Databases
StackOverflow2013
Postsdbo
PONullPointerException while using intent to pass string array
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PONullPointerException while using intent to pass string array
    primarykey
    data
    text
    <p>I want to recieve my array values from players.java to player_name.java. It gives NumberFormatException when I click on the button on player_name.java.</p> <p>I have used two intents in these two activities. If I remove one intent which passes an array then it is working, otherwise it is not working</p> <p>How do I use multiple intents in single activity? Please help.</p> <p>player.java</p> <pre><code>public class players extends Activity { LinearLayout player_layout; Bundle b; List&lt;EditText&gt; allEds = new ArrayList&lt;EditText&gt;(); @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.players); b = getIntent().getExtras(); String resStr = b.getString("name"); player_layout = (LinearLayout) findViewById(R.id.player_layout); EditText[] ed1 = new EditText[Integer.parseInt(resStr)+1]; Button add_player = new Button(players.this); add_player.setText("Add Players"); for(int i=1; i &lt;= Integer.parseInt(resStr); i++) { ed1[i] = new EditText(players.this); allEds.add(ed1[i]); player_layout.addView(ed1[i]); ed1[i].setId(i); ed1[i].setHint("enter player" +i+ "name"); ed1[i].setHeight(50); ed1[i].setWidth(300); } LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); player_layout.addView(add_player, lp); add_player.setOnClickListener(new OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub Intent intent = new Intent(players.this, player_name.class); Intent intent1 = new Intent(players.this, player_name.class); String[] strings = new String[allEds.size()]; for(int i=0; i &lt; allEds.size(); i++){ strings[i] = allEds.get(i).getText().toString(); // intent.putExtra("playerName",b.getString("name")); intent.putExtra("playerName",strings); } intent1.putExtra("play", b.getString("name")); startActivity(intent); startActivity(intent1); } }); } } </code></pre> <p>player_name.java</p> <pre><code>public class player_name extends Activity { LinearLayout player_name; Bundle b,b1; List&lt;TextView&gt; allEds = new ArrayList&lt;TextView&gt;(); List&lt;Button&gt; allplus = new ArrayList&lt;Button&gt;(); List&lt;Button&gt; allminus = new ArrayList&lt;Button&gt;(); @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.player_name); b = getIntent().getExtras(); String resStr = b.getString("name"); b1 = getIntent().getExtras(); String[] result = b1.getStringArray("playerName"); player_name = (LinearLayout) findViewById(R.id.player_name); TextView[] ed1 = new TextView[Integer.parseInt(resStr)+1]; Button[] plus = new Button[Integer.parseInt(resStr)+1]; Button[] minus = new Button[Integer.parseInt(resStr)+1]; for(int i=1;i&lt;=Integer.parseInt(resStr);i++) { ed1[i] = new TextView(player_name.this); plus[i] = new Button(player_name.this); minus[i] = new Button(player_name.this); allEds.add(ed1[i]); allplus.add(plus[i]); allminus.add(minus[i]); player_name.addView(ed1[i]); player_name.addView(plus[i]); player_name.addView(minus[i]); ed1[i].setId(i); ed1[i].setHeight(50); ed1[i].setWidth(300); ed1[i].setText(result[i]); ed1[i].setTextColor(Color.CYAN); plus[i].setId(i); plus[i].setHeight(50); plus[i].setWidth(300); plus[i].setText("+"); plus[i].setTextColor(Color.BLACK); minus[i].setId(i); minus[i].setHeight(50); minus[i].setWidth(300); minus[i].setText("-"); minus[i].setTextColor(Color.BLACK); } } } </code></pre> <p>logcat :-</p> <pre><code>06-18 04:03:25.657: D/dalvikvm(300): GC_EXTERNAL_ALLOC freed 767 objects / 55840 bytes in 87ms 06-18 04:03:29.057: E/global(300): Deprecated Thread methods are not supported. 06-18 04:03:29.057: E/global(300): java.lang.UnsupportedOperationException 06-18 04:03:29.057: E/global(300): at java.lang.VMThread.stop(VMThread.java:85) 06-18 04:03:29.057: E/global(300): at java.lang.Thread.stop(Thread.java:1379) 06-18 04:03:29.057: E/global(300): at java.lang.Thread.stop(Thread.java:1344) 06-18 04:03:29.057: E/global(300): at com.example.snooder.splash$1.run(splash.java:35) 06-18 04:03:55.678: D/AndroidRuntime(300): Shutting down VM 06-18 04:03:55.678: W/dalvikvm(300): threadid=1: thread exiting with uncaught exception (group=0x4001d800) 06-18 04:03:55.717: E/AndroidRuntime(300): FATAL EXCEPTION: main 06-18 04:03:55.717: E/AndroidRuntime(300): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.snooder/com.example.snooder.player_name}: java.lang.NumberFormatException: unable to parse 'null' as integer 06-18 04:03:55.717: E/AndroidRuntime(300): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 06-18 04:03:55.717: E/AndroidRuntime(300): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 06-18 04:03:55.717: E/AndroidRuntime(300): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 06-18 04:03:55.717: E/AndroidRuntime(300): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 06-18 04:03:55.717: E/AndroidRuntime(300): at android.os.Handler.dispatchMessage(Handler.java:99) 06-18 04:03:55.717: E/AndroidRuntime(300): at android.os.Looper.loop(Looper.java:123) 06-18 04:03:55.717: E/AndroidRuntime(300): at android.app.ActivityThread.main(ActivityThread.java:4627) 06-18 04:03:55.717: E/AndroidRuntime(300): at java.lang.reflect.Method.invokeNative(Native Method) 06-18 04:03:55.717: E/AndroidRuntime(300): at java.lang.reflect.Method.invoke(Method.java:521) 06-18 04:03:55.717: E/AndroidRuntime(300): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 06-18 04:03:55.717: E/AndroidRuntime(300): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 06-18 04:03:55.717: E/AndroidRuntime(300): at dalvik.system.NativeStart.main(Native Method) 06-18 04:03:55.717: E/AndroidRuntime(300): Caused by: java.lang.NumberFormatException: unable to parse 'null' as integer 06-18 04:03:55.717: E/AndroidRuntime(300): at java.lang.Integer.parseInt(Integer.java:406) 06-18 04:03:55.717: E/AndroidRuntime(300): at java.lang.Integer.parseInt(Integer.java:382) 06-18 04:03:55.717: E/AndroidRuntime(300): at com.example.snooder.player_name.onCreate(player_name.java:41) 06-18 04:03:55.717: E/AndroidRuntime(300): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 06-18 04:03:55.717: E/AndroidRuntime(300): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 06-18 04:03:55.717: E/AndroidRuntime(300): ... 11 more </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USEdward Falk
    1. USWilson S
    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. PONullPointerException while using intent to pass string array
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PONullPointerException while using intent to pass string array
      1. This table or related slice is empty.
      1. VTUpMod
    1. COCan you show us the logcat from the exception?
      singulars
      1. PONullPointerException while using intent to pass string array
      1. USEdward Falk
 

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