效果图:
代码如下:
MyGridView.java
/** * 自定义GridView 解决在scrollview中只显示第一行数据的问题 * Created by Spring on 2015/11/28. */ public class MyGridView extends GridView { public MyGridView(Context context) { super(context); } public MyGridView(Context context, AttributeSet attrs) { super(context, attrs); } public MyGridView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } /** * 这两个参数指明控件可获得的空间以及关于这个空间描述的元数据. * @param widthMeasureSpec 此控件获得的宽度 * @param heightMeasureSpec 此控件获得的高度 */ @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { /** * >> 表示右移 ,如:int i=15; i>>2的结果是3,移出的部分将被抛弃。 *转为二进制的形式可能更好理解,0000 1111(15)右移2位的结果是0000 0011(3),0001 1010(18)右移3位的结果是0000 0011(3)。 * * 最大模式(MeasureSpec.AT_MOST) 这个也就是父组件,能够给出的最大的空间,当前组件的长或宽最大只能为这么大,当然也可以比这个小。 MeasureSpec.AT_MOST是最大尺寸,当控件的layout_width或layout_height指定为WRAP_CONTENT时, 控件大小一般随着控件的子空间或内容进行变化,此时控件尺寸只要不超过父控件允许的最大尺寸即可。 因此,此时的mode是AT_MOST,size给出了父控件允许的最大尺寸。 static int makeMeasureSpec(int size,int mode):根据提供的大小值和模式创建一个测量值(格式) */ int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2 ,MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, expandSpec); } }
MyGridViewAdapter.java
/** * 自定义Adapter * Created by Spring on 2015/11/28. */ public class MyGridViewAdapter extends BaseAdapter { private Context context; //12星座图片 private int [] imgs = {R.drawable.baiyang,R.drawable.jinniu,R.drawable.shuangzi, R.drawable.juxie,R.drawable.shizi,R.drawable.chunv,R.drawable.tiancheng, R.drawable.tianxie,R.drawable.sheshou,R.drawable.mojie,R.drawable.shuipin, R.drawable.shuangyu }; //12星座文字 private String [] strs = {"白羊座","金牛座","双子座","巨蟹座","狮子座", "处女座","天秤座","天蝎座","射手座","摩羯座","水瓶座","双鱼座", }; public MyGridViewAdapter(Context context) { super(); this.context = context; } @Override public int getCount() { return imgs.length; } @Override public Object getItem(int position) { return position; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null){ convertView = LayoutInflater.from(context).inflate(R.layout.main_item,parent,false); holder = new ViewHolder(); holder.imageView = (ImageView)convertView.findViewById(R.id.item_img); holder.textView = (TextView)convertView.findViewById(R.id.item_txt); convertView.setTag(holder); }else { holder = (ViewHolder)convertView.getTag(); } holder.imageView.setBackgroundResource(imgs[position]); holder.textView.setText(strs[position]); return convertView; } class ViewHolder{ ImageView imageView; TextView textView; } }
MainActivity.java
public class MainActivity extends AtySupport { private final String TAG = "TAG"; private MyGridView gridView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); gridView = (MyGridView)this.findViewById(R.id.main_gridview); gridView.setAdapter(new MyGridViewAdapter(this)); } }
activity_main.xml
<?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:orientation="vertical"> <RelativeLayout android:layout_width="match_parent" android:layout_height="50dp" android:background="@color/title"> <ImageView android:layout_width="wrap_content" android:layout_height="30dp" android:layout_centerInParent="true" android:background="@drawable/xuanzhexingzuo"/> </RelativeLayout> <!-- fillViewport = true 可以解决android布局不能撑满全屏的问题--> <ScrollView android:layout_width="match_parent" android:layout_height="wrap_content" android:fillViewport="true" android:scrollbars="none"> <custom.MyGridView android:id="@+id/main_gridview" android:layout_width="match_parent" android:layout_height="wrap_content" android:horizontalSpacing="0.0dip" android:listSelector="@null" android:numColumns="3" android:scrollbars="none" android:stretchMode="columnWidth" android:verticalSpacing="0.0dip"> </custom.MyGridView> </ScrollView> </LinearLayout>
main_item.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="12dp" android:layout_gravity="center" android:background="@drawable/bg_gridview_item"> <ImageView android:id="@+id/item_img" android:layout_width="58dp" android:layout_height="58dp" android:layout_gravity="center_horizontal" /> <TextView android:id="@+id/item_txt" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="2dp" android:textSize="14sp" android:layout_gravity="center_horizontal"/> </LinearLayout> </LinearLayout>
项目资源还未上传(PS:我还没写好呢- -),有不懂的欢迎来询问~!