本文整理汇总了C#中Android.Content.ContentValues.Clear方法的典型用法代码示例。如果您正苦于以下问题：C# ContentValues.Clear方法的具体用法？C# ContentValues.Clear怎么用？C# ContentValues.Clear使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Android.Content.ContentValues的用法示例。
在下文中一共展示了ContentValues.Clear方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: InsertValues
void InsertValues()
{
ContentValues values = new ContentValues();
values.Put(LocationContentProvider._ID, 1);
values.Put(LocationContentProvider.NAME, "Brüel & Kjær");
values.Put(LocationContentProvider.LATITUTDE, 55.816932);
values.Put(LocationContentProvider.LONGITUDE, 12.532697);
Android.Net.Uri uri = ContentResolver.Insert(LocationContentProvider.CONTENT_URI, values);
System.Diagnostics.Debug.WriteLine("Insert: " + uri.ToString());
values.Clear();
values.Put(LocationContentProvider._ID, 2);
values.Put(LocationContentProvider.NAME, "Technical University of Denmark");
values.Put(LocationContentProvider.LATITUTDE, 55.786323);
values.Put(LocationContentProvider.LONGITUDE, 12.524135);
uri = ContentResolver.Insert(LocationContentProvider.CONTENT_URI, values);
System.Diagnostics.Debug.WriteLine("Insert: " + uri.ToString());
}示例2: putRecord
public void putRecord(long time, String difficulty, Context context)
{
dbHelper = new DBHelper(context);
ContentValues cv = new ContentValues();
SQLiteDatabase db = dbHelper.WritableDatabase;
SQLiteCursor c = (SQLiteCursor)db.Query("records", null, " difficulty = ?", new String[]{difficulty}, null, null, null);
int count = 1;
if (c.MoveToFirst()) {
int idColIndex = c.GetColumnIndex("id");
int timeColIndex = c.GetColumnIndex("time");
int maxDBindex = c.GetInt(idColIndex);
int maxDBtime = c.GetInt(timeColIndex);
count++;
while (c.MoveToNext()) {
if (c.GetInt(timeColIndex) > maxDBtime){
maxDBtime = c.GetInt(timeColIndex);
maxDBindex = c.GetInt(idColIndex);
}
count++;
}
if (count == 6){
if (time < maxDBtime){
db.Delete("records", " id = ?", new String[]{maxDBindex + ""});
} else {
c.Close();
db.Close();
return;
}
}
}
cv.Put("time", time);
cv.Put("difficulty", difficulty);
db.Insert("records", null, cv);
cv.Clear();
SQLiteCursor gc = (SQLiteCursor)db.Query("general", null, "difficulty = ?", new String[]{difficulty}, null, null, null);
gc.MoveToFirst();
int avgTimeColIndex = gc.GetColumnIndex("avgTime");
int gamesCountColIndex = gc.GetColumnIndex("gamesCount");
int avgTime = 0;
int gamesCount = 0;
if (gc.MoveToFirst()){
avgTime = gc.GetInt(avgTimeColIndex);
gamesCount = gc.GetInt(gamesCountColIndex);
}
int newGamesCount = gamesCount + 1;
int newAvgTime = (avgTime * gamesCount / newGamesCount) + (int)(time / newGamesCount);
cv.Put("difficulty", difficulty);
cv.Put("avgTime", newAvgTime);
cv.Put("gamesCount", newGamesCount);
db.Delete("general", " difficulty = ?", new String[]{difficulty});
db.Insert("general", null, cv);
db.Close();
c.Close();
gc.Close();
}示例3: initDB
public void initDB(SQLiteDatabase db)
{
db.ExecSQL("DROP TABLE IF EXISTS " + "general");
db.ExecSQL("DROP TABLE IF EXISTS " + "records");
db.ExecSQL("create table records ("
+ "id integer primary key autoincrement,"
+ "time int,"
+ "difficulty text" + ");");
db.ExecSQL("create table general ("
+ "difficulty text primary key,"
+ "avgTime int,"
+ "gamesCount int" + ");");
ContentValues cv = new ContentValues();
cv.Put("difficulty", "Easy");
cv.Put("avgTime", 0);
cv.Put("gamesCount", 0);
db.Insert("general", null, cv);
cv.Clear();
cv.Put("difficulty", "Normal");
cv.Put("avgTime", 0);
cv.Put("gamesCount", 0);
db.Insert("general", null, cv);
cv.Clear();
cv.Put("difficulty", "Hard");
cv.Put("avgTime", 0);
cv.Put("gamesCount", 0);
db.Insert("general", null, cv);
}