关于我的应用程序:保存培训性能 - 一个包含许多表的数据库(一个表是锻炼日志)。日期是表格的名称(例如d2016_08_09)。当用户按下"保存按钮"时,app会设置表的名称。
public static final String DB_NAME ="db_workout";//name of base
public static String DB_TABLE ="dateOfWorkout";//name of table
public static final int DB_VER =1;
public static void setDbTable(String dbTable) {
DB_TABLE = dbTable;
}
public Base(Context context, String name, SQLiteDatabase.CursorFactory factory, int version, String db_table_name) {
super(context, DB_NAME, null, DB_VER);
setDbTable(db_table_name);
System.out.println(DB_TABLE);
}
@Override
public void onCreate(SQLiteDatabase db){
db.execSQL(
"create table IF NOT EXISTS "+ DB_TABLE +"("
+ "nr integer primary key autoincrement,"
+ "name text,"
+ "s1 integer,"
+ "s2 integer,"
+ "s3 integer,"
+ "s4 integer,"
+ "s5 integer,"
+ "weight integer);"
+"");
}
public void addWorkoutPlan(String i, int q, int w, int e, int r, int t, int wt) {
SQLiteDatabase db = getWritableDatabase();
ContentValues wartosci = new ContentValues();
wartosci.put("name", i);
wartosci.put("s1", q);
wartosci.put("s2", w);
wartosci.put("s3", e);
wartosci.put("s4", r);
wartosci.put("s5",t);
wartosci.put("weight",wt);
db.insertOrThrow(DB_TABLE, null, wartosci);
}
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
//uzupelnic
}
和我使用的类添加日期基础
sNameTable = "d"+sNameTable;
db= new Base(this,null,null,0,sNameTable);
bAddDate = (Button) findViewById(R.id.bAddDate);
bAddDate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setValues(); // setting values
for (int i = 0; i < 1; i++) {
db.addWorkoutPlan(
tName[0][i].toString(),//nazwa cwiczenia
Integer.parseInt(tSeries[0][i].getText().toString()),//1. seria
Integer.parseInt(tSeries[1][i].getText().toString()),
Integer.parseInt(tSeries[2][i].getText().toString()),
Integer.parseInt(tSeries[3][i].getText().toString()),
Integer.parseInt(tSeries[4][i].getText().toString()),
Integer.parseInt(tWeight[0][i].getText().toString())
);
}
Context context = getApplicationContext();
CharSequence text = "Trening dodany";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
});
}
当我按下按钮添加日期,应用程序崩溃和AndroidStudio获取此日志:
23190-23190 / com.example.konra_000.workoutplan E / SQLiteLog:(1)没有这样的表:d2016_08_09
23190-23190 / com.example.konra_000.workoutplan E / AndroidRuntime:致命异常:主要 处理:com.example.konra_000.workoutplan,PID:23190 android.database.sqlite.SQLiteException:没有这样的表:d2016_08_09 (代码1):,编译时:INSERT INTO d2016_08_09(名称,s3,权重,s2,s1,s5,s4)值(?,?,?,?,?,?,?)
答案 0 :(得分:0)
当您对SQLite数据库进行一些更改时,有时无法看到更改,因为您创建数据库的逻辑未经过优化。
因此,您的设备上可能存在较旧版本的数据库,只需卸载并重新安装该应用即可。