如何禁用WebView中的链接,页面和引用?

时间:2018-05-15 15:57:37

标签: java android class webview

我在Android中有一个Web视图,我在其中打开一个html网页。但它充满了链接和图像,当我点击其中一个时,它会加载到我的网页视图中。所以我想禁用此行为,因此如果我点击链接,请不要加载它。我已经尝试过这个解决方案并为自己编辑了一下,但没有奏效。 请给我一个完整代码的解决方案。我是Java和Android的新手。

我的完整代码:

public class MainActivity extends AppCompatActivity {

    ProgressBar progressBar;
    WebView webView;
    String url="http://example.com";
    TextView textView;
    //to hide progressbar after loading part 1
    LinearLayout liProgressContainer;
    private String currentUrl;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        progressBar = (ProgressBar) findViewById(R.id.progressBar);
        webView = (WebView) findViewById(R.id.webView);
        textView = (TextView) findViewById(R.id.tvLoadingPercentage);
        //to hide progressbar after loading part 2
        liProgressContainer = (LinearLayout) findViewById(R.id.liProgressContainer);
        webView.setWebChromeClient(new WebChromeClient() {
            public void onProgressChanged(WebView view, int progress) {

                progressBar.setProgress(progress);
                textView.setText(progress + " %");
            }
        });
        webView.setWebViewClient(new MyWebViewClient());
        WebSettings browserSetting = webView.getSettings();
        browserSetting.setJavaScriptEnabled(true);
        webView.loadUrl(url);


    }

    //back button function
    @Override
    public void onBackPressed() {
        if (webView.canGoBack()) {
            webView.goBack();
        } else {
            super.onBackPressed();
        }
    }


    private class MyWebViewClient extends WebViewClient {


        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            liProgressContainer.setVisibility(View.VISIBLE);
            super.onPageStarted(view, url, favicon);
        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            //progressBar.setVisibility(View.VISIBLE);
            view.loadUrl(url);
            return true;
            //return super.shouldOverrideUrlLoading(view, url);
        }

        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            liProgressContainer.setVisibility(View.GONE);

            //hide header part
        }

    }

}

1 个答案:

答案 0 :(得分:0)

您需要在MyWebViewClient类中配置shouldOverrideUrlLoading方法,以便仅在符合所需URL的URL时加载该URL。在MyWebViewClient类中添加一个字段以存储URL并添加单个arg构造函数。

private String desiredUrl;

public MyWebViewClient(String url) {
    this.desiredUrl = url;
}

在您的shouldOverrideUrlLoading方法中,检查提供的URL是否等于您的URL实例变量。

@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
    if (desiredUrl.equals(url))
        view.loadUrl(url);
    return true;
}

设置Web视图客户端时,请传递您的URL参数,例如

webView.setWebViewClient(new MyWebViewClient(url));