Ⅰ android SQLiteDatabase涓鐨剈pdate鍑芥暟鐢ㄦ硶鏄浠涔堬紵
1路鍒涘緩鏁版嵁搴揂ndroid 涓嶈嚜鍔ㄦ彁渚涙暟鎹搴撱傚湪 Android 搴旂敤紼嬪簭涓浣跨敤 SQLite錛屽繀欏昏嚜宸卞壋寤烘暟鎹搴擄紝鐒跺悗鍒涘緩琛ㄣ佺儲寮曪紝濉鍏呮暟鎹銆侫ndroid 鎻愪緵浜 SQLiteOpenHelper 甯鍔╀綘鍒涘緩涓涓鏁版嵁搴擄紝浣犲彧瑕佺戶鎵 SQLiteOpenHelper 綾伙紝灝卞彲浠ヨ交鏉劇殑鍒涘緩鏁版嵁搴撱
2路SQLiteOpenHelper 綾繪牴鎹寮鍙戝簲鐢ㄧ▼搴忕殑闇瑕侊紝灝佽呬簡鍒涘緩鍜屾洿鏂版暟鎹搴撲嬌鐢ㄧ殑閫昏緫銆係QLiteOpenHelper 鐨勫瓙綾伙紝鑷沖皯闇瑕佸疄鐜頒笁涓鏂規硶錛氭瀯閫犲嚱鏁幫紝璋冪敤鐖剁被 SQLiteOpenHelper 鐨勬瀯閫犲嚱鏁般
3路榪欎釜鏂規硶闇瑕佸洓涓鍙傛暟錛
涓婁笅鏂囩幆澧冿紙渚嬪傦紝涓涓 Activity錛夛紝
鏁版嵁搴撳悕瀛楋紝
涓涓鍙閫夌殑娓告爣宸ュ巶錛堥氬父鏄 Null錛夛紝
涓涓浠ｈ〃浣犳ｅ湪浣跨敤鐨勬暟鎹搴撴ā鍨嬬増鏈鐨勬暣鏁般俹nCreate錛堬級鏂規硶錛屽畠闇瑕佷竴涓 SQLiteDatabase 瀵硅薄浣滀負鍙傛暟錛屾牴鎹闇瑕佸硅繖涓瀵硅薄濉鍏呰〃鍜屽垵濮嬪寲鏁版嵁銆俹nUpgrage() 鏂規硶錛屽畠闇瑕佷笁涓鍙傛暟錛屼竴涓 SQLiteDatabase 瀵硅薄錛屼竴涓鏃х殑鐗堟湰鍙峰拰涓涓鏂扮殑鐗堟湰鍙鳳紝榪欐牱浣犲氨鍙浠ユ竻妤氬備綍鎶婁竴涓鏁版嵁搴撲粠鏃х殑妯″瀷杞鍙樺埌鏂扮殑妯″瀷銆