android - Cannot redirect to next page -

here home.java code. not redirecting next page, if change intent (home.this, mainactivity.class):

import android.app.activity; import android.content.intent; import android.os.bundle;  public class home extends activity {     protected void oncreate(bundle savedinstancestate) {         // todo auto-generated method stub         super.oncreate(savedinstancestate);         setcontentview(r.layout.fragment_main);         thread timer = new thread() {             public void run() {                 try{                     sleep(2000);                 } catch (interruptedexception e) {                     e.printstacktrace();                 } {                     intent openmainactivity = new   intent("com.droid.mine.mainactivity");                     startactivity(openmainactivity);                 }             }         };         timer.start();}{     } } 

here mainactivity.java code. i.e next page getting error classcastexception:

import android.app.activity; import android.content.intent; import android.os.bundle; import android.view.view; import android.view.view.onclicklistener; import android.widget.button;  public class mainactivity extends activity {     button log,sign;     @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.register);         log = (button) findviewbyid(r.id.register);         sign = (button) findviewbyid(r.id.linktologin);         log.setonclicklistener((onclicklistener) this);         sign.setonclicklistener((onclicklistener) this);     }      public void onclick(view v) {         switch(v.getid()) {         case r.id.register:             break;         case r.id.linktologin:             intent = new intent();             i.setclass(mainactivity.this,register.class);             startactivity(i);             break;         }     } } 

manifest follows:

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.droid.mine"     android:versioncode="1"     android:versionname="1.0" >      <uses-sdk         android:minsdkversion="8"         android:targetsdkversion="19" />      <application         android:allowbackup="true"         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/apptheme" >         <activity             android:name="com.droid.mine.home"             android:label="@string/app_name" >             <intent-filter>                 <action android:name="android.intent.action.main" />                 <category android:name="android.intent.category.launcher" />             </intent-filter>         </activity>         <activity             android:name=".mainactivity"             android:label="@string/app_name" >             <intent-filter>                 <action android:name=".mainactivity" />                 <category android:name="android.intent.category.launcher" />             </intent-filter>         </activity>        </application> </manifest> 

here logcat error:

04-21 15:59:07.156: i/applicationpackagemanager(21341): csccountry not german : ins 04-21 15:59:07.273: d/dalvikvm(21341): gc_external_alloc freed 78k, 47% free 2860k/5379k, external   408k/517k, paused 95ms 04-21 15:59:09.648: w/dalvikvm(21341): threadid=9: thread exiting uncaught exception   (group=0x40018578) 04-21 15:59:09.710: e/androidruntime(21341): fatal exception: thread-10 04-21 15:59:09.710: e/androidruntime(21341): android.content.activitynotfoundexception: no activity  found handle intent { act=com.droid.mine.mainactivity } 04-21 15:59:09.710: e/androidruntime(21341):    @   android.app.instrumentation.checkstartactivityresult(instrumentation.java:1409) 04-21 15:59:09.710: e/androidruntime(21341):    @ android.app.instrumentation.execstartactivity(instrumentation.java:1379) 04-21 15:59:09.710: e/androidruntime(21341):    @ android.app.activity.startactivityforresult(activity.java:2827) 04-21 15:59:09.710: e/androidruntime(21341):    @ android.app.activity.startactivity(activity.java:2933) 04-21 15:59:09.710: e/androidruntime(21341):    @ com.droid.mine.home$1.run(home.java:21) 

here register.java class

package com.droid.mine;  import android.app.activity; import android.content.intent; import android.os.bundle; import android.view.view; import android.widget.button;  public class register extends activity implements view.onclicklistener { button backlog,regg;   protected void oncreate(bundle savedinstancestate) {     // todo auto-generated method stub     super.oncreate(savedinstancestate);     setcontentview(r.layout.login);     backlog = (button) findviewbyid(r.id.loginn);     regg = (button) findviewbyid(r.id.signup);     backlog.setonclicklistener(this); } public void onclick (view v) {      switch(v.getid()) {     case r.id.loginn:         break;     case r.id.signup:         intent in = new intent();         in.setclass(register.this,mainactivity.class);         startactivity(in);         break;     } 

} }

firstly

change intent this:

intent intent = new intent(home.this,mainactivity.class); startactivity(intent);     

secondly

just update manifest this:

<uses-sdk     android:minsdkversion="8"     android:targetsdkversion="19" />  <application     android:allowbackup="true"     android:icon="@drawable/ic_launcher"     android:label="@string/app_name"     android:theme="@style/apptheme" >     <activity         android:name="com.droid.mine.home"         android:label="@string/app_name" >         <intent-filter>             <action android:name="android.intent.action.main" />             <category android:name="android.intent.category.launcher" />         </intent-filter>     </activity>     <activity         android:name="com.droid.mine.mainactivity"         android:label="@string/app_name" >      </activity>        <activity         android:name="com.droid.mine.register"         android:label="@string/app_name" >      </activity>      </application> 

use home activity

package com.example.pms;  import android.app.activity; import android.content.context; import android.content.intent; import android.os.bundle; import android.os.handler; import android.view.motionevent; import android.widget.toast;  public class splashscreen extends activity {             /*      * thread process splash screen events      */     private thread msplashthread;     @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         // splash screen view         setcontentview(r.layout.activity_splash);          final splashscreen msplashscreen=this;         /*          * thread wait splash screen events          */         msplashthread =new thread(){             @override             public void run(){                 try {                     synchronized(this){                         // wait given period of time or exit on touch                         wait(3000);                     }                 }                 catch(interruptedexception ex){                                     }                  finish();                  // run next activity                 startactivity(new intent(getbasecontext(), mainactivity.class));                 new runnable() {                     @override                     public void run() {                         msplashthread.stop();                      }                 };             }         };         msplashthread.start();        }     /**      * processes splash screen touch events      */     @override     public boolean ontouchevent(motionevent event) {             if(event.getaction() == motionevent.action_down)         {             synchronized(msplashthread){                 msplashthread.notifyall();             }         }         return true;     } }