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将数据显示在listview上并且点击listview时实现数据跳转到其他界面

代码如下：

activity_main.xml

1 <ListView
2             android:id="@+id/account"
3             android:layout_width="match_parent"
4             android:layout_height="match_parent"
5             android:padding="10dp"
6             android:divider="@null"
7             android:dividerHeight="6dp"
8             android:layout_below="@id/btn_add"
9             android:scrollbars="none" />

layout_account.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="wrap_content"
 5     android:layout_marginTop="10dp"
 6     android:padding="10dp"
 7     android:background="#999999">
 8 
 9     <RelativeLayout
10         android:layout_width="wrap_content"
11         android:layout_height="wrap_content">
12         <TextView
13             android:id="@+id/account_name"
14             android:layout_width="wrap_content"
15             android:layout_height="wrap_content"
16             android:text="姓名"
17             android:textStyle="bold"
18             android:textSize="20sp"/>
19         <TextView
20             android:id="@+id/gang"
21             android:layout_width="wrap_content"
22             android:layout_height="wrap_content"
23             android:text="-"
24             android:layout_toRightOf="@id/account_name"
25             android:textStyle="bold"
26             android:textSize="20sp"/>
27         <TextView
28             android:id="@+id/account_class"
29             android:layout_width="wrap_content"
30             android:layout_height="wrap_content"
31             android:layout_toRightOf="@id/gang"
32             android:text="班级"
33             android:textSize="20sp"
34             android:textStyle="bold" />
35     </RelativeLayout>
36     <LinearLayout
37         android:layout_width="wrap_content"
38         android:layout_height="wrap_content"
39         android:layout_alignParentRight="true"
40         android:orientation="vertical">
41 
42         <TextView
43             android:id="@+id/account_id"
44             android:layout_width="wrap_content"
45             android:layout_height="wrap_content"
46             android:text="学号"
47             android:textStyle="bold"/>
48         <TextView
49             android:id="@+id/account_phone"
50             android:layout_width="wrap_content"
51             android:layout_height="wrap_content"
52             android:text="电话"
53             android:layout_marginTop="5dp"/>
54     </LinearLayout>
55 
56 </RelativeLayout>

此界面效果图为：

 

Adapter.java

 1 import android.content.Context;
 2 import android.view.LayoutInflater;
 3 import android.view.View;
 4 import android.view.ViewGroup;
 5 import android.widget.ArrayAdapter;
 6 import android.widget.TextView;
 7 
 8 import java.util.List;
 9 
10 public class Adapter extends ArrayAdapter {
11     private final int resourceId;
12 
13     public Adapter(Context context, int textViewResourceId, List<User> objects){
14         super(context,textViewResourceId,objects);
15         resourceId=textViewResourceId;
16     }
17 
18     @Override
19     public View getView(int position, View convertView, ViewGroup parent){
20         User user = (User) getItem(position); // 获取当前项的Account/实例
21         View view = LayoutInflater.from(getContext()).inflate(resourceId, null);//实例化一个对象
22         TextView nametv,classtv,idtv,phonetv;
23         nametv=view.findViewById(R.id.account_name);
24         classtv=view.findViewById(R.id.account_class);
25         idtv=view.findViewById(R.id.account_id);
26         phonetv=view.findViewById(R.id.account_phone);
27         nametv.setText(user.getUserName());
28         classtv.setText(user.getUserClass());
29         idtv.setText(user.getUserID());
30         phonetv.setText(user.getUserPhone());
31         return view;
32     }
33 }

MainActivity.java

 1 public class MainActivity extends AppCompatActivity{
 2     //ListView
 3     private List<User> accountList=new ArrayList<User>();
 4     private ListView listView;
 5     @Override
 6     protected void onCreate(Bundle savedInstanceState) {
 7         super.onCreate(savedInstanceState);
 8         setContentView(R.layout.activity_main);
 9         //ListView
10         initAccount();//初始化
11         Adapter adapter=new Adapter(MainActivity.this,R.layout.layout_account,accountList);
12         listView=findViewById(R.id.account);//绑定listview
13         listView.setAdapter(adapter);//设置adapter
14 
15         //点击listView，跳转到统计信息界面
16         listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
17             @Override
18             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
19                 User user=accountList.get(position);
20                 Toast.makeText(MainActivity.this,user.toString(),Toast.LENGTH_LONG).show();
21                 Intent intent=null;
22                 intent=new Intent(MainActivity.this,InformationActivity.class);
23                 String user_name=user.getUserName();
24                 String user_ID=user.getUserID();
25                 String user_class=user.getUserClass();
26                 String user_phone=user.getUserPhone();
27                 Toast.makeText(MainActivity.this,user_name,Toast.LENGTH_LONG).show();
28                 Toast.makeText(MainActivity.this,user_ID,Toast.LENGTH_LONG).show();
29                 Toast.makeText(MainActivity.this,user_class,Toast.LENGTH_LONG).show();
30                 Toast.makeText(MainActivity.this,user_phone,Toast.LENGTH_LONG).show();
31                 intent.putExtra("User_Name",user_name);
32                 intent.putExtra("User_ID",user_ID);
33                 intent.putExtra("User_Class",user_class);
34                 intent.putExtra("User_Phone",user_phone);
35                 startActivity(intent);
36             }
37         });
38     }
39 
40     private void initAccount(){
41         //从数据库里面把数据取出来
42         MyDatabaseHelper databaseHelper=new MyDatabaseHelper(this);
43         SQLiteDatabase db=databaseHelper.getWritableDatabase();
44         Cursor cursor=db.query("user",null,null,null,null,null,null);
45         while(cursor.moveToNext()){
46             String userName=cursor.getString(cursor.getColumnIndex("userName"));
47             String userId=cursor.getString(cursor.getColumnIndex("userID"));
48             String userPhone=cursor.getString(cursor.getColumnIndex("userPhone"));
49             String userClass=cursor.getString(cursor.getColumnIndex("userClass"));
50             User user=new User(userId,userClass,userPhone,userName);
51             accountList.add(user);
52         }
53     }
54 }

activity_information,xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:app="http://schemas.android.com/apk/res-auto"
 4     xmlns:tools="http://schemas.android.com/tools"
 5     android:layout_width="match_parent"
 6     android:layout_height="match_parent"
 7     tools:context=".InformationActivity">
 8 
 9     <TextView
10         android:id="@+id/Info1"
11         android:textColor="#000000"
12         android:textSize="16sp"
13         android:layout_width="match_parent"
14         android:layout_height="50dp"
15         android:padding="5dp"
16         android:digits="1234567890."
17         android:layout_below="@id/back"
18         android:layout_marginTop="20dp"
19         android:background="#FDDEDE"
20         />
21 
22     <TextView
23         android:id="@+id/Info2"
24         android:textColor="#000000"
25         android:textSize="16sp"
26         android:layout_width="match_parent"
27         android:layout_height="50dp"
28         android:padding="5dp"
29         android:layout_below="@id/Info1"
30         android:layout_marginTop="20dp"
31         android:background="#FDDEDE"
32         />
33 
34     <TextView
35         android:id="@+id/Info3"
36         android:layout_width="match_parent"
37         android:layout_height="50dp"
38         android:layout_below="@id/Info2"
39         android:layout_marginTop="20dp"
40         android:background="#FDDEDE"
41         android:digits="1234567890"
42         android:padding="5dp"
43         android:textColor="#000000"
44         android:textSize="16sp" />
45 
46     <TextView
47         android:id="@+id/Info4"
48         android:textColor="#000000"
49         android:textSize="16sp"
50         android:layout_width="match_parent"
51         android:layout_height="50dp"
52         android:padding="5dp"
53         android:layout_below="@id/Info3"
54         android:layout_marginTop="20dp"
55         android:background="#FDDEDE"
56         android:clickable="true"
57         />
58 
59 
60 </RelativeLayout>

InformationActivity.java

 1 public class InformationActivity extends AppCompatActivity {
 2 
 3     private TextView name;
 4     private TextView ID;
 5     private TextView Classs;
 6     private TextView Phone;
 7 
 8     @Override
 9     protected void onCreate(Bundle savedInstanceState) {
10         super.onCreate(savedInstanceState);
11         setContentView(R.layout.activity_information);
12 
13         name=findViewById(R.id.Info1);
14         ID=findViewById(R.id.Info2);
15         Classs=findViewById(R.id.Info3);
16         Phone=findViewById(R.id.Info4);
17 
18         Intent intent = getIntent();
19         name.setText(intent.getStringExtra("User_Name"));
20         ID.setText(intent.getStringExtra("User_ID"));
21         Classs.setText(intent.getStringExtra("User_Class"));
22         Phone.setText(intent.getStringExtra("User_Phone"));
23 
24     }
25 }

以上即为将数据显示在listView上并且点击listView时携带数据跳转到其他界面的代码