Databases
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POTo view a result of mathematical action
 

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    <p>I'd like to show the text containing result of addition of two values: one from onespinner selected item, and another from twospinner selected item. But eclipse shows an error in line</p> <pre><code>text.setText(onespinner.getSelectedItem + twospinner.getSelectedItem); </code></pre> <p>What's the matter? Full code goes below.</p> <pre><code>public class photographer extends Activity implements OnItemSelectedListener { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Spinner onespinner = (Spinner) findViewById(R.id.spinner1); ArrayAdapter&lt;CharSequence&gt; unitadapter = ArrayAdapter.createFromResource( this, R.array.onespinner, android.R.layout.simple_spinner_item); unitadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); onespinner.setAdapter(unitadapter); onespinner.setOnItemSelectedListener(this); Spinner twospinner = (Spinner) findViewById(R.id.spinner2); ArrayAdapter&lt;CharSequence&gt; courseadapter = ArrayAdapter.createFromResource( this, R.array.twospinner, android.R.layout.simple_spinner_item); courseadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); twospinner.setAdapter(courseadapter); twospinner.setOnItemSelectedListener(this); } @Override public void onItemSelected(AdapterView&lt;?&gt; parent, View view, int position, long id) { TextView text = (TextView)findViewById(R.id.result); text.setText(onespinner.getSelectedItem + twospinner.getSelectedItem); } @Override public void onNothingSelected(AdapterView&lt;?&gt; parent) { } } </code></pre>
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    1. USLaser42
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      1. USMichael Petrotta
 

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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.

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