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我創建了數組。一個是美國所有狀態(Full Form),另一個是美國所有狀態的簡稱。我已經展示了狀態(Full form )在一個spinner.Now我要做的是顯示狀態的簡短形式,根據用戶在微調選擇。我可以如何實現它。根據其他數組顯示一個數組值
我創建了數組。一個是美國所有狀態(Full Form),另一個是美國所有狀態的簡稱。我已經展示了狀態(Full form )在一個spinner.Now我要做的是顯示狀態的簡短形式,根據用戶在微調選擇。我可以如何實現它。根據其他數組顯示一個數組值
您應該使用映射,即在元素應映射的數組中。讓我舉一個例子。
String[] fullForm = { Alabama, California, Florida, Illinois};
String[] shortForm = {AL, CA, FL, IL};
ArrayAdapter<String> ad = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_dropdown_item,fullForm);
spinner.setAdapter(ad);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long arg3) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), " You selected " + fullForm[position] + "\n Short form is : " + shortForm[position], Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
// try this way,hope this will help you...
**activity_main.xml**
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center">
<Spinner
android:id="@+id/spnState"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
**MainActivity.java**
public class MainActivity extends Activity {
Spinner spnState;
protected void onCreate(Bundle paramBundle) {
super.onCreate(paramBundle);
setContentView(R.layout.activity_main);
spnState = (Spinner) findViewById(R.id.spnState);
String[] stateFullNameArray = new String[]{"statefullname1","statefullname2","statefullname3","statefullname4","statefullname5"};
final String[] stateShortNameArray = new String[]{"stateshortname1","stateshortname2","stateshortname3","stateshortname4","stateshortname5"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,stateFullNameArray);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spnState.setAdapter(adapter);
spnState.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this,stateShortNameArray[position],Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
}
發佈您的代碼你已經嘗試了什麼。 –
獲取微調選定項目的索引,並使用此索引從其他數組中獲取值... –
如何做到@Haresh請問你能解釋一下嗎? – anuj