Use SQLite database in Swift Lane

SQLite

Speaking SQLite,It is well known to you as MySQL,It is a relational database management system,But unlike the latter is that,It does not necessarily correspond completely independent server!

Generally speaking,SQLite is in the form of a file exist,Mostly used in embedded applications in storage。SQLite library is loaded by the application code,It can easily direct access to SQL[……]

Click link to continue reading...

Xcode meanings in various Sent Event

In Xcode,We give iOS platform App,Will inevitably have to add a button to bind an event,At this time there is a statement,You will find a button touch event already not before a "Touch Up Inside" so simple。

Referring to FIG title,There are at least not so much in some events can be for your choice,In more features at the same time,Novices may be more ignorant of the force?[……]

Click link to continue reading...

nRF24L01 wireless transceiver module Arduino

nRF24L01 is a work in the world-wide 2.4 ~ 2.5GHz ISM band single-chip wireless transceiver chip。Wireless transceiver comprising:Frequency generator、Enhanced mode controller SchockBurstTM、PA、Crystal Oscillator、Modulator、Demodulator。Set the output power and channel selection protocol can be set via the SPI interface。

Easy setup and low[……]

Click link to continue reading...