feat: 首页导航图

无法切换页面

app/src/main/java/cc/niushuai/project/devcontrol/MainActivity.java

@@ -1,14 +1,65 @@
 package cc.niushuai.project.devcontrol;
 
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.navigation.NavController;
+import androidx.navigation.Navigation;
+import androidx.navigation.fragment.NavHostFragment;
+import androidx.navigation.ui.AppBarConfiguration;
+import androidx.navigation.ui.NavigationUI;
 
 import android.os.Bundle;
+import android.view.Menu;
+
+import com.google.android.material.bottomnavigation.BottomNavigationView;
+
+import cc.niushuai.project.devcontrol.databinding.ActivityMainBinding;
 
 public class MainActivity extends AppCompatActivity {
 
+    private ActivityMainBinding activityMainBinding;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
+
+        activityMainBinding = ActivityMainBinding.inflate(getLayoutInflater());
+        setContentView(activityMainBinding.getRoot());
+
+        // 设置底部导航栏
+        setBottomNavigationView();
+    }
+
+    /**
+     * 设置底部导航栏
+     *
+     * @author niushuai
+     * @date: 2022/10/13 10:42
+     */
+    private void setBottomNavigationView() {
+
+        // 导航栏控制器 获取navController的方式不同
+        // 方式一
+        NavController navController = Navigation.findNavController(this, R.id.main_nav_host_fragment_activity);
+        // 方式二
+//        NavHostFragment fragment = (NavHostFragment) getSupportFragmentManager().findFragmentById(R.id.main_nav_host_fragment_activity);
+//        NavController navController = fragment.getNavController();
+
+        // 顶部页签  右上角展开设置项
+//        AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
+//                // 设备页签
+//                R.id.id_bottom_nav_menu_device,
+//                // 日志页签
+//                R.id.id_bottom_nav_menu_log,
+//                // 设置页签
+//                R.id.id_bottom_nav_menu_set
+//        ).build();
+//        NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
+
+        // 底部导航栏
+        BottomNavigationView bottomNavView = this.findViewById(R.id.bottom_nav_view);
+
+        // 底部栏显示
+        NavigationUI.setupWithNavController(activityMainBinding.bottomNavView, navController);
     }
 }

app/src/main/java/cc/niushuai/project/devcontrol/ui/nav/main/device/NavDeviceFragment.java

@@ -0,0 +1,45 @@
+package cc.niushuai.project.devcontrol.ui.nav.main.device;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import cc.niushuai.project.devcontrol.databinding.MainNavFragmentDeviceBinding;
+
+/**
+ * 设备页面ui
+ *
+ * @author niushuai
+ * @date: 2022/10/13 10:58
+ */
+public class NavDeviceFragment extends Fragment {
+
+    private MainNavFragmentDeviceBinding navFragmentDeviceBinding;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        navFragmentDeviceBinding = MainNavFragmentDeviceBinding.inflate(inflater, container, false);
+
+        NavDeviceViewModel navDeviceViewModel = new ViewModelProvider(this).get(NavDeviceViewModel.class);
+        View rootView = navFragmentDeviceBinding.getRoot();
+
+        TextView textView = navFragmentDeviceBinding.navDeviceFragmentTextview;
+
+        navDeviceViewModel.getText().observe(getViewLifecycleOwner(), textView::setText);
+
+        return rootView;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        navFragmentDeviceBinding = null;
+    }
+}

app/src/main/java/cc/niushuai/project/devcontrol/ui/nav/main/device/NavDeviceViewModel.java

@@ -0,0 +1,18 @@
+package cc.niushuai.project.devcontrol.ui.nav.main.device;
+
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+public class NavDeviceViewModel extends ViewModel {
+
+    private final MutableLiveData<String> vText;
+
+    public NavDeviceViewModel() {
+        this.vText = new MutableLiveData<>();
+        this.vText.setValue("this is device view");
+    }
+
+    public MutableLiveData<String> getText() {
+        return this.vText;
+    }
+}

app/src/main/java/cc/niushuai/project/devcontrol/ui/nav/main/log/NavLogFragment.java

@@ -0,0 +1,41 @@
+package cc.niushuai.project.devcontrol.ui.nav.main.log;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import cc.niushuai.project.devcontrol.databinding.MainNavFragmentLogBinding;
+
+
+public class NavLogFragment extends Fragment {
+
+    private MainNavFragmentLogBinding navFragmentLogBinding;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        navFragmentLogBinding = MainNavFragmentLogBinding.inflate(inflater, container, false);
+
+        NavLogViewModel navLogViewModel = new ViewModelProvider(this).get(NavLogViewModel.class);
+        View rootView = navFragmentLogBinding.getRoot();
+
+        TextView textView = navFragmentLogBinding.navLogFragmentTextview;
+
+        navLogViewModel.getText().observe(getViewLifecycleOwner(), textView::setText);
+
+        return rootView;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        navFragmentLogBinding = null;
+    }
+
+}

app/src/main/java/cc/niushuai/project/devcontrol/ui/nav/main/log/NavLogViewModel.java

@@ -0,0 +1,18 @@
+package cc.niushuai.project.devcontrol.ui.nav.main.log;
+
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+public class NavLogViewModel extends ViewModel {
+
+    private final MutableLiveData<String> vText;
+
+    public NavLogViewModel() {
+        this.vText = new MutableLiveData<>();
+        this.vText.setValue("this is log view");
+    }
+
+    public MutableLiveData<String> getText() {
+        return this.vText;
+    }
+}

app/src/main/java/cc/niushuai/project/devcontrol/ui/nav/main/setup/NavSetUpFragment.java

@@ -0,0 +1,40 @@
+package cc.niushuai.project.devcontrol.ui.nav.main.setup;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import cc.niushuai.project.devcontrol.databinding.MainNavFragmentSetUpBinding;
+
+
+public class NavSetUpFragment extends Fragment {
+
+    private MainNavFragmentSetUpBinding navFragmentSetUpBinding;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        navFragmentSetUpBinding = MainNavFragmentSetUpBinding.inflate(inflater, container, false);
+
+        NavSetUpViewModel navSetUpViewModel = new ViewModelProvider(this).get(NavSetUpViewModel.class);
+        View rootView = navFragmentSetUpBinding.getRoot();
+
+        TextView textView = navFragmentSetUpBinding.navSetupFragmentTextview;
+
+        navSetUpViewModel.getText().observe(getViewLifecycleOwner(), textView::setText);
+
+        return rootView;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        navFragmentSetUpBinding = null;
+    }
+}

app/src/main/java/cc/niushuai/project/devcontrol/ui/nav/main/setup/NavSetUpViewModel.java

@@ -0,0 +1,18 @@
+package cc.niushuai.project.devcontrol.ui.nav.main.setup;
+
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+public class NavSetUpViewModel extends ViewModel {
+    private final MutableLiveData<String> vText;
+
+    public NavSetUpViewModel() {
+        this.vText = new MutableLiveData<>();
+        this.vText.setValue("this is setup view");
+    }
+
+    public MutableLiveData<String> getText() {
+        return this.vText;
+    }
+
+}