I am trying To Move Some Data From One Activity To another one. Using

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Editorial Team

Asked: June 14, 20262026-06-14T21:43:10+00:00 2026-06-14T21:43:10+00:00

I am trying To Move Some Data From One Activity To another one. Using

0

I am trying To Move Some Data From One Activity To another one.
Using Class Application

Projects Activities :

Main_Activity.
Second_Activity.

Main Activity Code

public class MainActivity extends Activity
{
    private ApplicationSettings application;
    private Button btn;
    private EditText txt1;
    private EditText txt2;
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        txt1 = (EditText)findViewById(R.id.txt1);
        txt2 = (EditText)findViewById(R.id.txt2);
        btn = (Button)findViewById(R.id.btn);
        btn.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View arg0)
            {
                application = (ApplicationSettings)getApplication();
                application.setUserID(txt1.getText().toString());
                application.setUserName(txt2.getText().toString());
                Intent intent = new Intent(MainActivity.this,SecondActivity.class);
                startActivity(intent);
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
}

=============================
Second Activity Code

public class SecondActivity extends Activity 
{

    private ApplicationSettings application;
    private TextView txt1,txt2;

    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

           application = (ApplicationSettings)getApplication();

           txt1 = (TextView)findViewById(R.id.txt1);
           txt2 = (TextView)findViewById(R.id.txt2);

           txt1.setText(application.getUserID().toString());
           txt2.setText(application.getUserName().toString());
    }
}

==============================
Application Class

public class ApplicationSettings extends Application
{


    String UserID;
    String UserName;

    public String getUserID()
    {
        return UserID;
    }
    public void setUserID(String userID)
    {
        UserID = userID;
    }
    public String getUserName()
    {
        return UserName;
    }
    public void setUserName(String userName)
    {
        UserName = userName;
    }

    @Override
    public void onCreate() {
        super.onCreate();

    }   
}

=============================

LogCat

11-25 15:32:31.695: E/Trace(17282): error opening trace file: No such file or directory (2)
11-25 15:32:31.960: D/libEGL(17282): loaded /system/lib/egl/libEGL_mali.so
11-25 15:32:31.965: D/libEGL(17282): loaded /system/lib/egl/libGLESv1_CM_mali.so
11-25 15:32:31.965: D/libEGL(17282): loaded /system/lib/egl/libGLESv2_mali.so
11-25 15:32:31.975: D/(17282): Device driver API match
11-25 15:32:31.975: D/(17282): Device driver API version: 10
11-25 15:32:31.975: D/(17282): User space API version: 10 
11-25 15:32:31.975: D/(17282): mali: REVISION=Linux-r2p4-02rel0 BUILD_DATE=Wed Sep 12 17:53:53 KST 2012 
11-25 15:32:32.000: D/OpenGLRenderer(17282): Enabling debug mode 0
11-25 15:32:32.005: E/SensorManager(17282): thread start
11-25 15:32:32.010: D/SensorManager(17282): registerListener :: handle = 0  name= LSM330DLC Acceleration Sensor delay= 200000 Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f68078
11-25 15:32:32.075: W/IInputConnectionWrapper(17282): showStatusIcon on inactive InputConnection
11-25 15:32:37.290: D/GestureDetector(17282): [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 2 mFalseSizeCnt:0
11-25 15:32:37.295: D/SensorManager(17282): unregisterListener::  Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f68078
11-25 15:32:37.295: D/Sensors(17282): Remain listener = Sending .. normal delay 200ms
11-25 15:32:37.295: I/Sensors(17282): sendDelay --- 200000000
11-25 15:32:37.295: D/SensorManager(17282): JNI - sendDelay
11-25 15:32:37.295: I/SensorManager(17282): Set normal delay = true
11-25 15:32:37.300: D/SensorManager(17282): registerListener :: handle = 0  name= LSM330DLC Acceleration Sensor delay= 200000 Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f69650
11-25 15:32:37.315: W/IInputConnectionWrapper(17282): getSelectedText on inactive InputConnection
11-25 15:32:37.315: W/IInputConnectionWrapper(17282): setComposingText on inactive InputConnection
11-25 15:32:37.315: W/IInputConnectionWrapper(17282): getExtractedText on inactive InputConnection
11-25 15:32:41.350: D/SensorManager(17282): unregisterListener::  Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f69650
11-25 15:32:41.350: D/Sensors(17282): Remain listener = Sending .. normal delay 200ms
11-25 15:32:41.350: I/Sensors(17282): sendDelay --- 200000000
11-25 15:32:41.350: D/SensorManager(17282): JNI - sendDelay
11-25 15:32:41.350: I/SensorManager(17282): Set normal delay = true
11-25 15:32:41.620: W/IInputConnectionWrapper(17282): showStatusIcon on inactive InputConnection
11-25 15:32:46.200: D/SensorManager(17282): registerListener :: handle = 0  name= LSM330DLC Acceleration Sensor delay= 200000 Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f8b4c8
11-25 15:32:47.170: D/GestureDetector(17282): [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 2 mFalseSizeCnt:0
11-25 15:32:47.175: D/SensorManager(17282): unregisterListener::  Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f8b4c8
11-25 15:32:47.175: D/Sensors(17282): Remain listener = Sending .. normal delay 200ms
11-25 15:32:47.175: I/Sensors(17282): sendDelay --- 200000000
11-25 15:32:47.175: D/SensorManager(17282): JNI - sendDelay
11-25 15:32:47.175: I/SensorManager(17282): Set normal delay = true
11-25 15:32:47.180: D/SensorManager(17282): registerListener :: handle = 0  name= LSM330DLC Acceleration Sensor delay= 200000 Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f8c6b8
11-25 15:32:47.210: W/IInputConnectionWrapper(17282): getSelectedText on inactive InputConnection
11-25 15:32:47.210: W/IInputConnectionWrapper(17282): setComposingText on inactive InputConnection
11-25 15:32:47.210: W/IInputConnectionWrapper(17282): getExtractedText on inactive InputConnection
11-25 15:32:50.470: D/GestureDetector(17282): [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 2 mFalseSizeCnt:0
11-25 15:32:50.475: D/SensorManager(17282): unregisterListener::  Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f8c6b8
11-25 15:32:50.475: D/Sensors(17282): Remain listener = Sending .. normal delay 200ms
11-25 15:32:50.475: I/Sensors(17282): sendDelay --- 200000000
11-25 15:32:50.475: D/SensorManager(17282): JNI - sendDelay
11-25 15:32:50.475: I/SensorManager(17282): Set normal delay = true
11-25 15:32:50.480: D/SensorManager(17282): registerListener :: handle = 0  name= LSM330DLC Acceleration Sensor delay= 200000 Listener= android.view.OrientationEventListener$SensorEventListenerImpl@41f8b4c8
11-25 15:32:50.490: W/IInputConnectionWrapper(17282): getSelectedText on inactive InputConnection
11-25 15:32:50.490: W/IInputConnectionWrapper(17282): setComposingText on inactive InputConnection
11-25 15:32:50.490: W/IInputConnectionWrapper(17282): getExtractedText on inactive InputConnection
11-25 15:32:53.000: D/GestureDetector(17282): [Surface Touch Event] mSweepDown False, mLRSDCnt : -1 mTouchCnt : 3 mFalseSizeCnt:0
11-25 15:32:53.160: D/AndroidRuntime(17282): Shutting down VM
11-25 15:32:53.160: W/dalvikvm(17282): threadid=1: thread exiting with uncaught exception (group=0x412862a0)
11-25 15:32:53.175: E/AndroidRuntime(17282): FATAL EXCEPTION: main
11-25 15:32:53.175: E/AndroidRuntime(17282): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.test01/com.example.test01.SecondActivity}: java.lang.NullPointerException
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.app.ActivityThread.access$600(ActivityThread.java:140)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.os.Handler.dispatchMessage(Handler.java:99)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.os.Looper.loop(Looper.java:137)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.app.ActivityThread.main(ActivityThread.java:4898)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at java.lang.reflect.Method.invokeNative(Native Method)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at java.lang.reflect.Method.invoke(Method.java:511)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at dalvik.system.NativeStart.main(Native Method)
11-25 15:32:53.175: E/AndroidRuntime(17282): Caused by: java.lang.NullPointerException
11-25 15:32:53.175: E/AndroidRuntime(17282):    at com.example.test01.SecondActivity.onCreate(SecondActivity.java:26)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.app.Activity.performCreate(Activity.java:5191)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
11-25 15:32:53.175: E/AndroidRuntime(17282):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064)
11-25 15:32:53.175: E/AndroidRuntime(17282):    ... 11 more
11-25 15:32:53.195: D/dalvikvm(17282): GC_CONCURRENT freed 180K, 9% free 12405K/13575K, paused 12ms+2ms, total 31ms

I need To Pass Data From the DditTexts on the main activity to the TextView in Second_activity

Thanks In Advance

Regards

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1 Answer

Editorial Team · Answer 1 · 2026-06-14T21:43:12+00:00

As your Logs as :

have you declared this activity in your AndroidManifest.xml?

means make sure you have declared SecondActivity.class activity in AndroidManifest as :

<Activity android:name=".SecondActivity" />

if you have declared it then make sure it’s in same package or have same name as you have created in SecondActivity.java

if you have SecondActivity in different Package then declare it in AndroidManifest as :

<Activity android:name="<FULL_PACKAGE_NAME>.SecondActivity" />

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