基于机器学习的智慧党建平台

package com.example.party.activity; import androidx.annotation.NonNull; import androidx.annotation.Nullable; import androidx.appcompat.app.AppCompatActivity; import androidx.fragment.app.Fragment; import androidx.viewpager.widget.ViewPager; import android.content.Intent; import android.content.SharedPreferences; import android.content.res.ColorStateList; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.view.View; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import com.bumptech.glide.Glide; import com.bumptech.glide.load.resource.bitmap.CircleCrop; import com.bumptech.glide.request.RequestOptions; import com.example.party.R; import com.example.party.adapter.MainViewPagerAdapter; import com.example.party.bean.User; import com.example.party.fragment.HomeFragment; import com.example.party.fragment.IntelliStudyFragment; import com.example.party.fragment.MineFragment; import com.example.party.fragment.NewsFragment; import com.example.party.net.LoginNet; import com.example.party.util.ImageUrl; import com.example.party.util.UserInfo; import com.google.gson.Gson; import org.json.JSONException; import org.json.JSONObject; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity implements HomeFragment.OnFragmentInteractionListener, IntelliStudyFragment.OnFragmentInteractionListener, MineFragment.OnFragmentInteractionListener, NewsFragment.OnFragmentInteractionListener { private List<Fragment> fragments;//定义fragments链表 private HomeFragment homeFragment;//定义homeFragment private IntelliStudyFragment intelliStudyFragment; private NewsFragment newsFragment; private MineFragment mineFragment; private ViewPager viewPager; private MainViewPagerAdapter mainViewPagerAdapter;//定义连接后端数据和前端显示的适配器接口adapter(这里是主界面的adapter) private List<ImageView> imgIcons;//定义一个用来管理图形icon的链表imgIcons private List<TextView> textTitles;//定义一个用来管理文字view的链表textTitles private List<LinearLayout> linearLayoutList; private LinearLayout linearHome;//定义整个Home的LinearLayout private LinearLayout linearIntelliStudy; private LinearLayout linearNews; private LinearLayout linearMine; private Gson gson; private SharedPreferences preferences; public static final int LOGIN_SUCCESS = 1; public static final int LOGIN_REQUEST = 2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initData(); initView(); initListener(); } public void initData() { //将home、intellistudy、news、mine四个fragments添加到链表fragments中 fragments = new ArrayList<>(); homeFragment = new HomeFragment(); fragments.add(homeFragment); intelliStudyFragment = new IntelliStudyFragment(); fragments.add(intelliStudyFragment); newsFragment = new NewsFragment(); fragments.add(newsFragment); mineFragment = new MineFragment(); fragments.add(mineFragment); imgIcons = new ArrayList<>(); textTitles = new ArrayList<>(); gson = new Gson(); preferences = getSharedPreferences("Party", MODE_PRIVATE); UserInfo.loadUserInfo(preferences); new LoginNet(new Handler() { @Override public void handleMessage(@NonNull Message msg) { String response = (String) msg.obj; if (!response.equals("error")) { UserInfo.user.setState(User.LOGIN); loginSuccess(UserInfo.user); } } }).post(UserInfo.user.getAccount(), UserInfo.user.getPassword()); } public void initView() { viewPager = findViewById(R.id.main_viewPager); mainViewPagerAdapter = new MainViewPagerAdapter(getSupportFragmentManager(), 1, fragments); viewPager.setAdapter(mainViewPagerAdapter); viewPager.setCurrentItem(0); viewPager.setOffscreenPageLimit(3); imgIcons.add(findViewById(R.id.icon_label_home)); imgIcons.add(findViewById(R.id.icon_label_intelli_study)); imgIcons.add(findViewById(R.id.icon_label_message)); imgIcons.add(findViewById(R.id.icon_label_mine)); textTitles.add(findViewById(R.id.text_label_home)); textTitles.add(findViewById(R.id.text_label_intelli_study)); textTitles.add(findViewById(R.id.text_label_message)); textTitles.add(findViewById(R.id.text_label_mine)); linearHome = findViewById(R.id.label_home); linearIntelliStudy = findViewById(R.id.label_intelli_study); linearNews = findViewById(R.id.label_message); linearMine = findViewById(R.id.label_mine); linearLayoutList = new ArrayList<>(); linearLayoutList.add(linearHome); linearLayoutList.add(linearIntelliStudy); linearLayoutList.add(linearNews); linearLayoutList.add(linearMine); } public void initListener() { linearHome.setOnClickListener(v -> { changePage(0); viewPager.setCurrentItem(0); }); linearIntelliStudy.setOnClickListener(v -> { changePage(1); viewPager.setCurrentItem(1); }); linearNews.setOnClickListener(v -> { changePage(2); viewPager.setCurrentItem(2); }); linearMine.setOnClickListener(v -> { changePage(3); viewPager.setCurrentItem(3); }); viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int i) { changePage(i); } @Override public void onPageScrollStateChanged(int state) { } }); } // 0xffff4400 红色 // 0xffb0b2bf 灰色 private void changePage(int i) { for (ImageView imgIcon : imgIcons) { imgIcon.setImageTintList(ColorStateList.valueOf(0xffb0b2bf)); } for (TextView textTitle : textTitles) { textTitle.setTextColor(0xffb0b2bf); } imgIcons.get(i).setImageTintList(ColorStateList.valueOf(0xffff4400)); textTitles.get(i).setTextColor(0xffff4400); } @Override public void onFragmentInteraction(JSONObject jsonObject) { String fragment = null; try { fragment = (String) jsonObject.get("action"); } catch (JSONException e) { e.printStackTrace(); } assert fragment != null; if (fragment.equals("self_think")) { startActivity(new Intent(MainActivity.this, SelfThinkActivity.class)); } // 登录页 if (fragment.equals("sign_in")) { Intent intent = new Intent(MainActivity.this, SignInActivity.class); startActivityForResult(intent, MainActivity.LOGIN_REQUEST); } if (fragment.equals("logout")) { deleteUser(); logout(); } if (fragment.equals("about")) { startActivity(new Intent(MainActivity.this, AboutActivity.class)); } if (fragment.equals("q_and_a")) { startActivity(new Intent(MainActivity.this, IntelliQAActivity.class)); } if (fragment.equals("account_manage")) { startActivity(new Intent(MainActivity.this, AccountManageActivity.class)); } if (fragment.equals("group")) { startActivity(new Intent(MainActivity.this, StudyActivity.class).putExtra("party_stu