android - 如何在 Android 8 中链接 html 页面

Question

我有一些在线帮助，其中包含几个相互链接的 HTML。

这在过去工作得很好，但在 Android 8 中只能显示入口页面，只要我点击任何链接，我就会得到:

10-08 09:04:17.616 22871 22871 E AndroidRuntime: FATAL EXCEPTION: main
10-08 09:04:17.616 22871 22871 E AndroidRuntime: Process: net.sourceforge.uiq3.fx602p, PID: 22871
10-08 09:04:17.616 22871 22871 E AndroidRuntime: android.os.FileUriExposedException: file:///android_asset/Modes.html exposed beyond app through Intent.getData()
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.os.StrictMode.onFileUriExposed(StrictMode.java:1958)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.net.Uri.checkFileUriExposed(Uri.java:2356)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.content.Intent.prepareToLeaveProcess(Intent.java:10511)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.content.Intent.prepareToLeaveProcess(Intent.java:10465)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1616)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.app.Activity.startActivityForResult(Activity.java:4564)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.app.Activity.startActivityForResult(Activity.java:4522)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:784)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.app.Activity.startActivity(Activity.java:4883)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.app.Activity.startActivity(Activity.java:4851)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.content.ContextWrapper.startActivity(ContextWrapper.java:377)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at aiM.startActivity(SourceFile:22)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at agA.a(SourceFile:34)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at org.chromium.android_webview.AwContentsClientBridge.shouldOverrideUrlLoading(SourceFile:173)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.os.MessageQueue.nativePollOnce(Native Method)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.os.MessageQueue.next(MessageQueue.java:325)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.os.Looper.loop(Looper.java:142)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at android.app.ActivityThread.main(ActivityThread.java:6944)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at java.lang.reflect.Method.invoke(Native Method)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
10-08 09:04:17.616 22871 22871 E AndroidRuntime:    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)

当然，所有页面都显示在应用程序内部，没有任何内容“泄露”到外部。即使:这只是在线帮助，也不会在意。

够了咆哮:如何解决这个问题？

更新 1:

该页面仅包含一个简单的布局和一个几乎为空的 Activity :

<LinearLayout
  android:layout_height='match_parent'
  android:layout_width='match_parent'
  xmlns:android='http://schemas.android.com/apk/res/android'
>
  <WebView
    android:id='@+id/Help'
    android:layout_height='match_parent'
    android:layout_width='match_parent'
  ></WebView>
</LinearLayout>

@igor_rb 建议重载 shouldOverrideUrlLoading WebViewClient — 但目前我实际上并没有使用 WebViewClient。

Answer 1

您可以尝试覆盖 shouldOverrideUrlLoading 方法，more info .

Give the host application a chance to take control when a URL is about to be loaded in the current WebView. If a WebViewClient is not provided, by default WebView will ask Activity Manager to choose the proper handler for the URL. If a WebViewClient is provided, returning true causes the current WebView to abort loading the URL, while returning false causes the WebView to continue loading the URL as usual.

例如，您可以尝试简单地从他那里返回 false:

  WebViewClient client = new WebViewClient() {
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        return false;
    }
};