GridView用法整理

1.首先是布局文件

<GridView        android:id="@+id/gv_home"        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_marginTop="5dp"        android:layout_weight="1"        android:numColumns="3"        android:verticalSpacing="20dp" >    </GridView>

2.核心代码

private GridView mGvHome;// gridview 布局mGvHome = (GridView) findViewById(R.id.gv_home);        // 设置适配器        mGvHome.setAdapter(new HomeAdapter());        // 设置gridVIEW的按钮监听        mGvHome.setOnItemClickListener(new OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                switch (position) {                // 跳转到相机压力测试界面                case 0:                    startActivity(new Intent(HomeActivity.this, CamerActivity.class));                    break;                // 跳转到蓝牙压力测试界面                case 1:                    startActivity(new Intent(HomeActivity.this, BluetoothActivity.class));                    break;                // 跳转到wifi压力测试界面                case 2:                    startActivity(new Intent(HomeActivity.this, WifiActivity.class));                    break;                // 跳转到扫描误差率压力测试界面                case 3:                    startActivity(new Intent(HomeActivity.this, ScanErrorRateActivity.class));                    break;                // 跳转到扫描打开关闭压力测试界面                case 4:                    startActivity(new Intent(HomeActivity.this, ScannerirculationActivity.class));                    break;                // 跳转到休眠唤醒开关闭压力测试界面                case 5:                    startActivity(new Intent(HomeActivity.this, ScreenLockActivity.class));                    break;                // 跳转到gps测试界面                case 6:                    startActivity(new Intent(HomeActivity.this, GpsActivity.class));                    break;                }            }        });

3.新建一个类集成基础BaseAdapter，这里需要建立2个集合用于存放要展示的文字和icon，还要新建一个布局文件用于填充布局

<?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"    android:gravity="center"     >    <ImageView        android:id="@+id/iv_item"        android:layout_marginTop="5dp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:src="@drawable/ic_launcher" />    <TextView        android:id="@+id/tv_item"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginTop="2dp"        android:text="TextView" /></LinearLayout>

// gridview要展示的文字    private String[] mItems = new String[] { "相机压力", "蓝牙压力", "WiFi压力", "扫描误差率", "扫描工具压力", "休眠唤醒压力", "GPS测试" };    // gridview的图片资源ID    private int[] mPics = new int[] { R.drawable.camera, R.drawable.bt, R.drawable.wifi, R.drawable.scan,            R.drawable.home_tools, R.drawable.screenlock, R.drawable.location };public class HomeAdapter extends BaseAdapter {        @Override        public int getCount() {            // 要展示的图标数量            return mItems.length;        }        @Override        public Object getItem(int position) {            // 获取图标位置            return mItems[position];        }        @Override        public long getItemId(int position) {            // 图标ID            return position;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            // 布局填充器,注意要有view            View view = View.inflate(HomeActivity.this, R.layout.home_list, null);            // 拿到布局中的图片和文字ID，注意要有view            ImageView ivItems = (ImageView) view.findViewById(R.id.iv_item);            TextView tvItems = (TextView) view.findViewById(R.id.tv_item);            // 展现文字和图片            ivItems.setImageResource(mPics[position]);            tvItems.setText(mItems[position]);            // 返回这个布局            return view;        }    }

最后效果图

至此，一个完整的GridView就完成了，记录一下。希望对需要的人有帮助。