我有以下代码:的WebView膨胀太慢
public View onCreateView(LayoutInflater _inflater, ViewGroup _group, Bundle _savedInstanceState) {
Log.w(getClass().getName(), "start");
View view = _inflater.inflate(R.layout.myLayout, _group, false);
Log.w(getClass().getName(), "stop");
return view;
}
案例1:
//myLayout.xml
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</FrameLayout>
11:50:36.370 onCreateView:启动
11:50:36.410 onCreateView :停止
执行时间:40ms
然后我添加的WebView,不碰任何其他代码
案例2:
//myLayout.xml
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<WebView
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</FrameLayout>
11:51:16.645 onCreateView:启动
11:51:16.985 onCreateView :停止
执行时间:340ms
正如你所见,巨大的差异,我看到我的界面在第二种情况下滞后。
1)这是一个预期的行为?
2)如果是这样,我怎么能摆脱我的UI中的滞后?
预先感谢
编辑:
完整的日志第二种情况:
11:51:16.645 onCreateView: start
11:51:16.710 I/WebViewFactory: Loading com.google.android.webview version 51.0.2704.81 (code 270408100)
11:51:16.740 W/art: Suspending all threads took: 11.333ms
11:51:16.755 I/cr_LibraryLoader: Time to load native libraries: 2 ms (timestamps 5137-5139)
11:51:16.755 I/cr_LibraryLoader: Expected native library version number "51.0.2704.81", actual native library version number "51.0.2704.81"
11:51:16.765 V/WebViewChromiumFactoryProvider: Binding Chromium to main looper Looper (main, tid 1) {1d66229a}
11:51:16.765 I/cr_LibraryLoader: Expected native library version number "51.0.2704.81", actual native library version number "51.0.2704.81"
11:51:16.765 I/chromium: [INFO:library_loader_hooks.cc(143)] Chromium logging enabled: level = 0, default verbosity = 0
11:51:16.795 I/cr_BrowserStartup: Initializing chromium process, singleProcess=true
11:51:16.805 E/ApkAssets: Error while loading asset assets/natives_blob_64.bin: java.io.FileNotFoundException: assets/natives_blob_64.bin
11:51:16.805 E/ApkAssets: Error while loading asset assets/snapshot_blob_64.bin: java.io.FileNotFoundException: assets/snapshot_blob_64.bin
11:51:16.870 W/cr_media: Requires BLUETOOTH permission
11:51:16.885 I/art: Rejecting re-init on previously-failed class java.lang.Class<com.android.webview.chromium.WebViewContentsClientAdapter$WebResourceErrorImpl>
11:51:16.885 I/art: Rejecting re-init on previously-failed class java.lang.Class<com.android.webview.chromium.WebViewContentsClientAdapter$WebResourceErrorImpl>
11:51:16.920 D/ConnectivityManager.CallbackHandler: CM callback handler got msg 524290
11:51:16.935 11557-11588/? W/FlurryAgent: Flurry session ended
11:51:16.945 I/art: Rejecting re-init on previously-failed class java.lang.Class<org.chromium.content.browser.FloatingWebActionModeCallback>
11:51:16.945 I/art: Rejecting re-init on previously-failed class java.lang.Class<org.chromium.content.browser.FloatingWebActionModeCallback>
11:51:16.970 D/cr_Ime: [InputMethodManagerWrapper.java:30] Constructor
11:51:16.980 W/cr_AwContents: onDetachedFromWindow called when already detached. Ignoring
11:51:16.980 D/cr_Ime: [InputMethodManagerWrapper.java:59] isActive: false
11:51:16.985 onCreateView: stop
它似乎正在加载网页 –
尝试加载www.google.com在您的webview并验证加载的时间。如果加载速度更快,那么另一个URL可能很慢 – Stallion
@JoeRichard请参阅日志,它看起来像在做某种浏览器初始化,但我没有更改代码,也没有在任何地方调用WebView.loadUrl() –