我在服务中加载了一个Webview，该Webview有助于监视网页，但是onPageFinished方法绝不是我拥有javascript标签的地方。
quantity我试图在onPageFinished方法内部进行烤面包，并注释所有windowsmanager参数，但是该烤面包没有出现，而出现在public class ServiceWithWebView extends Service {
@Override
public void onCreate() {
super.onCreate();
WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
params = new WindowManager.LayoutParams(WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE, PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 0;
params.width = 0;
params.height = 0;
LinearLayout view = new LinearLayout(this);
view.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT));
WebView wv = new WebView(this);
wv.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
view.addView(wv);
wv.getSettings().setJavaScriptEnabled(true);
wv.addJavascriptInterface(new MyJavaScriptInterface(this), "HtmlViewer");
wv.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url) {
wv.loadUrl("javascript:window.HtmlViewer.showHTML" +
"('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');");
}
});
wv.loadUrl("https://stackoverflow.com");
windowManager.addView(view, params);
}
class MyJavaScriptInterface {
private Context ctx;
MyJavaScriptInterface(Context ctx) {
this.ctx = ctx;
}
public void showHTML(String html) {
new AlertDialog.Builder(ctx).setTitle("HTML").setMessage(html)
.setPositiveButton(android.R.string.ok, null).setCancelable(false).create().show();
}
}
}
方法之外。
如何解决这个问题？