图

编辑：

您的新代码：

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        final LinearLayout mainLinearLayout = new LinearLayout(this);
        LinearLayout.LayoutParams mainLinearLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
        mainLinearLayout.setLayoutParams(mainLinearLayoutParams);
        mainLinearLayout.setOrientation(LinearLayout.VERTICAL);
        this.setContentView(mainLinearLayout);

        final RelativeLayout relativeLayout = new RelativeLayout(this);
        RelativeLayout.LayoutParams relativeLayoutParams = new RelativeLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
        relativeLayout.setLayoutParams(relativeLayoutParams);
        mainLinearLayout.addView(relativeLayout);

        final Button restartButton = new Button(this);
        restartButton.setText(R.string.restartButton);
        LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
        restartButton.setLayoutParams(buttonParams);
        relativeLayout.addView(restartButton);

        ScrollView scrollView = new ScrollView(this);
        mainLinearLayout.addView(scrollView);

        final LinearLayout linearLayout = new LinearLayout(this);
        LinearLayout.LayoutParams linearLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
        linearLayout.setLayoutParams(linearLayoutParams);
        linearLayout.setOrientation(linearLayout.VERTICAL);
        scrollView.addView(linearLayout);

        TextView textView1 = new TextView(this);
        testTitle.setText(R.string.text_view1);
        linearLayout.addView(textView1);

        // + other 10 text views
    }

编辑2：根据评论将第一个linearLayout重命名为mainLinearLayout

如何在Android中动态创建带有可滚动内容的固定标头？

1 个答案: