Question

我有一个带有ImageView和TextView的RelativeLayout。我想要ImageView下面的TextView（带有一个小填充）以及ImageView和TextView，它们在RelativeLayout中居中对齐。

以编程方式添加RelativeLayout

关于对齐，我已经阅读了一些关于SO的问题，但是，我不能让它们为我工作。以下是我目前的代码......

RelativeLayout的代码

RelativeLayout relativeLayout = new RelativeLayout(this);

ImageView代码

        ImageView image = new ImageView(this);  
        RelativeLayout.LayoutParams lpImage = new RelativeLayout.LayoutParams(
                RelativeLayout.LayoutParams.WRAP_CONTENT,
                RelativeLayout.LayoutParams.WRAP_CONTENT);

        lpImage.addRule(RelativeLayout.CENTER_IN_PARENT);

        //Setting the parameters on the Image
        image.setLayoutParams(lpImage);

        //adding imageview to relative layout
        relativeLayout.addView(image);

TextView代码

TextView textview = new TextView(this);
RelativeLayout.LayoutParams lpTextView = new RelativeLayout.LayoutParams(
                    RelativeLayout.LayoutParams.WRAP_CONTENT,
                    RelativeLayout.LayoutParams.WRAP_CONTENT);
            lpTextView.addRule(RelativeLayout.BELOW, image.getId());

            //Setting the parameters on the TextView
            textview.setLayoutParams(lpTextView);

            //Adding TextView to relative layout
            relativeLayout.addView(textview);

如果我为图像和文本设置RelativeLayout.CENTER_IN_PARENT，它们会相互重叠，这是可以理解的，因为RelativeLayout支持视图重叠。

我认为为textview设置RelativeLayout.BELOW会使其在图像下方对齐，但事实并非如此。我甚至尝试RelativeLayout.ALIGN_BOTTOM进行textview，但即使这样也行不通。

Answer 1

试试这个..

RelativeLayout relativeLayout = new RelativeLayout(this);

RelativeLayout.LayoutParams lprela = new RelativeLayout.LayoutParams(
            RelativeLayout.LayoutParams.MATCH_PARENT,
            RelativeLayout.LayoutParams.MATCH_PARENT);
relativeLayout.setLayoutParams(lprela);

ImageView image = new ImageView(this);  
    RelativeLayout.LayoutParams lpImage = new RelativeLayout.LayoutParams(
            RelativeLayout.LayoutParams.WRAP_CONTENT,
            RelativeLayout.LayoutParams.WRAP_CONTENT);

    lpImage.addRule(RelativeLayout.ALIGN_PARENT_TOP);

    //Setting the parameters on the Image
    image.setLayoutParams(lpImage);

    //adding imageview to relative layout
    relativeLayout.addView(image);

    TextView textview = new TextView(this);
    RelativeLayout.LayoutParams lpTextView = new RelativeLayout.LayoutParams(
                RelativeLayout.LayoutParams.WRAP_CONTENT,
                RelativeLayout.LayoutParams.WRAP_CONTENT);
        lpTextView.addRule(RelativeLayout.BELOW, image.getId());

        //Setting the parameters on the TextView
        textview.setLayoutParams(lpTextView);

        //Adding TextView to relative layout
        relativeLayout.addView(textview);

或者

LinearLayout linearLayout = new LinearLayout(this);
LinearLayout.LayoutParams lp_ineer_ver = new LinearLayout.LayoutParams(
              LinearLayout.LayoutParams.MATCH_PARENT, 
              LinearLayout.LayoutParams.MATCH_PARENT);
linearLayout.setGravity(Gravity.CENTER);
linearLayout.setOrientation(LinearLayout.VERTICAL);
linearLayout.setLayoutParams(lp_ineer_ver);

ImageView image = new ImageView(this);  
        LinearLayout.LayoutParams lpImage = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT,
                LinearLayout.LayoutParams.WRAP_CONTENT);

        //Setting the parameters on the Image
        image.setLayoutParams(lpImage);

        //adding imageview to relative layout
        linearLayout.addView(image);

TextView textview = new TextView(this);
LinearLayout.LayoutParams lpTextView = new LinearLayout.LayoutParams(
                    LinearLayout.LayoutParams.WRAP_CONTENT,
                    LinearLayout.LayoutParams.WRAP_CONTENT);

            //Setting the parameters on the TextView
            textview.setLayoutParams(lpTextView);

            //Adding TextView to relative layout
            linearLayout.addView(textview);

Answer 2

以下流程也适合您。 1）添加图像视图＆amp;垂直LinearLayout中的文本视图。 2）将线性布局添加到相对布局的中心。（使用CENTER_IN_PARENT）。

使用ImageView和TextView的RelativeLayout - 在ImageView下面对齐TextView，两者都以编程方式居中于RelativeLayout

2 个答案: