添加BaseActivity和BaseFragment

app/src/main/java/cn/yunliyunwai/beyondclouds/MainActivity.java

 package cn.yunliyunwai.beyondclouds;
 
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.MenuItem;
+
 import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentTransaction;
 import androidx.lifecycle.ViewModelProvider;
 
-import android.os.Bundle;
-import android.view.MenuItem;
-
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import cn.yunliyunwai.beyondclouds.base.BaseActivity;
 import cn.yunliyunwai.beyondclouds.databinding.ActivityMainBinding;
 import cn.yunliyunwai.beyondclouds.ui.DynamicFragment;
 import cn.yunliyunwai.beyondclouds.ui.HomeFragment;
@@ -21,30 +22,30 @@ import cn.yunliyunwai.beyondclouds.ui.MyFragment;
 import cn.yunliyunwai.beyondclouds.ui.ProjectFragment;
 import cn.yunliyunwai.beyondclouds.ui.QAFragment;
 import cn.yunliyunwai.beyondclouds.util.StatusBarUtils;
+import cn.yunliyunwai.beyondclouds.viewmodel.MainViewModel;
 
-public class MainActivity extends AppCompatActivity implements BottomNavigationView.OnNavigationItemSelectedListener {
+public class MainActivity extends BaseActivity<ActivityMainBinding> implements BottomNavigationView.OnNavigationItemSelectedListener {
 
     private List<Fragment> fragments;
 
     private MainViewModel mainViewModel;
 
-    private ActivityMainBinding binding;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         StatusBarUtils.setWindowStatusBarColor(this, R.color.colorStatusBar);
         super.onCreate(savedInstanceState);
 
-        binding = ActivityMainBinding.inflate(getLayoutInflater());
-        setContentView(binding.getRoot());
-
-
         mainViewModel = new ViewModelProvider(this, MainViewModel.factory).get(MainViewModel.class);
 
         initBottomNavigation(savedInstanceState);
 
     }
 
+    @Override
+    protected ActivityMainBinding initDataBinding(LayoutInflater inflater) {
+        return ActivityMainBinding.inflate(inflater);
+    }
+
     private void initBottomNavigation(Bundle savedInstanceState) {
         fragments = new ArrayList<>(5);
         fragments.add(new HomeFragment());

app/src/main/java/cn/yunliyunwai/beyondclouds/base/BaseActivity.java

+package cn.yunliyunwai.beyondclouds.base;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.viewbinding.ViewBinding;
+
+public abstract class BaseActivity<B extends ViewBinding> extends AppCompatActivity {
+
+    protected B binding;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        binding = initDataBinding(getLayoutInflater());
+        setContentView(binding.getRoot());
+    }
+
+    /**
+     * 初始化dataBinding
+     * @return
+     */
+    protected abstract B initDataBinding(LayoutInflater inflater);
+}

app/src/main/java/cn/yunliyunwai/beyondclouds/base/BaseFragment.java

+package cn.yunliyunwai.beyondclouds.base;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.viewbinding.ViewBinding;
+
+public abstract class BaseFragment<B extends ViewBinding> extends Fragment {
+
+    protected B binding;
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        binding = initDataBinding(inflater, container);
+        return binding.getRoot();
+    }
+
+    /**
+     * 初始化dataBinding
+     * @return
+     */
+    protected abstract B initDataBinding(@NonNull LayoutInflater inflater, @Nullable ViewGroup container);
+}

app/src/main/java/cn/yunliyunwai/beyondclouds/ui/DynamicFragment.java

@@ -7,23 +7,21 @@ import android.view.ViewGroup;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.fragment.app.Fragment;
 
+import cn.yunliyunwai.beyondclouds.base.BaseFragment;
 import cn.yunliyunwai.beyondclouds.databinding.FragmentDynamicBinding;
 
 
-public class DynamicFragment extends Fragment {
-    private FragmentDynamicBinding binding;
+public class DynamicFragment extends BaseFragment<FragmentDynamicBinding> {
 
-    @Nullable
-    @Override
-    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        binding = FragmentDynamicBinding.inflate(inflater, container, false);
-        return binding.getRoot();
-    }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
     }
+
+    @Override
+    protected FragmentDynamicBinding initDataBinding(@NonNull LayoutInflater inflater, @Nullable ViewGroup container) {
+        return FragmentDynamicBinding.inflate(inflater, container, false);
+    }
 }

app/src/main/java/cn/yunliyunwai/beyondclouds/ui/HomeFragment.java

@@ -20,20 +20,19 @@ import net.lucode.hackware.magicindicator.buildins.commonnavigator.abs.IPagerInd
 import net.lucode.hackware.magicindicator.buildins.commonnavigator.abs.IPagerTitleView;
 
 import cn.yunliyunwai.beyondclouds.R;
+import cn.yunliyunwai.beyondclouds.base.BaseFragment;
 import cn.yunliyunwai.beyondclouds.components.CommonPagerIndicator;
 import cn.yunliyunwai.beyondclouds.components.ScaleTransitionPagerTitleView;
 import cn.yunliyunwai.beyondclouds.databinding.FragmentCategoryBinding;
 import cn.yunliyunwai.beyondclouds.databinding.FragmentHomeBinding;
+import cn.yunliyunwai.beyondclouds.viewmodel.HomeFragmentViewModel;
 
-public class HomeFragment extends Fragment {
+public class HomeFragment extends BaseFragment<FragmentHomeBinding> {
     private HomeFragmentViewModel homeFragmentViewModel = null;
-    private FragmentHomeBinding binding;
 
-    @Nullable
     @Override
-    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        binding = FragmentHomeBinding.inflate(inflater, container, false);
-        return binding.getRoot();
+    protected FragmentHomeBinding initDataBinding(@NonNull LayoutInflater inflater, @Nullable ViewGroup container) {
+        return FragmentHomeBinding.inflate(inflater, container, false);
     }
 
     @Override

app/src/main/java/cn/yunliyunwai/beyondclouds/ui/MyFragment.java

@@ -7,23 +7,22 @@ import android.view.ViewGroup;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.fragment.app.Fragment;
 
+import cn.yunliyunwai.beyondclouds.base.BaseFragment;
 import cn.yunliyunwai.beyondclouds.databinding.FragmentMyBinding;
 
 
-public class MyFragment extends Fragment {
-    private FragmentMyBinding binding;
+public class MyFragment extends BaseFragment<FragmentMyBinding> {
+
 
-    @Nullable
-    @Override
-    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        binding = FragmentMyBinding.inflate(inflater, container, false);
-        return binding.getRoot();
-    }
 
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
     }
+
+    @Override
+    protected FragmentMyBinding initDataBinding(@NonNull LayoutInflater inflater, @Nullable ViewGroup container) {
+        return FragmentMyBinding.inflate(inflater, container, false);
+    }
 }

app/src/main/java/cn/yunliyunwai/beyondclouds/ui/ProjectFragment.java

@@ -7,19 +7,16 @@ import android.view.ViewGroup;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.fragment.app.Fragment;
 
+import cn.yunliyunwai.beyondclouds.base.BaseFragment;
 import cn.yunliyunwai.beyondclouds.databinding.FragmentProjectBinding;
 
 
-public class ProjectFragment extends Fragment {
-    private FragmentProjectBinding binding;
+public class ProjectFragment extends BaseFragment<FragmentProjectBinding> {
 
-    @Nullable
     @Override
-    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        binding = FragmentProjectBinding.inflate(inflater, container, false);
-        return binding.getRoot();
+    protected FragmentProjectBinding initDataBinding(@NonNull LayoutInflater inflater, @Nullable ViewGroup container) {
+        return FragmentProjectBinding.inflate(inflater, container, false);
     }
 
     @Override

app/src/main/java/cn/yunliyunwai/beyondclouds/ui/QAFragment.java

@@ -7,23 +7,20 @@ import android.view.ViewGroup;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.fragment.app.Fragment;
 
+import cn.yunliyunwai.beyondclouds.base.BaseFragment;
 import cn.yunliyunwai.beyondclouds.databinding.FragmentQaBinding;
 
 
-public class QAFragment extends Fragment {
-    private FragmentQaBinding binding;
+public class QAFragment extends BaseFragment<FragmentQaBinding> {
 
-    @Nullable
     @Override
-    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        binding = FragmentQaBinding.inflate(inflater, container, false);
-        return binding.getRoot();
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
     }
 
     @Override
-    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
+    protected FragmentQaBinding initDataBinding(@NonNull LayoutInflater inflater, @Nullable ViewGroup container) {
+        return FragmentQaBinding.inflate(inflater, container, false);
     }
 }

app/src/main/java/cn/yunliyunwai/beyondclouds/ui/HomeFragmentViewModel.java → app/src/main/java/cn/yunliyunwai/beyondclouds/viewmodel/HomeFragmentViewModel.java

-package cn.yunliyunwai.beyondclouds.ui;
+package cn.yunliyunwai.beyondclouds.viewmodel;
 
 import androidx.annotation.NonNull;
 import androidx.lifecycle.LiveData;

app/src/main/java/cn/yunliyunwai/beyondclouds/MainViewModel.java → app/src/main/java/cn/yunliyunwai/beyondclouds/viewmodel/MainViewModel.java

-package cn.yunliyunwai.beyondclouds;
+package cn.yunliyunwai.beyondclouds.viewmodel;
 
 import androidx.annotation.NonNull;
 import androidx.lifecycle.ViewModel;