Android使用GridView實(shí)現(xiàn)橫向滾動(dòng)效果

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

  <HorizontalScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_margin="10dp">

      <GridView
        android:id="@+id/dev_gv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:numColumns="auto_fit"
        android:stretchMode="spacingWidthUniform">
      </GridView>

    </LinearLayout>

  </HorizontalScrollView>

</LinearLayout>

/**
   * 水平GridView設(shè)置
   * @param size Item總數(shù)
   * @param gridView 需要設(shè)置的GridView
   */
  private void setHorizontalGridView(int size, GridView gridView) {
    int length = size;
    //一個(gè)界面要顯示的幾個(gè)Item
    int AnInterfaceNum=4;
    //每個(gè)Item的間距(注:如果間距過(guò)大,但屏幕寬度不夠,多出的部份會(huì)被無(wú)視)
    int spcing = 30;
    //計(jì)算當(dāng)個(gè)Item的寬度( 屏幕寬度 減去- 一個(gè)屏幕下要總item數(shù)量的間距之和 最后除/ 單個(gè)屏幕要顯示幾個(gè)Item)
    int itemWidth = ((getResources().getDisplayMetrics().widthPixels) - ((AnInterfaceNum - 1) * spcing)) / AnInterfaceNum;
    //這里筆者并不理解為什么網(wǎng)上有些代碼這里需要用到屏幕密度,但會(huì)影響我最終效果,就注釋掉
    //    float density = dm.density;
    //
    //    int gridviewWidth = (int) (size * (length) * density)+((size-1)*30);
    //    int itemWidth = (int) ((length) * density);
    //筆者更具實(shí)際情況改寫(xiě)如下:
    //GridView總長(zhǎng)度
    int gridviewWidth = (length * (itemWidth)) + ((length - 1) * spcing);

    @SuppressWarnings("deprecation")
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
        gridviewWidth, LinearLayout.LayoutParams.MATCH_PARENT);
    gridView.setLayoutParams(params);      // 設(shè)置GirdView布局參數(shù),橫向布局的關(guān)鍵
    gridView.setColumnWidth(itemWidth);     // 設(shè)置列表項(xiàng)寬
    gridView.setHorizontalSpacing(spcing);   // 設(shè)置列表項(xiàng)水平間距
    gridView.setStretchMode(GridView.NO_STRETCH);
    gridView.setNumColumns(length);       // 設(shè)置列數(shù)量=列表集合數(shù)

  }