Databases
StackOverflow2013
Postsdbo
POLayout visibility changing is possible while i am in another layout?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POLayout visibility changing is possible while i am in another layout?
    primarykey
    data
    text
    <p>Here I create four <strong>xml</strong> files <code>main.xml</code>,<code>test1.xml</code>,<code>test2.xml</code>,<code>test3.xml</code>.</p> <p>They are accessed in <code>spinner</code> but I received an exception. I am giving <strong>logcat</strong> also.</p> <p>Please help me.</p> <pre><code>String[] lan = { "test1", "test2", "test3" }; Spinner spn = (Spinner) findViewById(R.id.spinner1); ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_spinner_dropdown_item, lan); spn.setAdapter(adapter); spn.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView&lt;?&gt; parent, View v, int pos, long id) { if (pos == 0) { findViewById(R.layout.test1).setVisibility(View.VISIBLE); } else if (pos == 1) { findViewById(R.layout.test2).setVisibility(View.VISIBLE); } else if (pos == 2) { findViewById(R.layout.test3).setVisibility(View.VISIBLE); } } @Override public void onNothingSelected(AdapterView&lt;?&gt; arg0) { } }); </code></pre> <p>Logcat:</p> <pre><code>07-11 18:09:39.480: E/AndroidRuntime(21200): FATAL EXCEPTION: main 07-11 18:09:39.480: E/AndroidRuntime(21200): java.lang.NullPointerException 07-11 18:09:39.480: E/AndroidRuntime(21200): at com.venky.innverlayoutchangevisibility.MainActivity$1.onItemSelected(MainActivity.java:30) 07-11 18:09:39.480: E/AndroidRuntime(21200): at android.widget.AdapterView.fireOnSelected(AdapterView.java:871) 07-11 18:09:39.480: E/AndroidRuntime(21200): at android.widget.AdapterView.access$200(AdapterView.java:42) 07-11 18:09:39.480: E/AndroidRuntime(21200): at android.widget.AdapterView$SelectionNotifier.run(AdapterView.java:837) 07-11 18:09:39.480: E/AndroidRuntime(21200): at android.os.Handler.handleCallback(Handler.java:587) 07-11 18:09:39.480: E/AndroidRuntime(21200): at android.os.Handler.dispatchMessage(Handler.java:92) 07-11 18:09:39.480: E/AndroidRuntime(21200): at android.os.Looper.loop(Looper.java:130) 07-11 18:09:39.480: E/AndroidRuntime(21200): at android.app.ActivityThread.main(ActivityThread.java:3691) 07-11 18:09:39.480: E/AndroidRuntime(21200): at java.lang.reflect.Method.invokeNative(Native Method) 07-11 18:09:39.480: E/AndroidRuntime(21200): at java.lang.reflect.Method.invoke(Method.java:507) 07-11 18:09:39.480: E/AndroidRuntime(21200): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907) 07-11 18:09:39.480: E/AndroidRuntime(21200): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) 07-11 18:09:39.480: E/AndroidRuntime(21200): at dalvik.system.NativeStart.main(Native Method) </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USpicciano
    1. USVenky
    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
    1. VO
      singulars
      1. POLayout visibility changing is possible while i am in another layout?
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    2. VO
      singulars
      1. POLayout visibility changing is possible while i am in another layout?
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. COTry `MainActivity.this.findViewById(R.layout.test1).setVisibility(View.VISIBLE);`
      singulars
      1. POLayout visibility changing is possible while i am in another layout?
      1. USSimon
    2. COI am try but no use.Same exception is rising
      singulars
      1. POLayout visibility changing is possible while i am in another layout?
      1. USVenky
 

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