请问用模拟器分辨率很低是怎么回事？

Cocos2d-x
#1

我设置的是1280720分辨率，然而实际上只有600多400多左右，请问这是怎么回事？谢谢
这是我的config.json文件，
{
“init_cfg”: {
“isLandscape”: true,
“isWindowTop”: false,
“name”: “CocosLuaGame3”,
“width”: 1280,
“height”: 720,
“entry”: “src/main.lua”,
“consolePort”: 6010,
“uploadPort”: 6020,
“debugPort”: 10000,
“forwardConsolePort”: 10089,
“forwardUploadPort”: 10091
},
“simulator_screen_size”:
{
“title”: “iPhone 3Gs (480x320)”,
“width”: 480,
“height”: 320
},
{
“title”: “iPhone 4 (960x640)”,
“width”: 960,
“height”: 640
},
{
“title”: “iPhone 5 (1136x640)”,
“width”: 1136,
“height”: 640
},
{
“title”: “iPad (1024x768)”,
“width”: 1024,
“height”: 768
},
{
“title”: “iPad Retina (2048x1536)”,
“width”: 2048,
“height”: 1536
},
{
“title”: “Android (800x480)”,
“width”: 800,
“height”: 480
},
{
“title”: “Android (854x480)”,
“width”: 854,
“height”: 480
},
{
“title”: “Android (1280x720)”,
“width”: 1280,
“height”: 720
},
{
“title”: “Android (1920x1080)”,
“width”: 1920,
“height”: 1080
}
]
}

#2

可以对照模拟器菜单看一下，分辨率是多少。我这个是Mac的截图，供你参考。