在 webview 中单击 div 时如何完成活动

Question

I want to close an activity if a <div class="close" id="closer">close</div> is clicked

<WebView
    android:id="@+id/webview"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:ignore="MissingConstraints"
    tools:layout_editor_absoluteX="8dp"
    tools:layout_editor_absoluteY="8dp" />

Answer 1

You have to add a javascript interface to your WebView.

wv.addJavascriptInterface(this, "MyInterface");

Make sure you have enabled javascript:

wv.getSettings().setJavaScriptEnabled(true);

Now in your activity create a function annotated with @JavascriptInterface that will finish the activity.

@JavascriptInterface
pubic void closeActivity(){
 finish()
}

Now modify your HTML to call the above function:

<div class="close" id="closer" onclick="MyInterface.closeActivity()">close</div>