Android Studio中獲得價值了列表視圖

private void populateListView(){ 
    Cursor c = loginDataBaseAdapter.allData(); 

    startManagingCursor(c); 

    String[] fromfields = new String[]{"_id", "NAME", "YEAR", "GENRE"}; 
    int[] toViewIDs = new int[]{R.id.TVmovieID, R.id.TVmovieTtile, R.id.TVmovieYear, R.id.TVmoviegenre}; 
    SimpleCursorAdapter myCursorAdapter = new SimpleCursorAdapter(this, R.layout.mlayout, c, fromfields, toViewIDs); 
    lv.setAdapter(myCursorAdapter); 

    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
      String s = parent.getItemAtPosition(position).toString(); 
      Toast.makeText(Proba.this, "String"+s, Toast.LENGTH_SHORT).show(); 
     } 
    }); 
}

這是我把這個活動的onCreate的方法，我用吐司只是爲了確保即時得到正確的價值，但我得到了android.database.sqlite ... 。我想獲得只有一個領域的價值，但首先我想獲得整個列表的價值。實施Android Studio中獲得價值了列表視圖

來源

2017-02-09 SixStringSamurai

投'parent.getItemAtPosition（位置）''來... Cursor'然後用它 – Selvin

它的工作，我用整數i = cursor.getInt（ 1）;因爲我需要第一列（id）的值。謝謝。 – SixStringSamurai

正確的方式來獲得任何領域

final String[] fromfields = new String[]{"_id", "NAME", "YEAR", "GENRE"}; 
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
    @Override 
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
     Cursor cursor = myCursorAdapter.getItem(position); 
     int columnIndex = cursor.getColumnIndexOrThrow(fromfields[1]) 
     String name = cursor.getString(columnIndex); 
     Toast.makeText(Proba.this, "Name is " + name, Toast.LENGTH_SHORT).show(); 
    } 
});

來源

2017-02-09 13:28:13

Android Studio中獲得價值了列表視圖

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