团队开发 --Android
今天是第一次写，但不是第一天开始，放五一小长假，我的队友回家了，我们两个就属于分工合作，反正就最近几天的成果。
今天不早了，其他注意事项明天说，今天先上代码。
MainActivity
import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import androidx.activity.EdgeToEdge; import androidx.appcompat.app.AppCompatActivity; import androidx.core.graphics.Insets; import androidx.core.view.ViewCompat; import androidx.core.view.WindowInsetsCompat; import androidx.fragment.app.FragmentManager; import com.example.myapplication3.R; import com.example.myapplication3.activity.bean.User; import com.example.myapplication3.activity.dao.Dao; import com.example.myapplication3.activity.fragment.FiratFragment; import com.example.myapplication3.activity.mysql.getConnection; public class MainActivity extends AppCompatActivity { Button register = null; EditText name = null; EditText password = null; User user = new User(); Dao dao = new Dao(); String ne = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // 获取碎片管理器 // FragmentManager fm = getSupportFragmentManager(); // 在主容器里添加 // fm.beginTransaction().replace(R.id.fragment_firat,new FiratFragment()).commit(); findALl(); register.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { user = new User(name.getText().toString(),password.getText().toString()); Thread thread = new Thread(new Runnable() { @Override public void run() { while (dao.checkUser(user)) { runOnUiThread(new Runnable() { @Override public void run() { Toast toast = Toast.makeText(MainActivity.this,"登录成功！",Toast.LENGTH_SHORT); toast.show(); Intent intent = new Intent(MainActivity.this, MainActivity2.class); Bundle bundle = new Bundle(); bundle.putString("username",name.getText().toString()); intent.putExtras(bundle); startActivity(intent); } }); break; } while(dao.checkUser(user) == false) { runOnUiThread(new Runnable() { @Override public void run() { Toast toast = Toast.makeText(MainActivity.this,"登录失败！",Toast.LENGTH_SHORT); toast.show(); } }); break; } } });thread.start(); } }); } private void findALl() { register = findViewById(R.id.register); name = findViewById(R.id.name); password = findViewById(R.id.password); } }
MainActivity2
import android.os.Bundle; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.TextView; import androidx.activity.EdgeToEdge; import androidx.appcompat.app.AppCompatActivity; import androidx.core.graphics.Insets; import androidx.core.view.ViewCompat; import androidx.core.view.WindowInsetsCompat; import androidx.viewpager2.widget.ViewPager2; import com.example.myapplication3.R; import com.example.myapplication3.activity.fragmentpageradapter.myFragmentPagerAdapter; import com.example.myapplication3.activity.fragment.Fragment1; public class MainActivity2 extends AppCompatActivity implements RadioGroup.OnCheckedChangeListener { private String name; private RadioButton a; private RadioButton b; private RadioButton c; private RadioButton d; private RadioGroup rg_tab_bar; private ViewPager2 viewpage; private myFragmentPagerAdapter myFragmentPagerAdapter; public static final int PAGE_ONE = 0; public static final int PAGE_TWO = 1; public static final int PAGE_THREE = 2; public static final int PAGE_FOUR = 3; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2); bindView(); a.setChecked(true); } private void bindView() { Bundle bundle = getIntent().getExtras(); if(bundle != null) { name = bundle.getString("username"); } a = (RadioButton) findViewById(R.id.a); b = (RadioButton) findViewById(R.id.b); c = (RadioButton) findViewById(R.id.b); d = (RadioButton) findViewById(R.id.d); rg_tab_bar = (RadioGroup) findViewById(R.id.rg_tab_bar); viewpage = (ViewPager2) findViewById(R.id.viewpager); rg_tab_bar.setOnCheckedChangeListener(this); myFragmentPagerAdapter = new myFragmentPagerAdapter(getSupportFragmentManager(),getLifecycle()); viewpage.setAdapter(myFragmentPagerAdapter); viewpage.setCurrentItem(0); viewpage.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() { @Override public void onPageSelected(int position) { super.onPageSelected(position); switch (position) { case PAGE_ONE: if (myFragmentPagerAdapter.createFragment(PAGE_ONE) != null) { Fragment1 fragment1 = (Fragment1) myFragmentPagerAdapter.createFragment(PAGE_ONE); fragment1.upData(name); } rg_tab_bar.check(R.id.a); break; case PAGE_TWO: rg_tab_bar.check(R.id.b); break; case PAGE_THREE: rg_tab_bar.check(R.id.c); break; case PAGE_FOUR: rg_tab_bar.check(R.id.d); break; } } @Override public void onPageScrollStateChanged(int state) { super.onPageScrollStateChanged(state); if (state == 2) { switch (viewpage.getCurrentItem()) { case PAGE_ONE: a.setChecked(true); break; case PAGE_TWO: b.setChecked(true); break; case PAGE_THREE: c.setChecked(true); break; case PAGE_FOUR: d.setChecked(true); break; } } } }); } @Override public void onCheckedChanged(RadioGroup group, int checkedId) { switch (checkedId) { case R.id.a: viewpage.setCurrentItem(PAGE_ONE); break; case R.id.b: viewpage.setCurrentItem(PAGE_TWO); break; case R.id.c: viewpage.setCurrentItem(PAGE_THREE); break; case R.id.d: viewpage.setCurrentItem(PAGE_FOUR); break; } } }
Dao
import com.example.myapplication3.activity.bean.State; import com.example.myapplication3.activity.bean.User; import com.example.myapplication3.activity.mysql.getConnection; import java.sql.*; public class Dao { Connection connection ; // 添加信息 public void insertOld(User user) { connection = getConnection.getcoon(); String sql = "insert into information (`name`,`password`) value (?,?)"; try { PreparedStatement ps = connection.prepareStatement(sql); ps.setString(1, user.getName()); ps.setString(2, user.getPassword()); ps.executeUpdate(); } catch (SQLException e) { throw new RuntimeException(e); } } public void insertSubmit(State st) { connection = getConnection.getcoon(); String sql = "insert into submit (`name`,`state`) value (?,?)"; try { PreparedStatement ps = connection.prepareStatement(sql); ps.setString(1,st.getName()); ps.setString(2,st.getState()); ps.executeUpdate(); } catch (SQLException e) { throw new RuntimeException(e); } } // 查询用户是否存在 public boolean checkUser(User user) { PreparedStatement ps = null; ResultSet re = null; connection = getConnection.getcoon(); String sql = "select * from information where name = ? and password = ? "; try { ps = connection.prepareStatement(sql); ps.setString(1, user.getName()); ps.setString(2, user.getPassword()); re = ps.executeQuery(); return re.next(); } catch (Exception e) { e.printStackTrace(); } finally { try { if (re != null) re.close(); } catch (Exception e) { e.printStackTrace(); } try { if (ps != null) ps.close(); } catch (Exception e) { e.printStackTrace(); } try { if (connection != null) connection.close(); } catch (Exception e) { e.printStackTrace(); } } return false; } }
User
public class User { private String name; private String password; public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public User(String name, String password) { this.name = name; this.password = password; } public User() { } @Override public String toString() { return "User{" + "name='" + name + '\'' + ", password='" + password + '\'' + '}'; } }
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/main" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".activity.activity.MainActivity"> <FrameLayout android:id="@+id/fragment_firat" android:name="com.example.myapplication3.activity.fragment.FiratFragment" android:layout_width="match_parent" android:layout_height="70dp"/> <!-- 姓名 --> <GridLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:columnCount="2"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="姓 名:" android:textSize="20sp"/> <EditText android:id="@+id/name" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="text" /> </GridLayout> <!--密码--> <GridLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:columnCount="2"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="密 码:" android:textSize="20sp"/> <EditText android:id="@+id/password" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="textPassword" /> </GridLayout> <Button android:id="@+id/register" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="登录" /> </LinearLayout>
activity_main2.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/main" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".activity.activity.MainActivity2"> <RelativeLayout android:id="@+id/ly_top_bar" android:layout_width="match_parent" android:layout_height="48dp"> <TextView android:id="@+id/txt_topbar" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_centerInParent="true" android:gravity="center" android:text="信息" android:textSize="18sp" /> <View android:layout_width="match_parent" android:layout_height="2px" android:layout_alignParentBottom="true"/> </RelativeLayout> <RadioGroup android:id="@+id/rg_tab_bar" android:layout_width="match_parent" android:layout_height="56dp" android:layout_alignParentBottom="true" android:background="@color/white" android:orientation="horizontal"> <RadioButton android:id="@+id/a" style="@style/tab_menu_item" android:text="one"/> <RadioButton android:id="@+id/b" style="@style/tab_menu_item" android:text="two"/> <RadioButton android:id="@+id/c" style="@style/tab_menu_item" android:text="there"/> <RadioButton android:id="@+id/d" style="@style/tab_menu_item" android:text="four"/> </RadioGroup> <androidx.viewpager2.widget.ViewPager2 android:id="@+id/viewpager" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_above="@id/rg_tab_bar" android:layout_below="@id/ly_top_bar"/> </RelativeLayout>
