被添加的TableRow但不显示 [英] TableRow is being added but doesn't display

问题描述

我有一个小应用程序，需要定期添加到tablelayout表行。每getChildCount（）方法的行被添加，但它不显示。任何建议将不胜AP preciated

  TableLayout TBL =（TableLayout）findViewById（R.id.mytbl）;
    连续的TableRow =新的TableRow（本）;
    LL的LinearLayout =新的LinearLayout（本）;
    TextView的txtView =新的TextView（本）;
    row.setId（1234）;
    row.setLayoutParams（新TableRow.LayoutParams（TableRow.LayoutParams.WRAP_CONTENT，TableRow.LayoutParams.WRAP_CONTENT））;
    row.setGravity（Gravity.CENTER）;
    row.setBackgroundResource（android.R.color.darker_gray）;
    LinearLayout.LayoutParams LP =新LinearLayout.LayoutParams（LinearLayout.LayoutParams.FILL_PARENT，LinearLayout.LayoutParams.WRAP_CONTENT，1.0F）;
    ll.setId（1589）;
    ll.setLayoutParams（LP）;
    ll.setOrientation（LinearLayout.VERTICAL）;
    ll.setBackgroundResource（R.color.header_background）;
    ll.setGravity（Gravity.CENTER）;    弦乐味精=示例文本;    txtView.setId（657）;
    txtView.setLayoutParams（新的LayoutParams（LayoutParams.FILL_PARENT，LayoutParams.WRAP_CONTENT））;
    txtView.setTextColor（R.color.a_color）;
    txtView.setBackgroundResource（R.drawable.border_a）;
    txtView.setGravity（Gravity.TOP | Gravity.LEFT）;
    txtView.setText（MSG）;
    ll.addView（txtView）;
    row.addView（Ⅱ）;
    tbl.addView（行，新TableLayout.LayoutParams（TableLayout.LayoutParams.FILL_PARENT，TableLayout.LayoutParams.WRAP_CONTENT））; //可能与布局添加此PARAMS tl.addView（TR，新TableLayout.LayoutParams（LayoutParams.FILL_PARENT，的LayoutParams。 WRAP_CONTENT））;
 

我试过tbl.RequestLayout（）和tbl.Invalidate（），但没有帮助。该表是包裹在一个滚动视图这是我最好的猜测，问题出在哪里。我一直在摆弄这几个小时，以便在正确的方向轻推肯定会有所帮助。

 ＆LT;滚动型
    机器人：ID =@ + ID / scrVw_lst
    机器人：layout_width =match_parent
    机器人：layout_height =WRAP_CONTENT
     ＆GT;    ＆LT; TableLayout
        机器人：ID =@ + ID / MYTBL
        机器人：layout_width =match_parent
        机器人：layout_height =WRAP_CONTENT
        机器人：stretchColumns =*＆GT;
 

解决方案

你有没有运行code在添加行的 TableLayout ？我模拟了一个按钮中点击添加行，我得到0 异常的尴尬鸿沟。

总之，改变的LayoutParams 封闭的LinearLayout 来的 TableRow.LayoutParams （其父是的TableRow ）

  TableRow.LayoutParams LP =新TableRow.LayoutParams（
            TableRow.LayoutParams.FILL_PARENT，
            TableRow.LayoutParams.WRAP_CONTENT，1.0F）;
    ll.setId（1589）;
    ll.setLayoutParams（LP）
 

另外，如果这不能解决问题，尝试添加：

 的android：fillViewport =真
 

在XML布局中的滚动型标记。

I have a small app that periodically needs a table row added to the tablelayout. Per the getChildCount() method the row is being added but it doesn't display. Any suggestions would be greatly appreciated

    TableLayout tbl = (TableLayout)findViewById(R.id.mytbl);
    TableRow row = new TableRow(this);
    LinearLayout ll = new LinearLayout(this);
    TextView txtView = new TextView(this);


    row.setId(1234);
    row.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,TableRow.LayoutParams.WRAP_CONTENT));
    row.setGravity(Gravity.CENTER);
    row.setBackgroundResource(android.R.color.darker_gray);


    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT,1.0f);
    ll.setId(1589);
    ll.setLayoutParams(lp); 
    ll.setOrientation(LinearLayout.VERTICAL);
    ll.setBackgroundResource(R.color.header_background);
    ll.setGravity(Gravity.CENTER);

    String msg = "Sample Text";

    txtView.setId(657);
    txtView.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
    txtView.setTextColor(R.color.a_color);
    txtView.setBackgroundResource(R.drawable.border_a);
    txtView.setGravity(Gravity.TOP | Gravity.LEFT);
    txtView.setText(msg);


    ll.addView(txtView);
    row.addView(ll);
    tbl.addView(row,new TableLayout.LayoutParams(TableLayout.LayoutParams.FILL_PARENT, TableLayout.LayoutParams.WRAP_CONTENT));//maybe add this with layout params tl.addView(tr,new TableLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

i've tried tbl.RequestLayout() and tbl.Invalidate() but no help. The table is wrapped in a scrollview which is my best guess as to where the problem is. I've been tinkering with this for several hours so a nudge in the right direction sure would be helpful

    <ScrollView
    android:id="@+id/scrVw_lst"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
     >

    <TableLayout
        android:id="@+id/mytbl"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        android:stretchColumns="*">

解决方案

Have you run the code for adding a row in your TableLayout? I've simulated adding a row on a click of a Button and I get a awkward Divide by 0 exception.

Anyway, change the LayoutParams of the enclosing Linearlayout to TableRow.LayoutParams(its parent is the TableRow):

    TableRow.LayoutParams lp = new TableRow.LayoutParams(
            TableRow.LayoutParams.FILL_PARENT,
            TableRow.LayoutParams.WRAP_CONTENT, 1.0f);
    ll.setId(1589);
    ll.setLayoutParams(lp)

Also, if this doesn't solve the problem, try to add:

android:fillViewport="true"

to the ScrollView tag in the xml layout.

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