滚动表格时表格行突出显示

发布于 2024-12-22 18:02:48 字数 2465 浏览 1 评论 0原文

我希望当我按下表中的行时突出显示它们。但是,我对此功能的实现导致以下结果:当我滚动表格(只是滚动,我不打算按表格行)时,系统将其解释为表格行按下并突出显示该行。 如何让系统仅在不滚动表格时突出显示行?

我制作了示例项目,它由 3 个文件组成:类定义、XML 布局和 XML 文件,其中指定按下表行时要执行的操作。 它们是:

类定义

    public class RowHighlightTestActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TableLayout mainTable=(TableLayout)findViewById(R.id.table);
        Resources r=getResources();
        // We gonna have 25 rows in our table
        for (int i = 0; i < 25; i++) {
            // Set up each row
            TableRow row=new TableRow(this);
            row.setMinimumHeight(60);
            row.setClickable(true);
            row.setBackgroundDrawable(r.getDrawable(R.drawable.table_row));

            // Add a textView to each row to be able to distinguish them
            TextView tv=new TextView(this);
            tv.setText("row " + i);
            row.addView(tv);
            mainTable.addView(row,new TableLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
        }
    }
}

XML 布局:res/layout/main.xml

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ScrollView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:scrollbars="none" >

        <TableLayout
            android:id="@+id/table"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >
        </TableLayout>
    </ScrollView>

</LinearLayout>

第三个,res/drawable/table_row.xml,这里指定表格行默认为白色,按下时为黑色:

    <?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@android:color/background_light" android:state_focused="false" android:state_pressed="false" android:state_selected="false"/>
    <item android:drawable="@android:color/background_dark" android:state_pressed="true"/>

</selector>

如何使系统不突出显示当我滚动表格时行?

I want rows in my table to be highlighted when I press them. However, my implementation of this feature leads to the following: when I scroll the table (just scroll, I'm not intended to press table rows), system interprets it as table-row-press and highlights the row.
How to make system highlight row only when I don't scroll the table?

I've made example project, it consists of 3 files: Class definition, XML layout and XML file where it is specified what to do when table row is pressed.
Here they are:

Class Definition

    public class RowHighlightTestActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TableLayout mainTable=(TableLayout)findViewById(R.id.table);
        Resources r=getResources();
        // We gonna have 25 rows in our table
        for (int i = 0; i < 25; i++) {
            // Set up each row
            TableRow row=new TableRow(this);
            row.setMinimumHeight(60);
            row.setClickable(true);
            row.setBackgroundDrawable(r.getDrawable(R.drawable.table_row));

            // Add a textView to each row to be able to distinguish them
            TextView tv=new TextView(this);
            tv.setText("row " + i);
            row.addView(tv);
            mainTable.addView(row,new TableLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
        }
    }
}

XML layout: res/layout/main.xml

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ScrollView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:scrollbars="none" >

        <TableLayout
            android:id="@+id/table"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >
        </TableLayout>
    </ScrollView>

</LinearLayout>

3rd one, res/drawable/table_row.xml, it's specified here that table rows should be white by default and dark when pressed:

    <?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@android:color/background_light" android:state_focused="false" android:state_pressed="false" android:state_selected="false"/>
    <item android:drawable="@android:color/background_dark" android:state_pressed="true"/>

</selector>

How to make system not highlight the row when I scroll the table?

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简单气质女生网名 2024-12-29 18:02:48

也许您尝试执行此操作的方式不是正确的方式。

为什么不尝试使用 ListView 而不是 ScrollView 中的 Table ?困难的滚动/选择处理已经完成并且满足您的需求......

Maybe the way you're trying to do this is not the right way.

Why didn't you try to use ListView instead of a Table inside a ScrollView ? The difficult scrolling/selection handling is already done and fits your needs...

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