＆QUOT;装载＆QUOT;消息时启动Android应用程序不消失 [英] "loading" message when starting Android app doesn't disappear

问题描述

我想，当我的Andr​​oid显示正在加载...消息。
我设法与下面的code要做到这一点，但问题是，它一直显示正在加载...消息，即使已经被加载页面。当我点击背景消失，但它绝对不是我脑子里想用这个code时。

所以，我想要做的是显示了整整3秒的加载信息的东西。

谁能帮我这个吗？

 公共无效onLoadResource（的WebView视图，字符串URL）{
            如果（progressDialog == NULL）{
                //在标准情况下YourActivity.this
                progressDialog =新ProgressDialog（MainActivity.this）;
                progressDialog.setMessage（正在加载...）;
                progressDialog.show（）;
            }
        }
        公共无效onPageFinished（的WebView视图，字符串URL）{
            尝试{
            如果（progressDialog.isShowing（））{
                progressDialog.dismiss（）;
                progressDialog = NULL;
            }
            }赶上（例外的例外）{
                exception.printStackTrace（）;
            }
        }
 

解决方案

试试这个方法：

  webView.setWebChromeClient（新WebChromeClient（）{
   公共无效onProgressChanged（的WebView观点，诠释进度）{
       如果（progressDialog == NULL）{
           progressDialog =新ProgressDialog（MainActivity.this）;
           progressDialog.setMessage（正在加载...）;
           progressDialog.show（）;
       }       如果（进度== 100安培;＆安培; progressDialog.isShowing（））{
           progressDialog.dismiss（）;
           progressDialog = NULL;
       }
    }
 }）;
 

I would like to show a "loading..." message when my Android . I managed to do this with the code below, but the problem is that it keeps displaying the "Loading..." message, even when the page is already loaded. It disappears when I click on the background, but it's definitely not what I had in mind when using this code.

So what I would like to do is showing a loading message for exactly 3 seconds.

Can anyone help me out with this one?

public void onLoadResource (WebView view, String url) {
            if (progressDialog == null) {
                // in standard case YourActivity.this
                progressDialog = new ProgressDialog(MainActivity.this);
                progressDialog.setMessage("Loading...");
                progressDialog.show();
            }
        }
        public void onPageFinished(WebView view, String url) {
            try{
            if (progressDialog.isShowing()) {
                progressDialog.dismiss();
                progressDialog = null;
            }
            }catch(Exception exception){
                exception.printStackTrace();
            }
        }

解决方案

Try this way :

webView.setWebChromeClient(new WebChromeClient() {
   public void onProgressChanged(WebView view, int progress) {
       if (progressDialog == null) {
           progressDialog = new ProgressDialog(MainActivity.this);
           progressDialog.setMessage("Loading...");
           progressDialog.show();
       }

       if(progress==100 && progressDialog.isShowing()){
           progressDialog.dismiss();
           progressDialog = null;
       }
    }
 });

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