view.lifecycle 实现方式替换

Author: Goooler

base/src/main/kotlin/io/goooler/demoapp/base/util/BaseExtensions.kt

@@ -22,7 +22,6 @@ import androidx.annotation.ColorInt
 import androidx.annotation.IdRes
 import androidx.annotation.LayoutRes
 import androidx.annotation.MainThread
-import androidx.appcompat.app.AppCompatActivity
 import androidx.core.os.bundleOf
 import androidx.core.text.parseAsHtml
 import androidx.core.text.toSpannable
@@ -36,10 +35,8 @@ import androidx.fragment.app.commit
 import androidx.fragment.app.findFragment
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleCoroutineScope
-import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
-import androidx.lifecycle.ViewTreeLifecycleOwner
 import androidx.lifecycle.coroutineScope
 import androidx.lifecycle.findViewTreeLifecycleOwner
 import kotlinx.coroutines.CoroutineScope
@@ -419,17 +416,7 @@ inline val View.attachedActivity: Activity?
     return baseContext as? Activity
   }
 
-/**
- * 这里不使用 [findViewTreeLifecycleOwner] 方法是因为 [AppCompatActivity] 中没有实现
- * [ViewTreeLifecycleOwner.set] 方法，在 activity 中的 view 会获取不到 [LifecycleOwner]
- *
- * todo 等升级 AppCompat 1.3.0 之后使用 [findViewTreeLifecycleOwner] 代替内部实现
- */
-inline val View.lifecycle: Lifecycle?
-  get() {
-    return attachedFragment?.viewLifecycleOwner?.lifecycle
-      ?: (attachedActivity as? FragmentActivity)?.lifecycle
-  }
+inline val View.lifecycle: Lifecycle? get() = findViewTreeLifecycleOwner()?.lifecycle
 
 inline val View.lifecycleScope: LifecycleCoroutineScope? get() = lifecycle?.coroutineScope
 

web/src/main/kotlin/io/goooler/demoapp/web/CompatWebView.kt

@@ -1,8 +1,6 @@
 package io.goooler.demoapp.web
 
-import android.app.Activity
 import android.content.Context
-import android.content.ContextWrapper
 import android.net.Uri
 import android.net.http.SslError
 import android.util.AttributeSet
@@ -14,9 +12,6 @@ import android.webkit.WebChromeClient
 import android.webkit.WebSettings
 import android.webkit.WebView
 import androidx.annotation.IntRange
-import androidx.fragment.app.Fragment
-import androidx.fragment.app.FragmentActivity
-import androidx.fragment.app.findFragment
 import androidx.lifecycle.DefaultLifecycleObserver
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.findViewTreeLifecycleOwner
@@ -41,7 +36,7 @@ open class CompatWebView(context: Context, attrs: AttributeSet? = null) : WebVie
 
   override fun onAttachedToWindow() {
     super.onAttachedToWindow()
-    attachToLifecycle()
+    findViewTreeLifecycleOwner()?.lifecycle?.addObserver(lifecycleObserver)
   }
 
   private fun initWebViewSettings() {
@@ -109,27 +104,6 @@ open class CompatWebView(context: Context, attrs: AttributeSet? = null) : WebVie
     }
   }
 
-  /**
-   * todo 等升级 AppCompat 1.3.0 之后使用 [findViewTreeLifecycleOwner] 代替内部实现
-   */
-  private fun attachToLifecycle() {
-    val fragment: Fragment? = try {
-      findFragment()
-    } catch (_: Exception) {
-      null
-    }
-    if (fragment != null) {
-      fragment.viewLifecycleOwner.lifecycle.addObserver(lifecycleObserver)
-    } else {
-      var baseContext: Context? = context
-      while (baseContext is ContextWrapper) {
-        if (baseContext is Activity) break
-        baseContext = baseContext.baseContext
-      }
-      (baseContext as? FragmentActivity)?.lifecycle?.addObserver(lifecycleObserver)
-    }
-  }
-
   private val lifecycleObserver = object : DefaultLifecycleObserver {
     override fun onResume(owner: LifecycleOwner) {
       onResume()