Question

创建了一个Android应用程序，我在其中通过webview加载了一个网站。我已经使我的启动画面加载了5秒并且在其间放置了进度条，以便调整网站加载所花费的时间。

现在我需要显示启动画面，直到页面加载完毕并决定删除进度条页面。我正在使用以下代码。

public class Splashscreen extends Activity {

// Set Duration of the Splash Screen
long Delay = 5000;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // Remove the Title Bar
    requestWindowFeature(Window.FEATURE_NO_TITLE);

    // Get the view from splash_activity.xml
    setContentView(R.layout.splash);

    // Create a Timer
    Timer RunSplash = new Timer();

    // Task to do when the timer ends
    TimerTask ShowSplash = new TimerTask() {
        @Override
        public void run() {
            // Close SplashScreenActivity.class
            finish();

            // Start MainActivity.class
            Intent myIntent = new Intent(Splashscreen.this,
                    MainActivity.class);
            startActivity(myIntent);
        }
    };

    // Start the timer
    RunSplash.schedule(ShowSplash, Delay);
}
}

我应该在哪里进行更改？

Answer 1

当您在import SOAPpy wsdlFile = 'https://10.10.10.10/services/fwif?wsdl' proxy = SOAPpy.WSDL.Proxy(wsdlFile) Traceback (most recent call last): File "run.py", line 28, in <module> proxy = SOAPpy.WSDL.Proxy(wsdlFile) File "/home/dinn/miniconda/envs/soaptest/lib/python2.7/site-packages/SOAPpy/WSDL.py", line 83, in __init__ self.wsdl = reader.loadFromString(str(wsdlsource)) File "/home/dinn/miniconda/envs/soaptest/lib/python2.7/site-packages/wstools/WSDLTools.py", line 49, in loadFromString return self.loadFromStream(StringIO(data)) File "/home/dinn/miniconda/envs/soaptest/lib/python2.7/site-packages/wstools/WSDLTools.py", line 28, in loadFromStream document = DOM.loadDocument(stream) File "/home/dinn/miniconda/envs/soaptest/lib/python2.7/site-packages/wstools/Utility.py", line 645, in loadDocument return xml.dom.minidom.parse(data) File "/home/dinn/miniconda/envs/soaptest/lib/python2.7/xml/dom/minidom.py", line 1918, in parse return expatbuilder.parse(file) File "/home/dinn/miniconda/envs/soaptest/lib/python2.7/xml/dom/expatbuilder.py", line 928, in parse result = builder.parseFile(file) File "/home/dinn/miniconda/envs/soaptest/lib/python2.7/xml/dom/expatbuilder.py", line 207, in parseFile parser.Parse(buffer, 0) xml.parsers.expat.ExpatError: not well-formed (invalid token): line 1, column 6时，无法从其他WebView加载Activity。您需要加载Splashscreen并将启动画面覆盖在MainActivity上。

Answer 2

您必须在同一活动中制作启动画面和Web视图。要知道页面何时完成加载，您可以将此方法与您的webview一起使用。

 webview.setWebViewClient(new WebViewClient() {
   @Override
   public void onPageFinished(WebView view, String url) {

    }
});

在onPageFinished（）方法中，您可以关闭进度条

Answer 3

请查看此链接，了解如何在 webview 加载页面之前显示进度条
https://medium.com/android-news/loading-splash-screen-for-webview-in-android-studio-ef68ec05720a。

加载启动画面直到加载webview

3 个答案: