可扩展的Gridview布局

时间:2014-03-27 01:23:45

标签: android android-layout android-gridview

我为我的侄子制作了一个简单的卡片匹配游戏,创建了一个缩放,均匀间隔的gridview布局。它的表现非常符合我的要求,但似乎应该有一种不太复杂的方式来实现这一目标,所以我想知道是否有人能提出更好/更简单的方法。我是Android的新手,所以我可能过度设计了这个。

我有一个控制卡片数量(12-32)的设置,它可以缩放到任何尺寸的屏幕(各种尺寸和分辨率的平板电脑或手机)。

这是我的gridview XML:

<GridView xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/gridview"
android:layout_width="match_parent" 
android:layout_height="wrap_content"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:stretchMode="columnWidth"
android:gravity="center"
android:background="@drawable/wood"
android:layout_below="@id/score_board"
android:layout_above="@+id/messageparent"
/>

我有一个BaseAdapter的ImageAdapter子类,其getView看起来像这样。 getCellWidth和getCellHeight函数返回我在布局更改主活动中设置的值(见下文)。

public View getView(int position, View convertView, ViewGroup parent) {

    CardView imageView;

    if (convertView == null) {  // if it's not recycled, initialize some attributes
        imageView = new CardView(mContext,position,mCardFaces[position]); //mThumbIds[position]       
        imageView.setLayoutParams(new GridView.LayoutParams(((MainActivity)mContext).getCellWidth(), ((MainActivity)mContext).getCellHeight()));
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        //imageView.setPadding(R.dimen.card_padding, R.dimen.card_padding, R.dimen.card_padding, R.dimen.card_padding);                     
        imageView.setPadding(8, 8, 8, 8);
        imageView.setImageResource(CardView.CARDBACK);
    } else {
        imageView = (CardView) convertView;

        //If we recycle an old view, make sure it resizes appropriately
        if (imageView.getWidth() != ((MainActivity)mContext).getCellWidth()) {
            imageView.setLayoutParams(new GridView.LayoutParams(((MainActivity)mContext).getCellWidth(), ((MainActivity)mContext).getCellHeight()));
        }

        if(!mCardFaces[position].equals(imageView.getResID()))
            imageView.updateCard(mCardFaces[position]);
    }

    return imageView;
}

这是我的sizeCardsToFit方法中的相关代码:

//... algorithm to calc cols, width and height to fit screen

gridview.setNumColumns(nCols);
gridview.setColumnWidth(width);

for (int i = 0; i < gridview.getChildCount(); i++) {
    ((CardView)gridview.getChildAt(i)).setLayoutParams(new GridView.LayoutParams(width,height));
}

mCellHeight=height;
mCellWidth=width;

1 个答案:

答案 0 :(得分:0)

<GridView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/MyGrid" android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:padding="0dp"
    android:verticalSpacing="2dp" android:horizontalSpacing="2dp"
    android:scrollingCache="true" android:smoothScrollbar="true"
    android:clipChildren="true" android:alwaysDrawnWithCache="true"
    android:numColumns="auto_fit" android:columnWidth="100dp"
    android:stretchMode="columnWidth" android:gravity="center_horizontal"
    android:background="#000000">
</GridView>