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POApp crash when getting text to var in new class
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  1. POApp crash when getting text to var in new class
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    copied!<p>I've just started writing my first app.<br> I have EditText field in which i want to get it's content (text)... <br> I've created a new class with several fields, one of them is the target for the EditText field content.<br> If i create a local String var and writes :(When name is the local var.)<br> name=(order_name.getText().toString()); <br> Everything works just fine.<br> But when i try to use a class I've created which contains a public String field :<br> order.setName(order_name.getText().toString());<br> I get an FC.<br> I also tried direct insertion from the value to the field, and when that crashed i tried using set function as shown.<br> The class was firstly created using Eclipse new class wizard, after that i recreated it using AndroidManifest.xml wizard.<br></p> <p><strong>Log :</strong><br></p> <pre><code>06-01 17:06:42.104: E/AndroidRuntime(1190): FATAL EXCEPTION: main&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): java.lang.NullPointerException&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at com.Sagi.MyOrders.new_order_activity$1.onClick(new_order_activity.java:46)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at android.view.View.performClick(View.java:2408)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at android.view.View$PerformClick.run(View.java:8816)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at android.os.Handler.handleCallback(Handler.java:587)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at android.os.Handler.dispatchMessage(Handler.java:92)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at android.os.Looper.loop(Looper.java:123)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at android.app.ActivityThread.main(ActivityThread.java:4627)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at java.lang.reflect.Method.invokeNative(Native Method)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at java.lang.reflect.Method.invoke(Method.java:521)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)&lt;br&gt; 06-01 17:06:42.104: E/AndroidRuntime(1190): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p><strong>Thanks guys !</strong></p> <p>Code :<br></p> <pre><code> public class new_order_activity extends Activity { DatabaseHelper DBHelper; // LAYOUT VARS Button saveButton,clearButton; EditText order_name,link,price; CheckBox paid,alert; DatePicker date; // LOCAL VARS Order order; String name1; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.new_order_layout); date = (DatePicker)findViewById(R.id.order_date_field); alert = (CheckBox)findViewById(R.id.alert_checkbox); paid = (CheckBox)findViewById(R.id.paid_checkbox); price = (EditText)findViewById(R.id.price_field); order_name = (EditText)findViewById(R.id.order_name_field); link = (EditText)findViewById(R.id.link_field); saveButton = (Button) findViewById(R.id.save_button); clearButton = (Button) findViewById(R.id.clear_button); DBHelper=new DatabaseHelper(this); saveButton.setOnClickListener( new View.OnClickListener() { public void onClick(View view) { Line46: **order.setName(order_name.getText().toString());** order.link=link.getText().toString(); order.price=price.getText().toString(); order.paid=paid.isChecked(); order.alert=alert.isChecked(); order.year=date.getYear(); order.month=date.getMonth(); order.day=date.getDayOfMonth(); submitOrder(order); } }); </code></pre>
 

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