Question

**请参见下面的问题**以解决问题**

确定一切正常，除了加载网址，当它尝试将网址加载到网页视图中时，它会在超链接前面添加网址：例如：url：http://google.com并且webview当然不会加载它。我试过.replace（＆＃34; url：＆＃34;，＆＃34;＆＃34;）和.replaceAll（＆＃34; url：＆＃34;，＆＃34;＆＃34;）没有成功。使用zbar条形码库生成SCAN_RESULT。

主要活动

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case ZBAR_SCANNER_REQUEST:
        case ZBAR_QR_SCANNER_REQUEST:
            if (resultCode == RESULT_OK) {

                String value = data.getStringExtra(ZBarConstants.SCAN_RESULT);
                String newValue = value.replaceAll("url:", "");

                Intent intent = new Intent(getApplicationContext(), WebViewActivity.class);
                intent.putExtra("mUrl",newValue);
                startActivity(intent);

                //Toast.makeText(this, "Scan Result = " + data.getStringExtra(ZBarConstants.SCAN_RESULT), Toast.LENGTH_LONG).show();
            } else if(resultCode == RESULT_CANCELED && data != null) {
                String error = data.getStringExtra(ZBarConstants.ERROR_INFO);
                if(!TextUtils.isEmpty(error)) {
                    Toast.makeText(this, error, Toast.LENGTH_SHORT).show();
                }
            }
            break;
    }
}

Webview活动

public class WebViewActivity extends Activity {

private WebView mWebView;

@SuppressLint("SetJavaScriptEnabled")
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    String mUrl = getIntent().getStringExtra("mUrl");
    //String newMUrl = mUrl.replaceAll("url:", "");

    mWebView = (WebView) findViewById(R.id.activity_main_webview);
    WebSettings webSettings = mWebView.getSettings();
    webSettings.setJavaScriptEnabled(true);
    mWebView.loadUrl(mUrl);
    mWebView.setWebViewClient(new WebViewClient());
    mWebView.setWebViewClient(new MyAppWebViewClient());

}

WebView客户端

public class MyAppWebViewClient extends WebViewClient {

@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
    Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
    view.getContext().startActivity(intent);
    return true;
}
}
}

MainActivity（已修复）

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case ZBAR_SCANNER_REQUEST:
        case ZBAR_QR_SCANNER_REQUEST:
            if (resultCode == RESULT_OK) {

                String value = data.getStringExtra(ZBarConstants.SCAN_RESULT);
                //The FIX IS BELOW url is case-sensitive, instead of url: it's URL:
                String newValue = value.replace("URL:", "");

                Intent intent = new Intent(getApplicationContext(), WebViewActivity.class);
                intent.putExtra("mUrl",newValue);
                startActivity(intent);

                //Toast.makeText(this, "Scan Result = " + data.getStringExtra(ZBarConstants.SCAN_RESULT), Toast.LENGTH_LONG).show();
            } else if(resultCode == RESULT_CANCELED && data != null) {
                String error = data.getStringExtra(ZBarConstants.ERROR_INFO);
                if(!TextUtils.isEmpty(error)) {
                    Toast.makeText(this, error, Toast.LENGTH_SHORT).show();
                }
            }
            break;
    }
}

Answer 1

我认为您不必将以下代码放在 shouldOverrideUrlLoading 中，因为返回true告诉WebView，URL将由以下代码处理。即WebView根本不会加载URL。

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

因此，如果您希望在网页浏览中打开网址，只需在 shouldOverrideUrlLoading 中调用 return false ，除非您要启动其他应用（如Android股票浏览器））打开网址。

将扫描的QR url加载到android webview中

1 个答案: