StackOverflow2013

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plurals

PO
primarykey
Id
15314477
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2013-03-09T18:41:14.630
FavoriteCount
0
LastActivityDate
2013-03-09T19:00:51.237
LastEditDate
2013-03-09T19:00:51.237
LastEditorUserId
687315
OwnerUserId
687315
ParentId
15314458
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
You can't <code>findViewById()</code> earlier than <code>onCreate()</code>. This is because there's no layout loaded yet, and thus no views even exist. In other words, this code: <pre><code>public class MainActivity extends Activity { RadioButton RD1 = (RadioButton) findViewById(R.id.ctof); RadioButton RD2 = (RadioButton) findViewById(R.id.ftoc); EditText input = (EditText) findViewById(R.id.ipdata); EditText output = (EditText) findViewById(R.id.opdata); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } </code></pre> Needs to be like this: <pre><code>public class MainActivity extends Activity { public RadioButton RD1, RD2; public EditText input, output; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); RD1 = (RadioButton) findViewById(R.id.ctof); RD2 = (RadioButton) findViewById(R.id.ftoc); input = (EditText) findViewById(R.id.ipdata); output = (EditText) findViewById(R.id.opdata); } </code></pre> <hr> <code>input.toString()</code> is not the value typed in the text box. For that, you want <code>input.getText().toString()</code>. <hr> In your <code>activity_main.xml</code> file, <code><Button ... android:onClick="docon"></code> means clicking the button will fire the method <code>docon()</code>. You need to rename the method <code>doconvert()</code> or edit the XML.
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POfirst android application gives error
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USuser113215
UserOwnerUserId
1. USuser113215
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

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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.