android OS升级到4.4之后，有些WebView的链接我们点击无效了，以下能够解决当中的某一种情况:
webviewClient的shouldOverrideUrlLoading方法必须返回false,返回true会导致这个问题
有时候PM会有一种需求，假设不是Server那边的问题，那么想在界面上显示自己定义的错误(如遇到连接到WIFI CMCC而没有移动的password,手机显示着连接上了WIFI)
这时我们须要去截获WebView的error,能够通过重载setWebViewClient的方法去截获，能够參考google文档:点击这里打开
在代码:
<span style="white-space:pre"> </span>this.mWebView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.startsWith(ReportActivity.this.getString(R.string.url_start_chars1))
|| url.startsWith(ReportActivity.this.getString(R.string.url_start_chars2))) {
view.loadUrl(url);
} else if(url.startsWith(ReportActivity.this.getString(R.string.url_start_chars3))){
Uri uri=Uri.parse(url);
Intent emailIntent=new Intent(Intent.ACTION_SENDTO, uri);
List<ResolveInfo> availableSoft = getPackageManager().queryIntentActivities(emailIntent, PackageManager.MATCH_DEFAULT_ONLY);
if (availableSoft.size() > 0) {
try {
startActivity(emailIntent);
} catch (Exception e) {
}
}
}
return false;
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed();
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { //这里截获错误
isLoadingError = true;
Toast.makeText(ReportActivity.this, "errorCode="+errorCode, Toast.LENGTH_LONG).show();
super.onReceivedError(view, errorCode, description, failingUrl);
}
});
this.mWebView.setWebChromeClient(new WebChromeClient() {
@Override
public void onProgressChanged(WebView view, int newProgress) {
if (newProgress >= 80) {
updateState(true);
System.out.println("=========isSuccess onProgressChanged isLoadingError="+isLoadingError);
if(isLoadingError) {
mState = State.GetDataError;
}
updateStateView();
}
}
});
错误的类型有:
// These ints must match up to the hidden values in EventHandler.
/** Generic error */
public static final int ERROR_UNKNOWN = -1;
/** Server or proxy hostname lookup failed */
public static final int ERROR_HOST_LOOKUP = -2;
/** Unsupported authentication scheme (not basic or digest) */
public static final int ERROR_UNSUPPORTED_AUTH_SCHEME = -3;
/** User authentication failed on server */
public static final int ERROR_AUTHENTICATION = -4;
/** User authentication failed on proxy */
public static final int ERROR_PROXY_AUTHENTICATION = -5;
/** Failed to connect to the server */
public static final int ERROR_CONNECT = -6;
/** Failed to read or write to the server */
public static final int ERROR_IO = -7;
/** Connection timed out */
public static final int ERROR_TIMEOUT = -8;
/** Too many redirects */
public static final int ERROR_REDIRECT_LOOP = -9;
/** Unsupported URI scheme */
public static final int ERROR_UNSUPPORTED_SCHEME = -10;
/** Failed to perform SSL handshake */
public static final int ERROR_FAILED_SSL_HANDSHAKE = -11;
/** Malformed URL */
public static final int ERROR_BAD_URL = -12;
/** Generic file error */
public static final int ERROR_FILE = -13;
/** File not found */
public static final int ERROR_FILE_NOT_FOUND = -14;
/** Too many requests during this load */
public static final int ERROR_TOO_MANY_REQUESTS = -15;