base/AndroidBaseFrameMVVM
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Modify:增加fragment，activity重建判断，增加fragment重建示例页面。

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This commit is contained in:
Dboy
2021-07-08 09:21:58 +08:00
parent 4315057371
commit 298f675029
14 changed files with 357 additions and 3 deletions
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26
lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/mvvm/v/BaseFrameActivity.kt
View File

@ -7,6 +7,7 @@ import com.alibaba.android.arouter.launcher.ARouter
import com.quyunshuo.androidbaseframemvvm.base.utils.BindingReflex
import com.quyunshuo.androidbaseframemvvm.base.utils.EventBusRegister
import com.quyunshuo.androidbaseframemvvm.base.utils.EventBusUtils
import com.quyunshuo.androidbaseframemvvm.base.utils.ViewRecreateHelper
/**
* Activity基类
@ -20,9 +21,16 @@ abstract class BaseFrameActivity<VB : ViewBinding> : AppCompatActivity(), FrameV
BindingReflex.reflexViewBinding(javaClass, layoutInflater)
}
/**
* activity页面重建帮助类
*/
private var mStatusHelper: ActivityRecreateHelper? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(mBinding.root)
//处理保存的装填
mStatusHelper?.onRestoreInstanceStatus(savedInstanceState)
// ARouter 依赖注入
ARouter.getInstance().inject(this)
// 注册EventBus
@ -38,4 +46,22 @@ abstract class BaseFrameActivity<VB : ViewBinding> : AppCompatActivity(), FrameV
)
super.onDestroy()
}
override fun isRecreate(): Boolean = mStatusHelper?.isRecreate ?: false
override fun onSaveInstanceState(outState: Bundle) {
if (mStatusHelper == null) {
//仅当触发重建需要保存状态时创建对象
mStatusHelper = ActivityRecreateHelper(outState)
} else {
mStatusHelper?.onSaveInstanceState(outState)
}
super.onSaveInstanceState(outState)
}
/**
* - activity 重建帮助工具类
*/
private class ActivityRecreateHelper(savedInstanceState: Bundle? = null) : ViewRecreateHelper(savedInstanceState)
}

29
lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/mvvm/v/BaseFrameFragment.kt
View File

@ -10,6 +10,7 @@ import com.alibaba.android.arouter.launcher.ARouter
import com.quyunshuo.androidbaseframemvvm.base.utils.BindingReflex
import com.quyunshuo.androidbaseframemvvm.base.utils.EventBusRegister
import com.quyunshuo.androidbaseframemvvm.base.utils.EventBusUtils
import com.quyunshuo.androidbaseframemvvm.base.utils.ViewRecreateHelper
/**
* Fragment基类
@ -23,6 +24,11 @@ abstract class BaseFrameFragment<VB : ViewBinding> : Fragment(), FrameView<VB> {
BindingReflex.reflexViewBinding(javaClass, layoutInflater)
}
/**
* fragment状态保存工具类
*/
private var mStatusHelper: FragmentStatusHelper? = null
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
@ -33,6 +39,8 @@ abstract class BaseFrameFragment<VB : ViewBinding> : Fragment(), FrameView<VB> {
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
//处理恢复
mStatusHelper?.onRestoreInstanceStatus(savedInstanceState)
// ARouter 依赖注入
ARouter.getInstance().inject(this)
// 注册EventBus
@ -42,10 +50,31 @@ abstract class BaseFrameFragment<VB : ViewBinding> : Fragment(), FrameView<VB> {
initRequestData()
}
override fun isRecreate(): Boolean = mStatusHelper?.isRecreate ?: false
/**
* 页面可能重建的时候回执行此方法，进行当前页面状态保存
*/
override fun onSaveInstanceState(outState: Bundle) {
if (mStatusHelper == null) {
//仅当触发重建需要保存状态时创建对象
mStatusHelper = FragmentStatusHelper(outState)
} else {
mStatusHelper?.onSaveInstanceState(outState)
}
super.onSaveInstanceState(outState)
}
override fun onDestroy() {
if (javaClass.isAnnotationPresent(EventBusRegister::class.java)) EventBusUtils.unRegister(
this
)
super.onDestroy()
}
/**
* - fragment状态保存帮助类；
* - 暂时没有其他需要保存的--空继承
*/
private class FragmentStatusHelper(savedInstanceState: Bundle? = null) : ViewRecreateHelper(savedInstanceState)
}

7
lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/mvvm/v/FrameView.kt
View File

@ -20,7 +20,12 @@ interface FrameView<VB : ViewBinding> {
fun initLiveDataObserve()
/**
* 初始化界面创建时的数据请求
* 初始化界面创建时的数据请求,尝试在此方法内调用[isRecreate]进行重建判断，防止数据重复获取
*/
fun initRequestData()
/**
* 页面是否重建，fragment被回收重新展示的时候为true，系统环境发生变化activity重新创建时为true
*/
fun isRecreate(): Boolean
}

42
lib_base/src/main/java/com/quyunshuo/androidbaseframemvvm/base/utils/ViewRecreateHelper.kt Normal file
View File

@ -0,0 +1,42 @@
package com.quyunshuo.androidbaseframemvvm.base.utils
import android.os.Bundle
/**
* @author DBoy 2021/7/8
*
* - 文件描述 : 视图，activity，fragment重建帮助类
*/
open class ViewRecreateHelper(savedInstanceState: Bundle?=null) {
/**
* 重建标记key
*/
private val KEY_RECREATE = "recreate"
/**
* 是否重建
*/
var isRecreate = false
private set
init {
if (savedInstanceState!=null) {
this.onSaveInstanceState(savedInstanceState)
}
}
/**
* 恢复状态
*/
open fun onRestoreInstanceStatus(savedInstanceState: Bundle?) {
isRecreate = savedInstanceState?.getBoolean(KEY_RECREATE) ?: false
}
/**
* 保存状态
*/
open fun onSaveInstanceState(bundle: Bundle) {
bundle.putBoolean(KEY_RECREATE, true)
}
}

8
lib_net/src/main/java/com/quyunshuo/androidbaseframemvvm/net/NetBaseUrlConstant.kt
View File

@ -8,5 +8,11 @@ package com.quyunshuo.androidbaseframemvvm.net
*/
internal object NetBaseUrlConstant {
const val MAIN_URL = ""
val MAIN_URL = "https://www.baidu.com"
get() {
if (field.isEmpty()){
throw NotImplementedError("请求改你的 MAIN_URL 的值为自己的请求地址")
}
return field
}
}

1
module_home/src/main/AndroidManifest.xml
View File

@ -11,6 +11,7 @@
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".activity.InternalPagerActivity" />
</application>
</manifest>

10
module_home/src/main/java/com/quyunshuo/module/home/MainActivity.kt
View File

@ -1,9 +1,12 @@
package com.quyunshuo.module.home
import android.content.Intent
import android.graphics.Color
import androidx.activity.viewModels
import com.quyunshuo.androidbaseframemvvm.common.ui.BaseActivity
import com.quyunshuo.module.home.activity.InternalPagerActivity
import com.quyunshuo.module.home.databinding.HomeActivityMainBinding
import com.quyunshuo.module.home.fragment.InternalFragment
import dagger.hilt.android.AndroidEntryPoint
/**
@ -20,9 +23,14 @@ class MainActivity : BaseActivity<HomeActivityMainBinding>() {
*/
private val mViewModel by viewModels<HomeViewModel>()
override fun HomeActivityMainBinding.initView() {}
override fun HomeActivityMainBinding.initView() {
goToNextBtn.setOnClickListener {
startActivity(Intent(this@MainActivity, InternalPagerActivity::class.java))
}
}
override fun initLiveDataObserve() {
// 订阅数据
mViewModel.data.observe(this, {
mBinding.vTvHello.text = it

46
module_home/src/main/java/com/quyunshuo/module/home/activity/InternalPagerActivity.kt Normal file
View File

@ -0,0 +1,46 @@
package com.quyunshuo.module.home.activity
import androidx.fragment.app.Fragment
import androidx.viewpager2.adapter.FragmentStateAdapter
import com.quyunshuo.androidbaseframemvvm.common.ui.BaseActivity
import com.quyunshuo.module.home.databinding.HomeActivityInternalLayoutBinding
import com.quyunshuo.module.home.fragment.InternalFragment
import dagger.hilt.android.AndroidEntryPoint
/**
* @author DBoy 2021/7/6 <p>
* - 文件描述 : ViewPager2+fragment 模拟Fragment页面重建。
*/
@AndroidEntryPoint
class InternalPagerActivity : BaseActivity<HomeActivityInternalLayoutBinding>() {
override fun HomeActivityInternalLayoutBinding.initView() {
initPager()
}
private fun initPager() {
val fragments = mutableListOf<Fragment>(
InternalFragment(),
InternalFragment(),
InternalFragment(),
InternalFragment(),
InternalFragment(),
InternalFragment(),
InternalFragment()
)
mBinding.viewPager.adapter = object : FragmentStateAdapter(this) {
override fun getItemCount(): Int = fragments.size
override fun createFragment(position: Int): Fragment = fragments[position]
}
}
override fun initLiveDataObserve() {
}
override fun initRequestData() {
}
}

48
module_home/src/main/java/com/quyunshuo/module/home/fragment/InternalFragment.kt Normal file
View File

@ -0,0 +1,48 @@
package com.quyunshuo.module.home.fragment
import androidx.fragment.app.viewModels
import com.quyunshuo.androidbaseframemvvm.common.ui.BaseFragment
import com.quyunshuo.module.home.databinding.HomeFragmentInternalLayoutBinding
import dagger.hilt.android.AndroidEntryPoint
/**
* @author DBoy 2021/7/6 <p>
* - 文件描述 : 测试fragment
*/
@AndroidEntryPoint
class InternalFragment : BaseFragment<HomeFragmentInternalLayoutBinding>() {
private val mViewModel by viewModels<InternalViewModel>()
override fun HomeFragmentInternalLayoutBinding.initView() {
}
override fun initLiveDataObserve() {
mViewModel.recreatedCont.observe(viewLifecycleOwner) {
mBinding.recreateContTv.text = "重建次数 $it"
}
mViewModel.firstData.observe(viewLifecycleOwner) {
mBinding.loadDataTv.text = it
}
mViewModel.isLoading.observe(viewLifecycleOwner) {
mBinding.loadingStatusTv.text = if (it) {
"正在加载..."
} else {
"加载完成！"
}
}
}
override fun initRequestData() {
//每次重建都会累加数据
mViewModel.increase()
//当页面重建的时候不再重新请求数据，且当前页面数据数据有且没有刷新逻辑的情况下不再请求数据。
if (isRecreate() && mViewModel.firstData.value != null) {
return
}
mViewModel.getData()
}
}

18
module_home/src/main/java/com/quyunshuo/module/home/fragment/InternalRepository.kt Normal file
View File

@ -0,0 +1,18 @@
package com.quyunshuo.module.home.fragment
import com.quyunshuo.androidbaseframemvvm.base.mvvm.m.BaseRepository
import kotlinx.coroutines.delay
import javax.inject.Inject
/**
* @author DBoy 2021/7/6 <p>
* - 文件描述 :
*/
class InternalRepository @Inject constructor() : BaseRepository() {
suspend fun getData() = flowRequest<String> {
delay(1000)
emit("数据加载成功")
}
}

62
module_home/src/main/java/com/quyunshuo/module/home/fragment/InternalViewModel.kt Normal file
View File

@ -0,0 +1,62 @@
package com.quyunshuo.module.home.fragment
import android.util.Log
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.viewModelScope
import com.quyunshuo.androidbaseframemvvm.base.mvvm.vm.BaseViewModel
import dagger.hilt.android.lifecycle.HiltViewModel
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.catch
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.launch
import javax.inject.Inject
/**
* @author DBoy 2021/7/6 <p>
* - 文件描述 :
*/
@HiltViewModel
class InternalViewModel @Inject constructor(private val repository: InternalRepository) : BaseViewModel() {
/**
* 重建计数
*/
val recreatedCont = MutableLiveData<Int>()
/**
* 首个数据
*/
val firstData = MutableLiveData<String>()
/**
* 累加重建次数
*/
fun increase() {
val value = recreatedCont.value ?: 0
recreatedCont.value = value + 1
}
/**
* 获取数据
*/
fun getData() {
isLoading.value = true
viewModelScope.launch(Dispatchers.IO) {
repository.getData()
.catch {
Log.d("DJC", "getData: ")
}.collect {
isLoading.postValue(false)
delay(200)
firstData.postValue(it)
}
}
}
override fun onCleared() {
super.onCleared()
Log.d("DJC","InternalViewModel Clear")
}
}

12
module_home/src/main/res/layout/home_activity_internal_layout.xml Normal file
View File

@ -0,0 +1,12 @@
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.viewpager2.widget.ViewPager2
android:id="@+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

14
module_home/src/main/res/layout/home_activity_main.xml
View File

@ -20,4 +20,18 @@
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
<Button
android:id="@+id/goToNextBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:text="进入ViewPager2示例"
android:textAllCaps="false"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/vTvHello"
tools:ignore="HardcodedText" />
</androidx.constraintlayout.widget.ConstraintLayout>

37
module_home/src/main/res/layout/home_fragment_internal_layout.xml Normal file
View File

@ -0,0 +1,37 @@
<?xml version="1.0" encoding="utf-8"?>
<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical">
<TextView
android:id="@+id/loadingStatusTv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#333"
android:textSize="28sp"
tools:text="Loging" />
<TextView
android:id="@+id/loadDataTv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:textColor="#333"
android:textSize="28sp"
tools:text="数据" />
<TextView
android:id="@+id/recreateContTv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:textColor="#333"
android:textSize="28sp"
tools:text="重建计数" />
</androidx.appcompat.widget.LinearLayoutCompat>