动态添加和删除表格行 - Android
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Dynamically adding and removing table rows - Android
提问by brodie31k
I am trying to dynamically add and remove rows from a TableLayout.
我正在尝试从 TableLayout 中动态添加和删除行。
The layout is defined in an xml file.
布局在 xml 文件中定义。
I am able to successfully remove a row, but when I call the corresponding addView command nothing happens.
我能够成功删除一行，但是当我调用相应的 addView 命令时没有任何反应。
table = (TableLayout)findViewById(R.id.table);
row = (TableRow)findViewById(R.id.row);
table.removeView(row);
table.addView(row);
This results in a row being removed, but not being added again.
这会导致行被删除，但不会再次添加。
Edit: It turns out it was adding if after all, just at the bottom of the screen instead of in the same location as it was removed from.
编辑：事实证明它是在添加，如果毕竟只是在屏幕底部而不是在它被删除的同一位置。
I am able to add it in the correct position by specifying the index:
我可以通过指定索引将它添加到正确的位置：
table.addView(row,4); // 4 happens to the the row
but I can not figure out how to determine the index of the row , there does not seem to be a method to accomplish this. anyone know how do to that? (ie. if I did not know the index was 4 how could I figure that out)
但我不知道如何确定行的索引，似乎没有一种方法可以做到这一点。有谁知道怎么做？（即。如果我不知道索引是 4，我怎么能弄明白）
Edit: included XML. this is just the row in question, there are other rows above and below it
编辑：包含 XML。这只是有问题的行，它的上方和下方还有其他行
<TableRow android:id="@+id/row">
<TextView android:id="@+id/field1"
android:text="testing"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="3dip"
android:textStyle="bold"
android:textSize="18dip"
/>
<TextView android:id="@+id/field2"
android:padding="3dip"
android:text="test"
android:textSize="18dip"
android:gravity="right"
/>
</TableRow>
回答by CommonsWare
Use hierarchyviewer(in your SDK tools/directory) to determine if the row is truly not being added, or is being added but some layout parameters are messed up and so it is not appearing on-screen.
使用hierarchyviewer（在您的 SDKtools/目录中）确定该行是否真的没有被添加，或者正在被添加但一些布局参数被搞砸了，所以它没有出现在屏幕上。
回答by einschnaehkeee
public int indexOfChild (View child)
public View getChildAt (int index)
Both methods provided by TableLayout. ;-)
TableLayout 提供了这两种方法。;-)
