我想同時從EditText和Spinner獲取文本,但是當我選擇除All類型之外的其他類型時,它將更改爲所有類型本身。使用按鈕在EditText和Spinner中獲取文本
我的問題是爲什麼Feature Flim在單擊發送按鈕後自行更改爲所有類型,不是如何在微調器中獲取所選項目。
的strings.xml:
<string-array name="country_arrays">
<item>All Types</item>
<item>Feature Flim</item>
<item>TV Series</item>
<item>Video Games</item>
</string-array>
activity_main.xml中:
<Spinner
android:id="@+id/spinner1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:entries="@array/country_arrays"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/button_send"
android:onClick="sendMessage"/>
這裏是MainActicity.java的函數SendMessage:
public void sendMessage(View view) {
final Spinner spinner = (Spinner) findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
R.array.country_arrays, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Toast.makeText(getBaseContext(),
"You have selected the book: " + String.valueOf(spinner.getSelectedItem()),
Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
Intent intent = new Intent(this, DisplayMessageActivity.class);
EditText editText = (EditText) findViewById(R.id.edit_message);
String message = editText.getText().toString() + String.valueOf(spinner.getSelectedItem());
intent.putExtra(EXTRA_MESSAGE, message);
startActivity(intent);
}
和DisplayMessageActivity.java:
public class DisplayMessageActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the message from the intent
Intent intent = getIntent();
String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
// Create the text view
TextView textView = new TextView(this);
textView.setTextSize(40);
textView.setText(message);
// Set the text view as the activity layout
setContentView(textView);
}
我選擇功能弗利姆:
我點擊發送後
最後它表明:
爲什麼它自己更改爲所有類型?如何解決它?
我會移動 EditText editText =(EditText)findViewById(R.id.edit_message);雖然作爲私人領域,但這只是一個品味問題。 – Ivo
謝謝!有用! – user23256