如果您使用 SQLiteDatabase 及其标准方法，如插入、更新和删除自定义 CursorFactory 将不起作用。
我基于 SQLiteDatabase 类实现了我的不是很好但可行的解决方案。它只是重复插入、更新和删除方法的逻辑，但没有语句，实际上是在记录 SQL 语句。
public class SQLiteStatementsLogger {
private static final String TAG = SQLiteStatementsLogger.class.getSimpleName();
private static final String[] CONFLICT_VALUES = new String[]
{"", " OR ROLLBACK ", " OR ABORT ", " OR FAIL ", " OR IGNORE ", " OR REPLACE "};
public void logInsert(String table, String nullColumnHack, ContentValues values) {
logInsertWithOnConflict(table, nullColumnHack, values, 0);
}
public static void logInsertWithOnConflict(String table, String nullColumnHack,
ContentValues initialValues, int conflictAlgorithm) {
StringBuilder sql = new StringBuilder();
sql.append("INSERT");
sql.append(CONFLICT_VALUES[conflictAlgorithm]);
sql.append(" INTO ");
sql.append(table);
sql.append('(');
Object[] bindArgs = null;
int size = (initialValues != null && initialValues.size() > 0)
? initialValues.size() : 0;
if (size > 0) {
bindArgs = new Object[size];
int i = 0;
for (String colName : initialValues.keySet()) {
sql.append((i > 0) ? "," : "");
sql.append(colName);
bindArgs[i++] = initialValues.get(colName);
}
sql.append(')');
sql.append(" VALUES (");
for (i = 0; i < size; i++) {
sql.append((i > 0) ? ",?" : "?");
}
} else {
sql.append(nullColumnHack + ") VALUES (NULL");
}
sql.append(')');
sql.append(". (");
for (Object arg : bindArgs) {
sql.append(String.valueOf(arg)).append(",");
}
sql.deleteCharAt(sql.length()-1).append(')');
Log.d(TAG, sql.toString());
}
public static void logUpdate(String table, ContentValues values, String whereClause, String[] whereArgs) {
logUpdateWithOnConflict(table, values, whereClause, whereArgs, 0);
}
public static void logUpdateWithOnConflict(String table, ContentValues values,
String whereClause, String[] whereArgs, int conflictAlgorithm) {
StringBuilder sql = new StringBuilder(120);
sql.append("UPDATE ");
sql.append(CONFLICT_VALUES[conflictAlgorithm]);
sql.append(table);
sql.append(" SET ");
// move all bind args to one array
int setValuesSize = values.size();
int bindArgsSize = (whereArgs == null) ? setValuesSize : (setValuesSize + whereArgs.length);
Object[] bindArgs = new Object[bindArgsSize];
int i = 0;
for (String colName : values.keySet()) {
sql.append((i > 0) ? "," : "");
sql.append(colName);
bindArgs[i++] = values.get(colName);
sql.append("=?");
}
if (whereArgs != null) {
for (i = setValuesSize; i < bindArgsSize; i++) {
bindArgs[i] = whereArgs[i - setValuesSize];
}
}
if (!TextUtils.isEmpty(whereClause)) {
sql.append(" WHERE ");
sql.append(whereClause);
}
sql.append(". (");
for (Object arg : bindArgs) {
sql.append(String.valueOf(arg)).append(",");
}
sql.deleteCharAt(sql.length()-1).append(')');
Log.d(TAG, sql.toString());
}
public static void logDelete(String table, String whereClause, String[] whereArgs) {
StringBuilder sql = new StringBuilder("DELETE FROM " + table);
if (!TextUtils.isEmpty(whereClause)) {
sql.append(" WHERE " + whereClause);
sql.append(". (");
for (Object arg : whereArgs) {
sql.append(String.valueOf(arg)).append(",");
}
sql.deleteCharAt(sql.length()-1).append(')');
}
Log.d(TAG, sql.toString());
}
}
请注意不要在发布版本中使用记录器。它可能会增加查询的执行时间。
您可以使用以下代码行检查构建是否处于调试模式：
0 != (getApplicationInfo().flags & ApplicationInfo.FLAG_DEBUGGABLE)