Android login Blocker implementation method (i)

<span id="Label3"></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">For the app side, it will be a great user experience to ensure that users can automatically continue their Pre-logon operations after logging in. So it took a bit of time to think of two ways to achieve that kind of demand.<br style="text-align:left;text-indent:2em;"></p></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">This article is about the first way, the way to realize this approach is basically this:</p></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;"><strong> <span style="text-decoration:underline;">When performing an operation that requires a login state, the action is referred to the interceptor, which delays the operation until the login is Successful. </span></strong><br style="text-align:left;text-indent:2em;"></p></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">For example, users want to view personal data, the usual practice is to determine the login or not, if not logged in, you have to log in first, and then return from the login page after the corresponding jump in Onactivityresult. But if you use interceptors, you simply pass on the necessary information from your profile page (such as tagging the activity Action) to the interceptor, the Interceptor is processed, and then jumps to the profile page, so you only need to be concerned about your original needs and view your Profile.</p></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">Next look at the Code:<br style="text-align:left;text-indent:2em;"></p></p><pre>Public void jumptoactivity (context ctx, string target, bundle params)   {jumptoactivity (ctx, target, params, new intent (ctx, getloginclass ()));} /** *  *  @param  ctx *  @param  target *              target Activity's action *  @param  params *              parameters that need to be passed to the target activity  *  @param   loginintent *             intent with parameters pointing to the login page  */public void jumptoactivity (context ctx, string target, bundle  Params,intent loginintent)  {if  (textutils.isempty (target)  | |  loginintent == null) throw new runtimeexception ("no target activity."); Jumpinvoker invoker = new jumpinvoker (target, params);if  (logon ())  {invoker.invoke (ctx);  else {loginintent.putextra (invoker, invoker); loginintent.addflags (Intent.FLAG_ACTIVITY_NEW_ TASK); ctx.startactivity (loginintent);}}</pre><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">The code Jumpinvoker object is the logical performer after successful login, it will be transferred to the login module, after successful login, execute the Invoke method to jump to the specified page, see code:</p></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;"></p></p><pre><pre>@Overridepublic void Invoke (Context ctx) {Intent it = new Intent (mtargetaction); it.putextras (mdata); it.addflags ( intent.flag_activity_new_task); ctx.startactivity (it);}</pre></pre><p><p><br style="text-align:left;text-indent:2em;"></p></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">How to Use:</p></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">1. Make a profit Invoker object in the place where the login succeeds, call the Invoker.invoke method.</p></p><pre><pre>Invoker Invoker = getintent (). getparcelableextra (interceptor.invoker); invoker.invoke (getapplicationcontext ());</pre></pre><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">2. To jump to the activity shown after login, you can use the Jumptoactivity method in the code to <span style="background-color:rgb(248,248,248);">pass in the action and parameters (not Required) of the target Page. </span><br style="text-align:left;text-indent:2em;"></p></p><p><p><br style="text-align:left;text-indent:2em;"></p></p><p style="text-align:left;text-indent:2em;"><p style="text-align:left;text-indent:2em;">The source code and jar package see the attachment, which only implements the logic of the login Jump. For other needs, such as collection click, after login automatically collection, you can also refer to the implementation of interceptor and Invoker Interface.</p></p><p><p>This article is from the "Android Pool" blog, so be sure to keep this source http://yeerik.blog.51cto.com/10547727/1681729</p></p><p><p>Android login Blocker implementation method (i)</p></p></span>