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我有一個ListView,它顯示靜態數據以及圖像(比如Activity A)。當我點擊一個ListVoew項目時,數據被捕獲並傳遞到下一個Activity(讓我們稱之爲Activity B)。在活動B中,我想將選定的值傳遞給數據庫選擇where子句並獲取數據並顯示與選擇相關的相關信息。這裏是我的代碼片段...傳遞Listview OnClick以從數據庫獲取數據
活動A:
String subproduct = ((TextView) view.findViewById(R.id.product_label)).getText().toString();
// Launching new Activity on selecting single List Item
SharedPreferences sharedPreferences = getSharedPreferences("pref",MODE_WORLD_READABLE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.clear();
editor.putString("subproduct", subproduct);
editor.commit();
Intent myIntent = new Intent(getApplicationContext(),Details.class);
startActivity(myIntent);
,這裏是我的活動B:enter code here
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
this.setContentView(R.layout.details1);
SharedPreferences myPrefs = this.getSharedPreferences("pref", MODE_WORLD_READABLE);
String subproduct = myPrefs.getString("subproduct","null");
TextView txtProduct1 = (TextView) findViewById(R.id.detail_item);
txtProduct1.setText(subproduct);
,這裏是我的DBHelper.java 。在這裏我想通過選定的值。請幫我,我怎麼能達致這...
public Cursor getData(){
//SharedPreferences myPrefs = this.getSharedPreferences("pref", 0);
//String subproduct = myPrefs.getString("subproduct","null");
Cursor c = myDataBase.rawQuery("SELECT * FROM Destmain WHERE destname= " + ? + " ", null);
while (c.moveToNext()){
DestInfo q = new DestInfo();
q.setDestination(c.getString(1));
q.setCity(c.getString(2));
q.setCountry(c.getString(3));
q.setPeriod(c.getString(4));
q.setType(c.getString(5));
q.setCurrency(c.getString(6));
q.setBriefhistory(c.getString(7));
q.setHighlights(c.getString(8));
}
c.close();
return c;
誰能幫我,我怎麼能傳遞的ListView(活動A)選擇的值到活動B獲取DB數據並顯示?萬分感謝。