重庆网站建设 微客巴巴/seo招聘职责

Launcher3桌面的行数和列数是动态计算的,如何修改?

Launcher3桌面的行数和列数都是在InvariantDeviceProfile.java和DeviceProfile.java中动态计算的,xml中无法配置。
Note:L版本无InvariantDeviceProfile.java,是DynamicGrid.java,但是计算方法都是一样的。
InvariantDeviceProfile中用InvariantDeviceProfile来配置各种屏幕的手机桌面。如下:

public DynamicGrid(Context context, Resources resources,int minWidthPx, int minHeightPx,int widthPx, int heightPx,int awPx, int ahPx) {DisplayMetrics dm = resources.getDisplayMetrics();ArrayList<DeviceProfile> deviceProfiles =new ArrayList<DeviceProfile>();boolean hasAA = !LauncherAppState.isDisableAllApps();DEFAULT_ICON_SIZE_PX = pxFromDp(DEFAULT_ICON_SIZE_DP, dm);
// Our phone profiles include the bar sizes in each orientationdeviceProfiles.add(new DeviceProfile("Super Short Stubby",255, 300,  2, 3,  48, 13, (hasAA ? 3 : 5), 48, R.xml.default_workspace_4x4));deviceProfiles.add(new DeviceProfile("Shorter Stubby",255, 400,  3, 3,  48, 13, (hasAA ? 3 : 5), 48, R.xml.default_workspace_4x4));deviceProfiles.add(new DeviceProfile("Short Stubby",275, 420,  3, 4,  48, 13, (hasAA ? 5 : 5), 48, R.xml.default_workspace_4x4));deviceProfiles.add(new DeviceProfile("Stubby",255, 450,  3, 4,  48, 13, (hasAA ? 5 : 5), 48, R.xml.default_workspace_4x4));deviceProfiles.add(new DeviceProfile("Nexus S",296, 491.33f,  4, 4,  48, 13, (hasAA ? 5 : 5), 48, R.xml.default_workspace_4x4));
/// M: add 294 X 460 profiledeviceProfiles.add(new DeviceProfile("294 X 460",294, 460,  4, 4,  50.34943f, 13, (hasAA ? 5 : 4), 49.566288f, R.xml.default_workspace_4x4));deviceProfiles.add(new DeviceProfile("Nexus 4",335, 567,  4, 4,  DEFAULT_ICON_SIZE_DP, 13, (hasAA ? 5 : 5), 56, R.xml.default_workspace_4x4));deviceProfiles.add(new DeviceProfile("Nexus 5",359, 567,  4, 4,  DEFAULT_ICON_SIZE_DP, 13, (hasAA ? 5 : 5), 56, R.xml.default_workspace_4x4));deviceProfiles.add(new DeviceProfile("Large Phone",406, 694,  5, 5,  64, 14.4f,  5, 56, R.xml.default_workspace_5x5));
// The tablet profile is odd in that the landscape orientation// also includes the nav bar on the sidedeviceProfiles.add(new DeviceProfile("Nexus 7",575, 904,  5, 6,  72, 14.4f,  7, 60, R.xml.default_workspace_5x6));// Larger tablet profiles always have system bars on the top & bottomdeviceProfiles.add(new DeviceProfile("Nexus 10",727, 1207,  5, 6,  76, 14.4f,  7, 64, R.xml.default_workspace_5x6));deviceProfiles.add(new DeviceProfile("20-inch Tablet",1527, 2527,  7, 7,  100, 20,  7, 72, R.xml.default_workspace_4x4));
mMinWidth = dpiFromPx(minWidthPx, dm);mMinHeight = dpiFromPx(minHeightPx, dm);mProfile = new DeviceProfile(context, deviceProfiles,mMinWidth, mMinHeight,widthPx, heightPx,awPx, ahPx,resources);}

配置名字(任意定义)、最小宽度(单位是dp)、最小高度(单位是dp)、桌面行数、桌面列数、文件夹行数、文件夹列数、主菜单中predicted apps最小列数、桌面Icon的size(单位是dp)、桌面Icon的文字size(单位是dp)、Hotseat的Icon个数、Hotseat的Icon的size(单位是dp)、默认的桌面配置LayoutId。