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POhow to run an another class activity after toast message displayed?
 

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  1. POhow to run an another class activity after toast message displayed?
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    <pre><code> mainListView.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position, long id) { String item = ((TextView)view).getText().toString(); Toast.makeText(getBaseContext(), item, Toast.LENGTH_LONG).show(); tcpSocket.SendMessage(FramePacket.FramesendMessageCmd(item)); } }); </code></pre> <p>herer is my code. i want to start another activity after click on the message item. i tried a lot. But not working. any one know help me please. how to solve this. I tried a lot. it give nullpointer exception error.</p> <p>catlog error here</p> <pre><code> 09-02 13:36:44.364: E/AndroidRuntime(28601): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dispatchsystem/com.dispatchsystem.JobStartedScreen}: java.lang.NullPointerException 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1967) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.app.ActivityThread.access$600(ActivityThread.java:127) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.os.Handler.dispatchMessage(Handler.java:99) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.os.Looper.loop(Looper.java:137) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.app.ActivityThread.main(ActivityThread.java:4448) 09-02 13:36:44.364: E/AndroidRuntime(28601): at java.lang.reflect.Method.invokeNative(Native Method) 09-02 13:36:44.364: E/AndroidRuntime(28601): at java.lang.reflect.Method.invoke(Method.java:511) 09-02 13:36:44.364: E/AndroidRuntime(28601): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823) 09-02 13:36:44.364: E/AndroidRuntime(28601): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590) 09-02 13:36:44.364: E/AndroidRuntime(28601): at dalvik.system.NativeStart.main(Native Method) 09-02 13:36:44.364: E/AndroidRuntime(28601): Caused by: java.lang.NullPointerException 09-02 13:36:44.364: E/AndroidRuntime(28601): at com.dispatchsystem.JobStartedScreen.onCreate(JobStartedScreen.java:65) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.app.Activity.performCreate(Activity.java:4465) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 09-02 13:36:44.364: E/AndroidRuntime(28601): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931) </code></pre> <p>jobstartedscreen</p> <pre><code> public class JobStartedScreen extends Activity implements OnMessageReceived{ TextView tv_JobNo; static TextView tv_JobKm; static TextView tv_JobwaitngTime; TextView tvjobstartedtime; Button btn_jobFinsh; Button btn_msg; boolean _ThreadFlag=false; boolean _ResumeThread=false; private Window w; Thread t=null; String tag="Jobstartscreen"; private static MyThread sThread; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.jobstartedscreen); if (savedInstanceState==null){ Contsants.VehicleStartOdometer=0.0F; sThread=new MyThread(mHandler); sThread.start(); } StateManager.DeviceStatus=StateManager.hired; tcpSocket.setmMessageListener(this); tv_JobNo =(TextView)findViewById(R.id.tvJobid); Bundle bundle = getIntent().getExtras(); tv_JobNo.setText(bundle.get("Jobno").toString()); tv_JobKm =(TextView)findViewById(R.id.tvjobKm); tv_JobwaitngTime =(TextView)findViewById(R.id.tvjobWaittime); tv_JobwaitngTime.setText("Waiting Time : 0:0"); //update the Km every 1 sec Log.d(tag, "On created "+_ResumeThread); tvjobstartedtime=(TextView)findViewById(R.id.tv_jobStarttime); tvjobstartedtime.setText("Start Time :"+Contsants.jobStartTime); btn_jobFinsh= (Button)findViewById(R.id.btn_jobFinsh); btn_jobFinsh.setOnClickListener(onClickListener); btn_msg= (Button)findViewById(R.id.btn_msg); btn_msg.setOnClickListener(onClickListener); // TODO Auto-generated method stub } @Override public void onStart() { super.onStart(); } @Override public void onResume() { super.onResume(); w = this.getWindow(); w.addFlags(LayoutParams.FLAG_DISMISS_KEYGUARD); w.addFlags(LayoutParams.FLAG_SHOW_WHEN_LOCKED); w.addFlags(LayoutParams.FLAG_TURN_SCREEN_ON); Log.d("job start on resume",_ThreadFlag+" "+_ResumeThread); } @Override protected void onRestoreInstanceState(Bundle savedInstanceState){ super.onRestoreInstanceState(savedInstanceState); if (sThread.isAlive()){ sThread.setHandler(mHandler); } } @Override protected void onDestroy(){ super.onDestroy(); if (sThread.isAlive()){ sThread.setHandler(null); } } boolean _Paused=false; @Override public void onPause() { super.onPause(); _Paused=true; } @Override public void onBackPressed() { // do nothing. } private OnClickListener onClickListener = new OnClickListener() { @Override public void onClick(final View v) { switch(v.getId()){ case R.id.btn_jobFinsh: //DO something _ThreadFlag=true; StateManager.JobStatus=StateManager.jobstatus_dropped; tcpSocket.SendMessage(FramePacket.FrameJobStatusCmd(Contsants.Jobno,StateManager.JobStatus) ); SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yy HH:mm"); String currentDateandTime = sdf.format(new Date()); Contsants.jobEndTime=currentDateandTime; Intent i = new Intent(getApplicationContext(),JobCompletionScreen.class); startActivity(i); sThread.setHandler(null); finish(); break; case R.id.btn_msg: /*Intent iNAV = new Intent(Intent.ACTION_VIEW, Uri.parse("http://maps.google.com/maps?saddr=12.920629,77.610643&amp;daddr=12.990346, 77.589521") ); startActivity(iNAV);*/ Intent imsg = new Intent(getApplicationContext(),MessageList.class); startActivity(imsg); break; } } }; static Handler mHandler =new Handler(){ @Override public void handleMessage(Message message){ //update UI Bundle b = message.getData(); float odometer = b.getFloat("My Odometer"); int waiting =b.getInt("waiting Time"); tv_JobKm.setText(odometer+" Km"); tv_JobwaitngTime.setText("Waiting Time : "+Integer.toString((waiting / 60)) +":"+ Integer.toString((waiting% 60))); } }; private class MyThread extends Thread{ private Handler mHandler; public MyThread(Handler handler){ super(); mHandler=handler; } @Override public void run(){ //some long operation if (mHandler!=null) mHandler.sendEmptyMessage(0); _ResumeThread=true; while(!_ThreadFlag) { try { Thread.sleep(1000); Message msg = new Message(); Bundle b = new Bundle(); b.putFloat("My Odometer", (float) (gpsdataElements.Distance-Contsants.jobStartKm)); if(gpsdataElements.Speed==0.0) { Contsants.cont_WaitingTimeInSec++; } b.putInt("waiting Time", Contsants.cont_WaitingTimeInSec); // tv_JobwaitngTime.setText("Waiting Time : "+Integer.toString((Contsants.cont_WaitingTimeInSec / 60)) +":"+ Integer.toString((Contsants.cont_WaitingTimeInSec % 60))); //send message to the handler with the current message handler msg.setData(b); // send message to the handler with the current message handler mHandler.sendMessage(msg); } catch (Exception e) { Log.v("Error", e.toString()); } } } public void setHandler(Handler handler){ mHandler=handler; } } @Override public void messageReceived(String message) { // TODO Auto-generated method stub //Toast.makeText(getApplicationContext(), "Job StartScreem : Recived data :"+message, Toast.LENGTH_LONG).show(); } } </code></pre>
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    1. USRamesh
    1. USRamesh
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    1. COSee [Listview , open new activity onClick](http://stackoverflow.com/questions/6660126/listview-open-new-activity-onclick)
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      1. POhow to run an another class activity after toast message displayed?
      1. USShobhit Puri
    2. COYou want to change activity on listItem click or on toast message click, i didn't get it.
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      1. POhow to run an another class activity after toast message displayed?
      1. USJilberta
    3. COthat one is ok dude.But i want to start an another activity when click on any message item. how can i do that. for this i want to write loop condtion?
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      1. POhow to run an another class activity after toast message displayed?
      1. USRamesh
 

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