GridView和Gallery類似
參考android 官方api.
步驟:
1.定義一以GridView爲根標籤的xml視圖文件。
2.創建ImageAdapter類,繼承於BaseAdapter
3.在ImageAdapter類中的getView()方法中增加視圖顯示的條件
例:
imageView=new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(60,60));//缺少紅色部分容易出錯
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setImageResource(mThumbIds[parament]);
4.在主activity中調用GridView每一格的點擊事件
image.setItemOnClickListener(new ItemOnClickListener(){...});
5.設置背景(選擇)
例:
a)新建arrs.xml文件
b)關聯<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="HelloGallery">
<attr name="android:galleryItemBackground" />
</declare-styleable>
</resources>//可以在ImageAdapter類初始化中關聯
TypedArray attr = mContext.obtainStyledAttributes(R.styleable.HelloGallery);
mGalleryItemBackground = attr.getResourceId(
R.styleable.HelloGallery_android_galleryItemBackground, 0);
attr.recycle();