Android：动态地将图像按钮添加到表布局中的行

发布于 2025-01-06 20:20:57 字数 997 浏览 0 评论 0原文

我需要向表格布局添加多行，并且需要向每一行添加两个图像按钮。每次启动活动时，行数可能不同 - 我查看 SQLite 数据库，对于数据库中的每一行，我需要添加一个图像按钮。 Table 布局的每一行都会有两个 Image Button。到目前为止，我有这段代码：

db.open();
    int count = db.getCount();
    boolean newRow = true;
    for (int i = 0; i < count; i++) {
        if (newRow == true) {
            newRow = false;
            row = new TableRow(this);
            row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,     LayoutParams.WRAP_CONTENT));
        }
        ImageButton button = new ImageButton(this);
        row.addView(button);
        tableLayout.addView(row);
    }
    db.close();

TableRow 行在这段代码上方定义为该活动的变量。我的表布局（代码中的 tableLayout）是在 Activity 布局的 XML 代码中定义的：

<TableLayout
    android:id="@+id/tableLayoutContacts"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >


</TableLayout>

行崩溃

代码在tableLayout.addView(row);

，我无法解决此问题。有什么想法吗？谢谢！！

原文

I need to add a number of rows to my Table layout and to each row I need to add two Image Buttons. Number of rows can be different each time I start the Activity - I look into a SQLite database and for each row in the database I need to add an Image Button. And there will be two Image Buttons in each row of Table layout. So far, I have this code:

db.open();
    int count = db.getCount();
    boolean newRow = true;
    for (int i = 0; i < count; i++) {
        if (newRow == true) {
            newRow = false;
            row = new TableRow(this);
            row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,     LayoutParams.WRAP_CONTENT));
        }
        ImageButton button = new ImageButton(this);
        row.addView(button);
        tableLayout.addView(row);
    }
    db.close();

TableRow row is defined above this block of code simply as variable for this Activity. My Table layout (tableLayout in code) is defined in XML code of the Activity layout:

<TableLayout
    android:id="@+id/tableLayoutContacts"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >


</TableLayout>

The code crashes at the line

tableLayout.addView(row);

I wasnt able to resolve this. Any ideas? Thanks!!

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苦行僧 2025-01-13 20:20:57

我认为问题是不同的

，您的代码似乎只有一行，并且您一次又一次将该行添加到 tableLayout 中，如下所示。

tableLayout.addView(row);

这将导致在 ViewGroup 的 addViewInner 函数处出现 IllegalStateException

试试这个

db.open();
    int count = db.getCount();
    boolean newRow = false;
    for (int i = 0; i < count; i++) {
        if (i % 2 == 0)
            newRow = true;
        if (newRow == true) {
            newRow = false;
            row = new TableRow(this);
            row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,     LayoutParams.WRAP_CONTENT));
            tableLayout.addView(row);
        }
        ImageButton button = new ImageButton(this);
        row.addView(button);

    }
    db.close();

I think the problem is different

It seems that Your code will have only one row and you are adding that row again and again to tableLayout as shown below.

tableLayout.addView(row);

This will lead to IllegalStateException at addViewInner Function of ViewGroup

try this

db.open();
    int count = db.getCount();
    boolean newRow = false;
    for (int i = 0; i < count; i++) {
        if (i % 2 == 0)
            newRow = true;
        if (newRow == true) {
            newRow = false;
            row = new TableRow(this);
            row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,     LayoutParams.WRAP_CONTENT));
            tableLayout.addView(row);
        }
        ImageButton button = new ImageButton(this);
        row.addView(button);

    }
    db.close();

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