Question

我想在webview下的网站中使用tel：links，但是当我点击它时，我收到以下错误消息：ERR_UNKNOWN_URL_SCHEME。

我不知道问题是什么，一切正常，除了这个特殊的链接。

这是我的MainActivity.java：

import android.content.Intent;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Window;
import android.view.WindowManager;
import android.webkit.URLUtil;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MainActivity extends AppCompatActivity {

    private WebView webView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

        setContentView(R.layout.activity_main);

        webView = (WebView) findViewById(R.id.webView);
        WebSettings webSettings = webView.getSettings();
        webSettings.setJavaScriptEnabled(true);
        webSettings.setRenderPriority(WebSettings.RenderPriority.HIGH);
        webView.loadUrl("http://mywebsite.com");
        webView.setWebViewClient(new WebViewClient());
    }

    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        if( URLUtil.isNetworkUrl(url) ) {
            return false;
        }

        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
        startActivity( intent );
        return true;
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (event.getAction() == KeyEvent.ACTION_DOWN) {
            switch (keyCode) {
                case KeyEvent.KEYCODE_BACK:
                    if (webView.canGoBack()) {
                        webView.goBack();
                    } else {
                        finish();
                    }
                case KeyEvent.KEYCODE_MENU:
                    webView.loadUrl("javascript:open_menu()");
                return true;
            }

        }
        return super.onKeyDown(keyCode, event);
    }


}

Answer 1

最后我解决了这个问题！

这是一个很好的代码：

import android.content.Intent;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Window;
import android.view.WindowManager;
import android.webkit.URLUtil;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MainActivity extends AppCompatActivity {

private WebView webView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.activity_main);

    webView = (WebView) findViewById(R.id.webView);
    WebSettings webSettings = webView.getSettings();
    webSettings.setJavaScriptEnabled(true);
    webSettings.setRenderPriority(WebSettings.RenderPriority.HIGH);
    webView.loadUrl("http://www.mywebpage.com");
    webView.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if( URLUtil.isNetworkUrl(url) ) {
                return false;
            }

            Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
            startActivity( intent );
            return true;
        }

    });
}

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (event.getAction() == KeyEvent.ACTION_DOWN) {
        switch (keyCode) {
            case KeyEvent.KEYCODE_BACK:
                if (webView.canGoBack()) {
                    webView.goBack();
                } else {
                    finish();
                }
            case KeyEvent.KEYCODE_MENU:
                webView.loadUrl("javascript:open_menu()");
            return true;
        }

    }
    return super.onKeyDown(keyCode, event);
}


}

Answer 2

Err_Unknown_URL_Scheme Android WebView problem solved

这对我有用。他们的HTML网页还处理tel，sms，mailto和geo。

public class MainActivity extends AppCompatActivity {WebView webview;

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

    webview=(WebView)findViewById(R.id.webview);
    webview.setWebViewClient(new MyWebViewClient());

    webview.loadUrl("file:///android_asset/demo.html");

    }


    class MyWebViewClient extends WebViewClient
    {

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String  url)
        {

            if( URLUtil.isNetworkUrl(url) )
            {
                return false;
            }
            try {
                Intent intent = new Intent(Intent.ACTION_VIEW);
                intent.setData(Uri.parse(url));
                startActivity(intent);

            }catch(ActivityNotFoundException e)
            {
                Log.e("AndroiRide",e.toString());
                Toast.makeText(MainActivity.this,"No activity found",Toast.LENGTH_LONG).show();
            }

            return true;
        }

        @RequiresApi(Build.VERSION_CODES.N)
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request)
        {
            String url=request.getUrl().toString();
            if( URLUtil.isNetworkUrl(url) )
            {
                return false;
            }
            try {
                Intent intent = new Intent(Intent.ACTION_VIEW);
                intent.setData(Uri.parse(url));
                startActivity(intent);

            }catch(ActivityNotFoundException e)
            {
                Log.e("AndroiRide",e.toString());
                Toast.makeText(MainActivity.this,"No activity found",Toast.LENGTH_LONG).show();
            }

            return true;
        }
    }

}

Android Webview tel：链接ERR_UNKNOWN_URL_SCHEME

2 个答案: