安卓工作室:安卓可滚动的网格视图，可点击按钮，引导不同的活动

Question

am正在创建一个android应用程序，通过该应用程序，我需要创建一个带有可点击图像按钮的网格视图，每个按钮都指向不同的活动。此外，网格视图应该是可滚动的，因为我有很多按钮要添加。有人能帮我怎么做吗？非常感谢。以下是我尝试做的一个示例：示例可点击网格视图：

Answer 1

activitymain.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
     android:orientation="vertical"
    tools:context=".MainActivity" >
    <GridView
        android:id="@+id/gridView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView1"
        android:numColumns="3" >
    </GridView>
   <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="25dp"
        android:textStyle="bold"
        android:text=" Computer Languages..." />
</RelativeLayout>

programlist.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" >
    <ImageView
        android:id="@+id/imageView1"
        android:layout_gravity="center"
        android:layout_width="88dp"
        android:layout_height="88dp"
           android:layout_marginTop="5dp"
    android:layout_marginBottom="5dp"
        android:src="@drawable/ic_launcher" />
    <TextView
        android:id="@+id/textView1"
        android:layout_gravity="center"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="15dp"
           android:layout_marginTop="5dp"
    android:layout_marginBottom="5dp"
        android:text="TextView" />
</LinearLayout>

在MainActivity.java 中

 package com.gnetspace.simplegridview;
    import java.util.ArrayList; 
    import android.os.Bundle;
    import android.app.Activity;
    import android.content.Context;
    import android.view.Menu;
    import android.widget.AdapterView;
    import android.widget.GridView;
    public class MainActivity extends Activity {
        GridView gv;
         Context context;    
            ArrayList prgmName;    
            public static String [] prgmNameList={"Let Us C","c++","JAVA","Jsp","Microsoft .Net","Android","PHP","Jquery","JavaScript"};
        public static int [] prgmImages={R.drawable.images,R.drawable.images1,R.drawable.images2,R.drawable.images3,R.drawable.images4,R.drawable.images5,R.drawable.images6,R.drawable.images7,R.drawable.images8};    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            gv=(GridView) findViewById(R.id.gridView1);      
            gv.setAdapter(new CustomAdapter(this, prgmNameList,prgmImages));
        }
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.main, menu);
            return true;
        }
    }

在res目录中按名称drawable创建文件夹。

 public static int [] prgmImages={R.drawable.images,R.drawable.images1,R.drawable.images2,R.drawable.images3,R.drawable.images4,R.drawable.images5,R.drawable.images6,R.drawable.images7,R.drawable.images8};

创建CustomAdapter并粘贴以下代码。

package com.gnetspace.simplegridview;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class CustomAdapter extends BaseAdapter{
    String [] result;
    Context context;
 int [] imageId;
      private static LayoutInflater inflater=null;
    public CustomAdapter(MainActivity mainActivity, String[] prgmNameList, int[] prgmImages) {
        // TODO Auto-generated constructor stub
        result=prgmNameList;
        context=mainActivity;
        imageId=prgmImages;
         inflater = ( LayoutInflater )context.
                 getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }
    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return result.length;
    }
    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return position;
    }
    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }
    public class Holder
    {
        TextView tv;
        ImageView img;
    }
    @Override
    public View getView(final int position, View convertView, ViewGroup      parent) {
        // TODO Auto-generated method stub
        Holder holder=new Holder();
        View rowView;
             rowView = inflater.inflate(R.layout.program_list, null);
             holder.tv=(TextView) rowView.findViewById(R.id.textView1);
             holder.img=(ImageView) rowView.findViewById(R.id.imageView1);
         holder.tv.setText(result[position]);
         holder.img.setImageResource(imageId[position]);
         rowView.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Toast.makeText(context, "You Clicked "+result[position], Toast.LENGTH_LONG).show();
            }
        });
        return rowView;
    }
}

源链接是编程的警告