Databases
StackOverflow2013
Postsdbo
POsuddenly My android Button on click is not working in most of the screens
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POsuddenly My android Button on click is not working in most of the screens
    primarykey
    data
    text
    <p>I have some buttons on my android app which I am developing and suddenly some of the button click is not working. Here is the code for my button click.</p> <pre><code>cancel.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { myIntent=new Intent(relationship.this, relationship.class); String uname; uname=myValues.getString("value").toString(); myIntent.putExtra("value", uname); startActivity(myIntent); } }); </code></pre> <p>And I have also tried different ways changed to <strong>view.onclicklistener</strong> But is no use the following error I am getting.</p> <pre><code>09-24 08:17:03.403: E/AndroidRuntime(1851): FATAL EXCEPTION: main 09-24 08:17:03.403: E/AndroidRuntime(1851): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.newairways/com.example.newairways.relationship}: java.lang.NullPointerException 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.app.ActivityThread.access$600(ActivityThread.java:141) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.os.Handler.dispatchMessage(Handler.java:99) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.os.Looper.loop(Looper.java:137) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.app.ActivityThread.main(ActivityThread.java:5041) 09-24 08:17:03.403: E/AndroidRuntime(1851): at java.lang.reflect.Method.invokeNative(Native Method) 09-24 08:17:03.403: E/AndroidRuntime(1851): at java.lang.reflect.Method.invoke(Method.java:511) 09-24 08:17:03.403: E/AndroidRuntime(1851): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 09-24 08:17:03.403: E/AndroidRuntime(1851): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 09-24 08:17:03.403: E/AndroidRuntime(1851): at dalvik.system.NativeStart.main(Native Method) 09-24 08:17:03.403: E/AndroidRuntime(1851): Caused by: java.lang.NullPointerException 09-24 08:17:03.403: E/AndroidRuntime(1851): at com.example.newairways.relationship.onCreate(relationship.java:81) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.app.Activity.performCreate(Activity.java:5104) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 09-24 08:17:03.403: E/AndroidRuntime(1851): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 09-24 08:17:03.403: E/AndroidRuntime(1851): ... 11 more </code></pre> <p>Here is my code.</p> <pre><code>package com.example.xxx; import android.app.Activity; import android.app.ProgressDialog; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.SeekBar; import android.widget.TextView; import android.widget.Toast; import android.widget.SeekBar.OnSeekBarChangeListener; public class relationship extends Activity implements OnSeekBarChangeListener { //Variables Assign private SeekBar mSeekBar1, mSeekBar2; private TextView tv1, tv2; private Button ok,nextQ,cancel; private ProgressDialog dialog = null; Intent myIntent; Bundle myValues; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.relationships); myValues=getIntent().getExtras(); mSeekBar1 = (SeekBar) findViewById(R.id.Q1a); mSeekBar1.setOnSeekBarChangeListener(this); mSeekBar2= (SeekBar) findViewById(R.id.Q1b); mSeekBar2.setOnSeekBarChangeListener(this); tv1 = (TextView)findViewById(R.id.Ans1a); tv2 = (TextView)findViewById(R.id.Ans1b); //Userame Assign TextView welcomeMsg = (TextView)findViewById(R.id.username); welcomeMsg.setText("name : "+myValues.getString("value")); ok = (Button)findViewById(R.id.ok); nextQ = (Button)findViewById(R.id.nextquestion); cancel= (Button)findViewById(R.id.cancel); ok.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { //Storing in Global variables String a = tv1.getText().toString(); String Q1b = tv2.getText().toString(); GlobalVars.setSeekBarValue(a); GlobalVars.setSeekBarValue1b(Q1b); Toast.makeText(relationship.this, "Datastored",Toast.LENGTH_LONG ).show(); } }); nextQ.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { myIntent=new Intent(relationship.this, start.class); String uname; uname=myValues.getString("value").toString(); myIntent.putExtra("value", uname); startActivity(myIntent); } }); cancel.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { myIntent=new Intent(relationship.this, relationship.class); String uname; uname=myValues.getString("value").toString(); myIntent.putExtra("value", uname); startActivity(myIntent); } }); } @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { switch (seekBar.getId()) { case R.id.Q1a: tv1.setText(Integer.toString(progress)+"%") ; //Toast.makeText(relationship.this, "Seekbar Value : " + progress, Toast.LENGTH_SHORT).show(); break; case R.id.Q1b: tv2.setText(Integer.toString(progress)+"%") ; //Toast.makeText(relationship.this, "Seekbar Value : " + progress, Toast.LENGTH_SHORT).show(); break; } } @Override public void onStartTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub } @Override public void onStopTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USuser2787300
    1. USuser2787300
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POsuddenly My android Button on click is not working in most of the screens
      1. This table or related slice is empty.
      1. VTUpMod
    1. CODid you initialize the `Button`? `Button cancel = (Button)findViewById(R.id.yourButtonID);`
      singulars
      1. POsuddenly My android Button on click is not working in most of the screens
      1. USClaireG
    2. COAre you trying to restart the same activity? Seeing as you're starting `relationship.class` from `relationship.this`.
      singulars
      1. POsuddenly My android Button on click is not working in most of the screens
      1. USLoyalar
    3. COyes I am trying to restart the same activity.
      singulars
      1. POsuddenly My android Button on click is not working in most of the screens
      1. USuser2787300
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload