Cordova Android：没有js当在应用程序启动时显示自定义webview [英] Cordova Android: no js when displaying a custom webview on app start
问题描述
我想知道为什么我的JavaScript不会在我的WebView中执行。
I would like to know why my JavaScript won't execute in the my WebView.
在我的应用程序中，我显示一个自定义webview通过覆盖 MainActivity 的 onCreate 来查看应用程序。
In my app, I am displaying a custom webview on top of the main view on app start by overriding MainActivity's onCreate. The webview is filled with HTML and Javascript from a file.
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Display display = getWindowManager().getDefaultDisplay();
// The next line creates webview with the content from my html file that contains javascript.
WebView loadingScreen = Loading.createLoadingScreen(this, getLoadingHTMLPath(), appView);
LayoutParams layoutParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
loadingScreen.setLayoutParams(layoutParams);
loadingScreen.setMinimumHeight(display.getHeight());
loadingScreen.setMinimumWidth(display.getWidth());
Dialog loadingDialog = new Dialog(this, android.R.style.Theme_Translucent_NoTitleBar);
loadingDialog.setContentView(loadingScreen);
loadingDialog.setCancelable(false);
loadingDialog.show();
这会成功显示我的WebView，但是没有执行JavaScript。 （HTML文件在< body> 后包含< script> 标记）我很困惑，方法在iOS和它的工作。
This successfully displays my WebView, but no JavaScript in it is executed. (The HTML file contains <script> tag after <body>) I am confused because I have taken similar approach in iOS and it worked.
我的着墨是我不能在 onCreate ，但我不知道。
My inkling is that I am not able to execute JavaScript in the onCreate stage, but I am not sure. Any suggestions as to why this happens and possible solutions?
推荐答案
问题是我不得不使用 WebSettings＃setJavaScriptEnabled 以启用JavaScript执行。
The problem was that I had to use WebSettings#setJavaScriptEnabled to enable JavaScript execution.
默认情况下，设置 setJavaScriptEnabled 到 false 。这是为什么我的JavaScript没有运行。
By default, the setJavaScriptEnabled is set to false. That was why my JavaScript was not running.
在我的例子中，我不得不添加：
In my case, I had to add:
loadingScreen.getSettings().setJavaScriptEnabled(true);
这篇关于Cordova Android：没有js当在应用程序启动时显示自定义webview的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
