Lan Yi Education TableView, Navigationcontroller,tableviewcontroller

I studied TableView yesterday, Navigationcontroller,tableviewcontroller.

TableView:

TableView reuse mechanism (memory saving): Specifies the kind of cell by specifying a reuse identifier (reuseidentifier) for each cell,

Allows cells to be recovered for reuse when the cell is scrolled out of the screen.

Several methods:

The following two methods in the protocol: Uitableviewdatasource, @required (required), click on command to open the protocol uitableviewdatasource.

Control how many lines there are in a part

-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection: (Nsinteger) section{

return 65; Total number of rows in a section

Control the display of TableView this method is called every time a row is displayed

-(UITableViewCell *) TableView: (UITableView *) TableView Cellforrowatindexpath: (Nsindexpath *) indexpath{

}

Click on a line to execute this method to display the contents of the current line

-(void) TableView: (UITableView *) TableView Didselectrowatindexpath: (Nsindexpath *) indexpath{

}

Control the height of each row (method in Protocol delegate, add protocol Uitableviewdelegate)

-(CGFloat) TableView: (UITableView *) TableView Heightforrowatindexpath: (Nsindexpath *) indexpath{

if (indexpath.row%2==0) {

return 60; That is, the even row height is 60, and the other (odd line) height is 30

}else{//indexpath.row*30 increments by 30 per line

return 30; }

Lan Yi Education TableView, Navigationcontroller,tableviewcontroller