How to create a new Widget with a button?

[dragonzhang]

hi:

my LCD size is 240x320。

when uGFX power on，I created a Widget  with only two buttons。

When a user clicks on different buttons, there will be different Widget (full screen).

but，I dont`t know how to create a new Widget with a button click event!

 

tks

 

 

[Joel Bodenmann]

Well, just call gwinXxxCreate() to create your widget when you receive the button press/release event.

However, this is usually bad practice. When you have enough resources (mainly talking about RAM) you create all the widgets you need during startup/initialization and then you just use gwinShow() and gwinHide() to display the widgets correctly. The handling of touch inputs and so on is all handled through the GWIN visibility and enabled state.

[dragonzhang]

tks!

I used Menu sample code! 

when i create new Widget , label can`t display on lcd.

if i mask "gwinLabelSetAttribute(ghLabelLcdBlTime, 100, ""); " ,the label can show .  

GWidgetInit wi; // Apply some default values for GWIN    
gwinWidgetClearInit(&wi);    
wi.g.show = TRUE;    // Create the IP label    
wi.g.width = 200; 
wi.g.height = 20; 
wi.g.x = 10, 
wi.g.y = 100;    
wi.text = "192.168.1.42";    
ghLabelLcdBlTime = gwinLabelCreate(0, &wi); 
gwinLabelSetAttribute(ghLabelLcdBlTime, 100, "");   

 

[dragonzhang]

I create all the widgets during startup/initialization .

    ghTabset            = gwinTabsetCreate(0, &wi, GWIN_TABSET_BORDER);
    ghPgSetting            = gwinTabsetAddTab(ghTabset, "tab1", FALSE);
    ghPgVersion            = gwinTabsetAddTab(ghTabset, "tab2", FALSE);

I want to show tab1 only, tab2 hide. but can`t work use follow code.

gwinShow(ghPgSetting);
gwinHide(ghPgVersion);

[Joel Bodenmann]

When using the tabset widget you should use the tabset widget high level API. There's gwinTabsetSetTab() for that. There are more goodies that you can find in the API documentation.