Question

我想动态地将多个horizontalscrollView添加到线性布局。为此，我有一个id为mainList的linearLayout。和一个带horizontalScrollLayout的xml如下所示。它不起作用。什么是写作方式。

mainListView = (LinearLayout) findViewById(R.id.mainList);
hrscroll = (HorizontalScrollView) findViewById(R.id.hrscroll);
// hrtxt=(TextView) findViewById(R.id.hrtxt);
for(int i=0;i<categories.length;i++) {
    mainListView.addView(hrscroll);
}

horizontalScrollLayout的XML

<?xml version="1.0" encoding="utf-8"?>
<HorizontalScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:id="@+id/hrscroll"
    android:layout_height="wrap_content">
</HorizontalScrollView>

Answer 1

动态地将HorizontalScrollView添加到LinearLayout

mainListView = (LinearLayout) findViewById(R.id.mainList);
// Creating mHorizontalScrollView array for multiple Categories
HorizontalScrollView[] mHorizontalScrollView = new HorizontalScrollView[categories.length];
for(int i = 0; i < categories.length; i++) {
    mHorizontalScrollView[i] = new HorizontalScrollView(context);
    mainListView.addView(mHorizontalScrollView[i]);
}

更新答案：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/mainListView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:padding="8dp" >

    <HorizontalScrollView
        android:id="@+id/categoryOne"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <HorizontalScrollView
        android:id="@+id/categoryTwo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <HorizontalScrollView
        android:id="@+id/categoryThree"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <HorizontalScrollView
        android:id="@+id/categoryFour"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <HorizontalScrollView
        android:id="@+id/categoryFive"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <HorizontalScrollView
        android:id="@+id/categorySix"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <HorizontalScrollView
        android:id="@+id/categorySeven"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

活动文件：

绑定XML视图：

mainListView = (LinearLayout) findViewById(R.id.mainList);
categoryOne = (HorizontalScrollView) findViewById(R.id.categoryOne);
categoryTwo = (HorizontalScrollView) findViewById(R.id.categoryTwo);
categoryThree = (HorizontalScrollView) findViewById(R.id.categoryThree);
categoryFour = (HorizontalScrollView) findViewById(R.id.categoryFour);
categoryFive = (HorizontalScrollView) findViewById(R.id.categoryFive);
categorySix = (HorizontalScrollView) findViewById(R.id.categorySix);
categorySeven = (HorizontalScrollView) findViewById(R.id.categorySeven);

如何动态添加多个水平ScrollView

1 个答案: