Öffnen einer Website in Webview in einem anderen Fragment mit einer Schaltfläche

Question

Ich habe 2 Schaltflächen in verschiedenen Fragment1 und ein anderes Webview in Fragment 2. Ich möchte 2 verschiedene Websites im Webview öffnen, wenn ich auf die Schaltflächen klicke. Bitte legen nahe,

Answer 1

Bitte versuchen, diese -

public class MainHomeActivity extends AppCompatActivity implements View.OnClickListener { 

    private Button btn_first, btn_second; 
    @Override 
    protected void onCreate(@Nullable Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main_home); 

     btn_first= (Button)findViewById(R.id.btn_first); 
     btn_second= (Button)findViewById(R.id.btn_second); 
     btn_second.setOnClickListener(this); 
     btn_first.setOnClickListener(this); 
    } 

    private void loadFragment(String url) { 
     WebViewFragment webViewFragment = new WebViewFragment(); 
     Bundle b = new Bundle(); 
     b.putString("url", url); 
     webViewFragment.setArguments(b); 

     FragmentManager fragmentManager = getSupportFragmentManager(); 
     FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 
     fragmentTransaction.add(R.id.fragment_layout, webViewFragment); 
     fragmentTransaction.commit(); 
    } 


    @Override 
    public void onClick(View view) { 
     switch (view.getId()) { 
      case R.id.btn_first: 
       loadFragment("http://www.google.com"); 
       break; 
      case R.id.btn_second: 
       loadFragment("http://www.apple.com"); 
       break; 
     } 

    } 
} 

/activity_main_home.xml/

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"> 


    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:id="@+id/topPanel" 
     android:orientation="horizontal"> 

     <Button 
      android:id="@+id/btn_first" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="first"/> 

     <Button 
      android:id="@+id/btn_second" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="second"/> 
    </LinearLayout> 

    <FrameLayout 
     android:id="@+id/fragment_layout" 
     android:layout_below="@+id/topPanel" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 


    </FrameLayout> 


</RelativeLayout> 

//WebViewFragment.java

public class WebViewFragment extends Fragment { 

    private View view; 
    private WebView webview; 
    ProgressBar webViewPbar; 
    private String url ; 


    @Override 
    public void onCreate(@Nullable Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     Bundle bundle = getArguments(); 
     url = bundle.getString("url"); 
    } 

    @Nullable 
    @Override 
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { 
     view = inflater.inflate(R.layout.activity_main, container, false); 
     initUI(); 
     return view; 

    } 

    private void initUI() { 
     webViewPbar = (ProgressBar) view.findViewById(R.id.webViewPbar); 

     webview = (WebView) view.findViewById(R.id.webview); 
     WebSettings settings = webview.getSettings(); 
     settings.setJavaScriptEnabled(true); 
     webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY); 

     webview.setWebChromeClient(new WebChromeClient() { 
      @Override 
      public void onProgressChanged(WebView view, int newProgress) { 
       super.onProgressChanged(view, newProgress); 

       webViewPbar.setProgress(newProgress); 
       if (newProgress == 100) { 
        webViewPbar.setVisibility(View.GONE); 
       } 
      } 
     }); 

     webview.setWebViewClient(new WebViewClient() { 

      public boolean shouldOverrideUrlLoading(WebView view, String url) { 
       view.loadUrl(url); 
       return true; 
      } 

      public void onPageFinished(WebView view, String url) { 
       if (webViewPbar != null) { 
        webViewPbar.setVisibility(View.GONE); 
       } 
      } 

      public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { 
       if (webViewPbar != null) { 
        webViewPbar.setVisibility(View.GONE); 
       } 
      } 
     }); 

//  webview.loadUrl("http://www.google.com"); 
     webview.loadUrl(url); 

    } 
} 

//activity_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"> 

    <ProgressBar 
     android:id="@+id/webViewPbar" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:max="100" 
     style="@android:style/Widget.Holo.Light.ProgressBar.Horizontal" /> 

    <WebView android:id="@+id/webview" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" /> 


</LinearLayout> 

/AndroidManifest Datei/

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.shajib.capturemirror"> 

    <uses-permission android:name="android.permission.INTERNET" /> 

    <application 
     android:allowBackup="true" 
     android:icon="@mipmap/ic_launcher" 
     android:label="@string/app_name" 
     android:supportsRtl="true" 
     android:theme="@style/AppTheme" 
     > 
     <activity android:name=".MainHomeActivity"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 
       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
    </application> 

</manifest>