具有ImageView和TextView的RelativeLayout-将ImageView下方的TextView对齐，均以编程方式在RelativeLayout中居中

Question

我有一个带有ImageView和TextView的RelativeLayout。 我想将TextView放在ImageView（带有少量填充）的正下方，并将ImageView和TextView都对齐到RelativeLayout的中心。

RelativeLayout以编程方式添加

我已经阅读了一些有关对齐的问题，但是，我无法让它们为我工作。 下面是我当前的代码...

RelativeLayout的代码

RelativeLayout relativeLayout = new RelativeLayout(this);

ImageView的代码

        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的代码

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都设置了RelativeLayout.CENTER_IN_PARENT ，它们彼此重叠，这是可以理解的，因为RelativeLayout支持视图的重叠。

我认为为textview设置RelativeLayout.BELOW将使其在图像下方对齐，但事实并非如此。 我什至尝试了RelativeLayout.ALIGN_BOTTOM进行textview，但是即使这样也没有用。

Answer 1

尝试这个..

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);

要么

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

以下过程也可能为您服务。 1）在垂直LinearLayout中添加图像视图和文本视图。 2）将线性布局添加到相对布局的中心。（使用CENTER_IN_PARENT）。