android 应用程序在 webview url 更改时崩溃

Question

类似于此question ，但解决方案不适用于 mycase。

Android 应用在运行函数 webview.loadUrl 时崩溃
关闭时出现以下错误:

E/AndroidRuntime(1593): Caused by: java.lang.Throwable: Warning: A WebView method was called on thread 'WebViewCoreThread'. All WebView methods must be called on the UI thread. Future versions of WebView may not support use on other threads.

编辑:现在尝试在 runOnUiThread(new Runnable(){ }) 中运行该函数，但出现错误并且无法在上下文中输入 runOnUiThread 的位置。
完整代码如下:

   public class MyJavaScriptInterface {  
         @JavascriptInterface 
             public void androidFieldPrompt(String title, String msg, final String funct) {  
                 final EditText input = new EditText(MainActivity.this);  
                 AlertDialog.Builder alert = new AlertDialog.Builder(MainActivity.this);                 
                 alert.setTitle(title);  
                 alert.setMessage(msg);  
                 alert.setView(input);
                 alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {    
                    public void onClick(DialogInterface dialog, int whichButton) {  
                        String value = input.getText().toString();  

                        // ERROR IS BEING THROWN HERE
                        webView.loadUrl("javascript:window."+funct+"('"+value+"')"); 

                        return;                  
                       }  
                    });  
                alert.show();        
             }
   }

Answer 1

E/AndroidRuntime(1593): Caused by: java.lang.Throwable: Warning: A WebView method was called on thread 'WebViewCoreThread'. All WebView methods must be called on the UI thread. Future versions of WebView may not support use on other threads.

正如错误指出的那样......您正在非 UI 线程上调用 webview 方法(在点击监听器内)。

你应该使用runOnUiThread在 onClick 内部调用 Web View 方法时使用主线程

  MainActivity.this.runOnUiThread(new Runnable(){
       @Override
        public void run() {
           String value = input.getText().toString();
           webView.loadUrl("javascript:window."+funct+"('"+value+"')");
           return;
        }
 });