我有「電影」一個ArrayList對象 我希望通過「名字」,這是影片對象搜索一個ArrayList和輸出返回到另一個的ArrayList
的屬性之一,它來搜索,多數民衆贊成代碼用於搜索
ArrayList<movie> matches = new ArrayList<movie>();
// go through list of members and compare name with given name
for(movie movie : MovieReg_activity.movies) {
Log.d("searchBar", searchbar);
Log.d("Movie Name", movie.getName());
if (movie.getName().equalsIgnoreCase(searchbar)) {
matches.add(movie); // adds matching member to the return list
}
}
int match_size=matches.size();
tv.setText("no of matches=" +match_size);
match_size總是等於零!
這就是類電影
public class movie {
String name;
int dvd_no ;
public movie(String name1 , int dvd_no1)
{
this.name = name1 ;
this.dvd_no = dvd_no1 ;
}
String getName()
{
return this.name ;
}
}
什麼是代碼的問題?
logcat的
02-17 04:28:38.500: I/Process(638): Sending signal. PID: 638 SIG: 9
02-17 04:30:27.020: W/KeyCharacterMap(720): No keyboard for id 0
02-17 04:30:27.020: W/KeyCharacterMap(720): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 04:43:35.531: W/KeyCharacterMap(747): No keyboard for id 0
02-17 04:43:35.531: W/KeyCharacterMap(747): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 04:55:23.350: W/KeyCharacterMap(774): No keyboard for id 0
02-17 04:55:23.360: W/KeyCharacterMap(774): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 04:58:04.050: W/KeyCharacterMap(801): No keyboard for id 0
02-17 04:58:04.050: W/KeyCharacterMap(801): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 04:59:40.970: W/KeyCharacterMap(828): No keyboard for id 0
02-17 04:59:40.970: W/KeyCharacterMap(828): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 05:01:25.971: W/KeyCharacterMap(881): No keyboard for id 0
02-17 05:01:25.971: W/KeyCharacterMap(881): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 05:01:49.500: W/IInputConnectionWrapper(881): showStatusIcon on inactive InputConnection
02-17 05:02:54.722: W/KeyCharacterMap(908): No keyboard for id 0
02-17 05:02:54.722: W/KeyCharacterMap(908): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 05:24:44.560: W/KeyCharacterMap(935): No keyboard for id 0
02-17 05:24:44.560: W/KeyCharacterMap(935): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 05:27:29.980: W/KeyCharacterMap(962): No keyboard for id 0
02-17 05:27:29.980: W/KeyCharacterMap(962): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-17 05:27:37.289: D/searchBar(962): fawzy
02-17 05:29:33.540: D/searchBar(962): fawzy
是否區分大小寫很重要?如果不是,那麼將你的if語句改爲if(movie.getName()。equalsIgnoreCase(searchbar)){... – panini
你確定searchbar是你想要搜索的嗎?它的類型是一個String嗎?或者你想要做searchbar.getText()之類的? –
甚至是'searchbar.getText()。trim()'。您是否嘗試通過代碼進行調試? – flx