feat: example of adding viewPager2

app/build.gradle

@@ -61,6 +61,8 @@ dependencies {
     implementation"androidx.navigation:navigation-fragment-ktx:$nav_version"
     implementation"androidx.navigation:navigation-ui-ktx:$nav_version"
 
+    implementation 'androidx.viewpager2:viewpager2:1.0.0-beta02'
+
     if (remote) {
         implementation 'com.hi-dhl:binding:1.1.2'
     } else {

app/src/main/AndroidManifest.xml

@@ -47,6 +47,10 @@
         <activity
             android:name=".viewbind.ViewBindIncludeActivity"
             android:screenOrientation="portrait" />
+
+        <activity
+            android:name=".viewpager2.ViewPager2Activity"
+            android:screenOrientation="portrait" />
     </application>
 
 </manifest>

app/src/main/java/com/hi/dhl/demo/binding/viewbind/ViewBindFragment.kt

@@ -11,6 +11,7 @@ import com.hi.dhl.demo.binding.databind.BindViewStubActivity
 import com.hi.dhl.demo.binding.databind.list.DataBindRecycleActivity
 import com.hi.dhl.demo.binding.databinding.FragmentViewBindBinding
 import com.hi.dhl.demo.binding.navigation.NavigationActivity
+import com.hi.dhl.demo.binding.viewpager2.ViewPager2Activity
 
 /**
  * <pre>
@@ -42,7 +43,15 @@ class ViewBindFragment : Fragment(R.layout.fragment_view_bind), View.OnClickList
     }
 
     private fun getViews() = with(binding) {
-        arrayListOf<View>(btnDialog, btnRecycle, btnNavigation, btnDialog, btnStub, btnInclude)
+        arrayListOf<View>(
+            btnDialog,
+            btnRecycle,
+            btnNavigation,
+            btnDialog,
+            btnStub,
+            btnInclude,
+            btnViewPager
+        )
     }
 
     override fun onClick(v: View) {
@@ -59,6 +68,7 @@ class ViewBindFragment : Fragment(R.layout.fragment_view_bind), View.OnClickList
                 btnNavigation -> NavigationActivity.startActivity(requireActivity())
                 btnStub -> BindViewStubActivity.startActivtiy(requireActivity())
                 btnInclude -> ViewBindIncludeActivity.startActivtiy(requireActivity())
+                btnViewPager -> ViewPager2Activity.startActivity(requireActivity())
                 else -> {
                 }
             }

app/src/main/java/com/hi/dhl/demo/binding/viewpager2/Fragment1.kt

@@ -0,0 +1,48 @@
+package com.hi.dhl.demo.binding.viewpager2
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.viewpager2.adapter.FragmentStateAdapter
+import com.hi.dhl.binding.viewbind
+import com.hi.dhl.demo.binding.databinding.Fragment1Binding
+
+/**
+ * <pre>
+ *     author: dhl
+ *     date  : 2020/12/21
+ *     desc  :
+ * </pre>
+ */
+class Fragment1 : Fragment() {
+
+    val binding: Fragment1Binding by viewbind()
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        return binding.root
+    }
+
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        with(binding) {
+            viewpager2.adapter = object : FragmentStateAdapter(this@Fragment1.requireActivity()) {
+                override fun getItemCount() = 2
+
+                override fun createFragment(position: Int): Fragment {
+                    return when (position) {
+                        0 -> Fragment4()
+                        else -> Fragment5()
+                    }
+                }
+            }
+
+        }
+    }
+
+}

app/src/main/java/com/hi/dhl/demo/binding/viewpager2/Fragment2.kt

@@ -0,0 +1,50 @@
+package com.hi.dhl.demo.binding.viewpager2
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.navigation.Navigation
+import com.hi.dhl.binding.databind
+import com.hi.dhl.demo.binding.MainViewModel
+import com.hi.dhl.demo.binding.R
+import com.hi.dhl.demo.binding.databinding.Fragment1Binding
+import com.hi.dhl.demo.binding.databinding.Fragment2Binding
+import com.hi.dhl.demo.binding.databinding.FragmentNav2Binding
+import org.koin.androidx.viewmodel.ext.android.viewModel
+
+/**
+ * <pre>
+ *     author: dhl
+ *     date  : 2020/12/21
+ *     desc  :
+ * </pre>
+ */
+class Fragment2 : Fragment() {
+
+    val binding: Fragment2Binding by databind()
+    val viewModel: MainViewModel by viewModel()
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+
+        return binding.apply {
+            lifecycleOwner = this@Fragment2
+            mainViewModel = viewModel
+        }.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        with(binding) {
+            mainViewModel = viewModel
+            viewModel.generateTimber()
+        }
+
+    }
+
+}

app/src/main/java/com/hi/dhl/demo/binding/viewpager2/Fragment3.kt

@@ -0,0 +1,32 @@
+package com.hi.dhl.demo.binding.viewpager2
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import com.hi.dhl.binding.viewbind
+import com.hi.dhl.demo.binding.R
+import com.hi.dhl.demo.binding.databinding.Fragment3Binding
+
+/**
+ * <pre>
+ *     author: dhl
+ *     date  : 2020/12/21
+ *     desc  :
+ * </pre>
+ */
+class Fragment3 : Fragment(R.layout.fragment3) {
+
+    val binding: Fragment3Binding by viewbind()
+
+//    override fun onCreateView(
+//        inflater: LayoutInflater, container: ViewGroup?,
+//        savedInstanceState: Bundle?
+//    ): View {
+//        return binding.root
+//    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+    }
+
+}

app/src/main/java/com/hi/dhl/demo/binding/viewpager2/Fragment4.kt

@@ -0,0 +1,33 @@
+package com.hi.dhl.demo.binding.viewpager2
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.hi.dhl.binding.viewbind
+import com.hi.dhl.demo.binding.databinding.Fragment4Binding
+
+/**
+ * <pre>
+ *     author: dhl
+ *     date  : 2020/12/21
+ *     desc  :
+ * </pre>
+ */
+class Fragment4 : Fragment() {
+
+    val binding: Fragment4Binding by viewbind()
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        return binding.root
+    }
+
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+    }
+}

app/src/main/java/com/hi/dhl/demo/binding/viewpager2/Fragment5.kt

@@ -0,0 +1,33 @@
+package com.hi.dhl.demo.binding.viewpager2
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.hi.dhl.binding.viewbind
+import com.hi.dhl.demo.binding.databinding.Fragment5Binding
+
+/**
+ * <pre>
+ *     author: dhl
+ *     date  : 2020/12/21
+ *     desc  :
+ * </pre>
+ */
+class Fragment5 : Fragment() {
+
+    val binding: Fragment5Binding by viewbind()
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        return binding.root
+    }
+
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+    }
+}

app/src/main/java/com/hi/dhl/demo/binding/viewpager2/ViewPager2Activity.kt

@@ -0,0 +1,88 @@
+package com.hi.dhl.demo.binding.viewpager2
+
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import androidx.appcompat.app.AppCompatActivity
+import androidx.fragment.app.FragmentTransaction
+import com.hi.dhl.binding.viewbind
+import com.hi.dhl.demo.binding.R
+import com.hi.dhl.demo.binding.databinding.ActivityViewpagerBinding
+
+
+/**
+ * <pre>
+ *     author: dhl
+ *     date  : 2021/4/10
+ *     desc  :
+ * </pre>
+ */
+class ViewPager2Activity : AppCompatActivity(), View.OnClickListener {
+    val binding: ActivityViewpagerBinding by viewbind()
+    var fragment1: Fragment1 = Fragment1()
+    var fragment2: Fragment2 = Fragment2()
+    var fragment3: Fragment3 = Fragment3()
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        with(binding) {
+
+            val fragmentTransaction = supportFragmentManager.beginTransaction()
+            fragmentTransaction.add(R.id.container, fragment3)
+            fragmentTransaction.add(R.id.container, fragment2)
+            fragmentTransaction.add(R.id.container, fragment1)
+            hideFragment(fragmentTransaction)
+            fragmentTransaction.show(fragment1)
+            fragmentTransaction.commit()
+
+            getViews().forEach {
+                it.setOnClickListener(this@ViewPager2Activity)
+            }
+        }
+
+    }
+
+    private fun getViews() = with(binding) {
+        arrayListOf<View>(
+            tab1,
+            tab2,
+            tab3
+        )
+    }
+
+    companion object {
+        fun startActivity(activity: Activity) {
+            activity.startActivity(Intent(activity, ViewPager2Activity::class.java))
+        }
+    }
+
+    override fun onClick(v: View) {
+        val fragmentTransaction = supportFragmentManager.beginTransaction()
+        hideFragment(fragmentTransaction)
+        with(binding) {
+            when (v) {
+                tab1 -> {
+                    fragmentTransaction.show(fragment1)
+                }
+                tab2 -> {
+                    fragmentTransaction.show(fragment2)
+                }
+                tab3 -> fragmentTransaction.show(fragment3)
+                else -> {
+                }
+            }
+        }
+        fragmentTransaction.commitNow()
+    }
+
+    private fun hideFragment(fragmentTransaction: FragmentTransaction) {
+        getViews().forEach {
+            fragmentTransaction.hide(fragment1)
+            fragmentTransaction.hide(fragment2)
+            fragmentTransaction.hide(fragment3)
+
+        }
+    }
+
+}