如何在Android Studio中创建第二个Webview。

huangapple
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英文:

How to do a second Webview in Android Studio

问题

  1. public class MainActivity extends AppCompatActivity {
  2.     private WebView webView;
  3.     private WebSettings webSettings;
  4.     private WebView webView2;
  5.     private WebSettings webSettings2;
  7.     @RequiresApi(api = Build.VERSION_CODES.O)
  8.     @Override
  9.     protected void onCreate(Bundle savedInstanceState) {
  10.         super.onCreate(savedInstanceState);
  11.         setContentView(R.layout.activity_main);
  12.         webView = findViewById(R.id.webView);
  13.         webSettings = webView.getSettings();
  14.         webSettings.setJavaScriptEnabled(true);
  15.         webSettings.setLoadWithOverviewMode(true);
  16.         webView.setWebViewClient(new WebViewClient());
  17.         webView.loadUrl("https://google.de");
  18.         webView.clearHistory();
  20.         try {
  21.             Thread.activeCount();
  22.             Thread.sleep(15000); //1000 milliseconds is one second.
  23.             webView2 = findViewById(R.id.webView);
  24.             webSettings2 = webView2.getSettings();
  25.             webSettings2.setJavaScriptEnabled(true);
  26.             webSettings2.setLoadWithOverviewMode(true);
  27.             webView2.loadUrl("https://google.com");
  28.             webView2.clearHistory();
  29.         } catch (InterruptedException e) {
  30.             e.printStackTrace();
  31.         }
  32.     }
  33. }
英文:

inside my Webview App I want to call a second website after a quick pause.

Unfortunately it looks like the pause between the first and the second link dont work...

I dont know why can u give me a tip pls 如何在Android Studio中创建第二个Webview。

  2. public class MainActivity extends AppCompatActivity {
  3.  private WebView webView;
  4.  private WebSettings Websetting;
  5.  private WebView webView2;
  6.  private WebSettings webSettings2;
  8.  @RequiresApi(api = Build.VERSION_CODES.O)
  9.  @Override
  10.  protected void onCreate(Bundle savedInstanceState) {
  11.      super.onCreate(savedInstanceState);
  12.      setContentView(R.layout.activity_main);
  13.      webView = findViewById(R.id.webView);
  14.      Websetting = webView.getSettings();
  15.      Websetting.setJavaScriptEnabled(true);
  16.      Websetting.setLoadWithOverviewMode(true);
  17.      webView.setWebViewClient(new WebViewClient());
  18.      webView.loadUrl("https://google.de");
  19.      webView.clearHistory();
  21.      try {
  22.          Thread.activeCount();
  23.          Thread.sleep(15000); //1000 milliseconds is one second.
  24.          webView2 = findViewById(R.id.webView);
  25.          Websetting = webView2.getSettings();
  26.          Websetting.setJavaScriptEnabled(true);
  27.          Websetting.setLoadWithOverviewMode(true);
  28.          webView2.loadUrl("https://google.com");
  29.          webView2.clearHistory();
  30.      }
  31.      catch (InterruptedException e)
  32.      {
  33.          e.printStackTrace();
  35.      }
  37.  }
  38. }
  40. ´´´
  51. </details>
  54. # 答案1
  55. **得分**: 0
  57. 使用Postdelayed方法尝试：
  59. ```java
  60. public class MainActivity extends AppCompatActivity {
  61. private WebView webView;
  62. private WebSettings Websetting;
  63. private WebView webView2;
  64. private WebSettings webSettings2;
  66. @RequiresApi(api = Build.VERSION_CODES.O)
  67. @Override
  68. protected void onCreate(Bundle savedInstanceState) {
  69.   super.onCreate(savedInstanceState);
  70.   setContentView(R.layout.activity_main);
  71.   webView = findViewById(R.id.webView);
  72.   Websetting = webView.getSettings();
  73.   Websetting.setJavaScriptEnabled(true);
  74.   Websetting.setLoadWithOverviewMode(true);
  75.   webView.setWebViewClient(new WebViewClient());
  76.   webView.loadUrl("https://google.de");
  77.   webView.clearHistory();
  80.       new Handler().postDelayed(new Runnable() {
  83.          @Override
  84.          public void run() {
  85.              webView2 = findViewById(R.id.webView);
  86.              Websetting = webView2.getSettings();
  87.              Websetting.setJavaScriptEnabled(true);
  88.              Websetting.setLoadWithOverviewMode(true);
  89.              webView2.loadUrl("https://google.com");
  90.              webView2.clearHistory();
  91.          }
  92.      }, 15000);
  93.   }
  96. }
  97. }
英文:

Try using Postdelayed method :

  1. public class MainActivity extends AppCompatActivity {
  2.  private WebView webView;
  3.  private WebSettings Websetting;
  4.  private WebView webView2;
  5.  private WebSettings webSettings2;
  7.  @RequiresApi(api = Build.VERSION_CODES.O)
  8.  @Override
  9.  protected void onCreate(Bundle savedInstanceState) {
  10.      super.onCreate(savedInstanceState);
  11.      setContentView(R.layout.activity_main);
  12.      webView = findViewById(R.id.webView);
  13.      Websetting = webView.getSettings();
  14.      Websetting.setJavaScriptEnabled(true);
  15.      Websetting.setLoadWithOverviewMode(true);
  16.      webView.setWebViewClient(new WebViewClient());
  17.      webView.loadUrl(&quot;https://google.de&quot;);
  18.      webView.clearHistory();
  20.     
  21.          new Handler().postDelayed(new Runnable() {
  24.             @Override
  25.             public void run() {
  26.                 webView2 = findViewById(R.id.webView);
  27.                 Websetting = webView2.getSettings();
  28.                 Websetting.setJavaScriptEnabled(true);
  29.                 Websetting.setLoadWithOverviewMode(true);
  30.                 webView2.loadUrl(&quot;https://google.com&quot;);
  31.                 webView2.clearHistory();
  32.             }
  33.         }, 15000);
  34.      }
  35.     
  37.  }
  38. }

答案2

得分: 0

你需要在运行大括号内更改以下代码：

  1. webView2 = findViewById(R.id.webView2);
英文:

You need to change the following code within the run braces

  1. webView2 = findViewById(R.id.webView2);

huangapple
  • 本文由 发表于 2020年10月15日 19:11:08
  • 转载请务必保留本文链接：https://go.coder-hub.com/64370294.html
  • android
  • java
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