一、设置总开关
1、添加一个开关,控制是否去掉抽屉。
launcher3\src\com\android\launcher3\launcherappstate.java:
public static boolean isDisableAllApps() {
// Returns false on non-dogfood builds.
return android.os.SystemProperties.get("ro.magcomm.launcher3.ishome2","0").equals("1");
}
二、allapp键的加载
在hotseat里面去掉allapp键的加载 ,屏蔽isallappsbuttonrank()占用allapp位置。
1) 不再占用allapp位置
2) 在加载workspace时,会留出hotseat的第三个位置给allapp按钮,若不取消该位置的占用,在hotseat加载时会留出空位。hotseat的初始化在hotseat.java中
launcher3\src\com\android\launcher3\hotseat.java c>isallappsbuttonrank():
public boolean isAllAppsButtonRank(int rank) {
//add by liaoxiaomin begin @{
if (LauncherAppState.isDisableAllApps()) {
return false;
}
//add by liaoxiaomin end @}
return rank == mAllAppsButtonRank;
}
3) home2没有抽屉,所以不需要allapp按钮。在hotseat里面去掉allapp键的加载,在hotseat.java 的void resetlayout()中初始化hotseat布局。在home2时停止加载allapp按钮。
launcher3\src\com\android\launcher3\hotseat.java c>resetlayout():
void resetlayout() {
mcontent.removeallviewsinlayout();
//添加 @{
if(launcherappstate.isdisableallapps()){
//添加 }@
// add the apps button
context context = getcontext();
layoutinflater inflater = layoutinflater.from(context);
textview allappsbutton = (textview)
inflater.inflate(r.layout.all_apps_button, mcontent, false);
drawable d = context.getresources().getdrawable(r.drawable.all_apps_button_icon);
mlauncher.resizeicondrawable(d);
allappsbutton.setcompounddrawables(null, d, null, null);
allappsbutton.setcontentdescription(context.getstring(r.string.all_apps_button_label));
allappsbutton.setonkeylistener(new hotseaticonkeyeventlistener());
if (mlauncher != null) {
mlauncher.setallappsbutton(allappsbutton);
allappsbutton.setontouchlistener(mlauncher.gethapticfeedbacktouchlistener());
allappsbutton.setonclicklistener(mlauncher);
allappsbutton.setonlongclicklistener(mlauncher);
allappsbutton.setonfocuschangelistener(mlauncher.mfocushandler);
}
// note: we do this to ensure that the hotseat is always laid out in the orientation of
// the hotseat in order regardless of which orientation they were added
int x = getcellxfromorder(mallappsbuttonrank);
int y = getcellyfromorder(mallappsbuttonrank);
celllayout.layoutparams lp = new celllayout.layoutparams(x,y,1,1);
lp.canreorder = false;
mcontent.addviewtocelllayout(allappsbutton, -1, allappsbutton.getid(), lp, true);
}
}//别漏了这里的 }
三、数据初始化类中更改hotseat布局
invariantdeviceprofile.java launcher3进行布局初始化的一个类。
在有allapp按钮时hotseat里hotseat图标数量为五个,没有allapp按钮时hotseat图标数量应为四个。
launcher3\src\com\android\launcher3\invariantdeviceprofile.java:
1)先加个宏控
//添加 @{
private boolean hasda = launcherappstate.isdisableallapps();
//添加 }@
2)去掉抽屉时,hotseat的格数为四格,所以不能抛出异常。 ( numhotseaticons 为偶时不抛异常)
invariantdeviceprofile( ):
invariantdeviceprofile(string n, float w, float h, int r, int c, int fr, int fc, int maapc,
// ensure that we have an odd number of hotseat items (since we need to place all apps)
if (hs % 2 == 0&& !hasda) {// 在无抽屉情况下不抛异常
throw new runtimeexception("all device profiles must have an odd number of hotseat spaces");
}
name = n;
... ...
}
3)去掉抽屉的情况下加载不同的布局
getpredefineddeviceprofiles() :
ArrayList<InvariantDeviceProfile> getPredefinedDeviceProfiles() {
ArrayList<InvariantDeviceProfile> predefinedDeviceProfiles = new ArrayList<>();
// width, height, #rows, #columns, #folder rows, #folder columns,
// iconSize, iconTextSize, #hotseat, #hotseatIconSize, defaultLayoutId.
//modify by liaoxiaomin begin
/*predefinedDeviceProfiles.add(new InvariantDeviceProfile("Super Short Stubby",
255, 300, 2, 3, 2, 3, 3, 48, 13, 3, 48, R.xml.default_workspace_4x4));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Shorter Stubby",
255, 400, 3, 3, 3, 3, 3, 48, 13, 3, 48, R.xml.default_workspace_4x4));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Short Stubby",
275, 420, 3, 4, 3, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Stubby",
255, 450, 3, 4, 3, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus S",
296, 491.33f, 4, 4, 4, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 4",
335, 567, 4, 4, 4, 4, 4, DEFAULT_ICON_SIZE_DP, 13, 5, 56, R.xml.default_workspace_4x4));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 5",
359, 567, 4, 4, 4, 4, 4, DEFAULT_ICON_SIZE_DP, 13, 5, 56, R.xml.default_workspace_4x4));*/
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Super Short Stubby",
255, 300, 2, 3, 2, 3, 3, 48, 13, 3, 48, R.xml.default_workspace_4x4));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Shorter Stubby",
255, 400, 3, 3, 3, 3, 3, 48, 13, 3, 48, R.xml.default_workspace_4x4));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Short Stubby",
275, 420, 3, 4, 3, 4, 4, 48, 13, (hasDA ? 4 : 5), 48, (hasDA ? R.xml.default_workspace_4x4_no_all_apps : R.xml.default_workspace_4x4 )));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Stubby",
255, 450, 3, 4, 3, 4, 4, 48, 13, (hasDA ? 4 : 5), 48, (hasDA ? R.xml.default_workspace_4x4_no_all_apps : R.xml.default_workspace_4x4 )));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus S",
296, 491.33f, 4, 4, 4, 4, 4, 48, 13,(hasDA ? 4 : 5), 48, (hasDA ? R.xml.default_workspace_4x4_no_all_apps : R.xml.default_workspace_4x4 )));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 4",
335, 567, 4, 4, 4, 4, 4, DEFAULT_ICON_SIZE_DP, 13, (hasDA ? 4 : 5), 56, (hasDA ? R.xml.default_workspace_4x4_no_all_apps : R.xml.default_workspace_4x4 )));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 5",
359, 567, 4, 4, 4, 4, 4, DEFAULT_ICON_SIZE_DP, 13,(hasDA ? 4 : 5), 56, (hasDA ? R.xml.default_workspace_4x4_no_all_apps : R.xml.default_workspace_4x4 )));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Large Phone",
406, 694, 5, 5, 4, 4, 4, 64, 14.4f, 5, 56, R.xml.default_workspace_5x5));
//modify by liaoxiaomin end
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Large Phone",
406, 694, 5, 5, 4, 4, 4, 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 side
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 7",
575, 904, 5, 6, 4, 5, 4, 72, 14.4f, 7, 60, R.xml.default_workspace_5x6));
// Larger tablet profiles always have system bars on the top & bottom
predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 10",
727, 1207, 5, 6, 4, 5, 4, 76, 14.4f, 7, 64, R.xml.default_workspace_5x6));
predefinedDeviceProfiles.add(new InvariantDeviceProfile("20-inch Tablet",
1527, 2527, 7, 7, 6, 6, 4, 100, 20, 7, 72, R.xml.default_workspace_4x4));
return predefinedDeviceProfiles;
}
4)记得改下 dw_phone_hotseat.xml 的布局 ,因为hotseat只有5格了。
四、将所有应用放在第一层
launcher3加载流程:进入 launcherapplication -> launcherappstate -> 进行初始化环境(通过传递scontext)。进行事件监听&&初始化一些环境。例如:横竖屏、当局语言、像素密度、小部件和快捷图标数据库操作对象、应用图标缓存对象、初始化launchermode等。在初始化过后,从launcher的oncreate方法入手。mmodel.startloader(mworkspace.getrestorepage());里加载数据 。在加载完成所有快捷方式后将其余为加载完的应用布局在第一层。
1) 成所有快捷方式后将其余为加载完的应用布局在第一层。
launcher3\src\com\android\launcher3\launchermodel.java:
launchermodel$loadertask c> run():
public void run() {
synchronized (mLock) {
if (DEBUG_LOADERS) {
LauncherLog.d(TAG, "Set load task running flag >>>>, mIsLaunching = " +
",this = " + this);
}
if (mStopped) {
return;
}
mIsLoaderTaskRunning = true;
}
// Optimize for end-user experience: if the Launcher is up and // running with the
// All Apps interface in the foreground, load All Apps first. Otherwise, load the
// workspace first (default).
keep_running: {
if (DEBUG_LOADERS) Log.d(TAG, "step 1: loading workspace");
loadAndBindWorkspace();
if (mStopped) {
LauncherLog.i(TAG, "LoadTask break in the middle, this = " + this);
break keep_running;
}
waitForIdle();
// second step
if (DEBUG_LOADERS) Log.d(TAG, "step 2: loading all apps");
loadAndBindAllApps();
//add by liaoxiaomin begin @{
if (LauncherAppState.isDisableAllApps()) {
verifyApplications();
}
//add by liaoxiaomin end }@
}
// Clear out this reference, otherwise we end up holding it until all of the
// callback runnables are done.
mContext = null;
synchronized (mLock) {
// If we are still the last one to be scheduled, remove ourselves.
if (mLoaderTask == this) {
mLoaderTask = null;
}
if (DEBUG_LOADERS) {
LauncherLog.d(TAG, "Reset load task running flag <<<<, this = " + this);
}
mIsLoaderTaskRunning = false;
mHasLoaderCompletedOnce = true;
}
}
//add by liaoxiaomin begin
private void verifyApplications() {
final Context context = mApp.getContext();
// Cross reference all the applications in our apps list with items in the workspace
ArrayList<ItemInfo> tmpInfos;
ArrayList<ItemInfo> added = new ArrayList<ItemInfo>();
synchronized (sBgLock) {
for (AppInfo app : mBgAllAppsList.data) {
tmpInfos = getItemInfoForComponentName(app.componentName, app.user);
if (tmpInfos.isEmpty()) {
// We are missing an application icon, so add this to the workspace
added.add(app);
// This is a rare event, so lets log it
Log.e(TAG, "Missing Application on load: " + app);
}
}
}
if (!added.isEmpty()) {
addAndBindAddedWorkspaceItems(context, added);
}
}
//add by liaoxiaomin end
五、有新应用添加时更新workspace
当安装新应用时,我们需要对左面更新,保证安装的应用添加在第一层上。
launcher3\src\com\android\launcher3\launchermodel.java:
launchermodel$packageupdatedtask c> run():
if (added != null) {
// add by liaoxiaomin begin @{
if(LauncherAppState.isDisableAllApps()){
final ArrayList<ItemInfo> addedInfos = new ArrayList<ItemInfo>(added);
addAndBindAddedWorkspaceItems(context, addedInfos);
}else {
// add by liaoxiaomin end }@
addAppsToAllApps(context, added);
}// add by liaoxiaomin
for (AppInfo ai : added) {
addedOrUpdatedApps.put(ai.componentName, ai);
}
}
六、去掉长按时的删除选项
长按时,不该有删除选项 。
deletedroptarget.java: 中更改长按时的监听,开始时直接屏蔽删除按钮,后来发现应用自身发出的快捷方式无法删除 所以做了如下处理。
launcher3\src\com\android\launcher3\deletedroptarget.java c>supportsdrop():
public static boolean supportsDrop(Object info) {
//add by liaoxiaomin begin @{
if (LauncherAppState.isDisableAllApps()) {
if (info instanceof ShortcutInfo) {
ShortcutInfo item = (ShortcutInfo) info;
return item.itemType != LauncherSettings.BaseLauncherColumns.ITEM_TYPE_APPLICATION;
}
return info instanceof LauncherAppWidgetInfo;
}
//add by liaoxiaomin end }@
return (info instanceof ShortcutInfo)
|| (info instanceof LauncherAppWidgetInfo)
|| (info instanceof FolderInfo);
}
七、解决添加新应用后使用产生快捷方式问题
Launcher3/src/com/android/launcher3/LauncherModel.java
if (targetIntent != null && info.user.equals(user)) {
String s = targetIntent.toUri(0);
+ //liaoxiaomin modify for launcher add item 20190514 begin
+ String mTargetComponentName = targetIntent.getComponent().toString();
+ if(intent.getComponent() != null && mTargetComponentName.equals(intent.getComponent().toString())) {
+ return true;
+ }
+ //liaoxiaomin modify for launcher add item 20190514 end
if (intentWithPkg.equals(s) || intentWithoutPkg.equals(s)) {
return true;
}