Android MTK 设置默认启动 Launcher，android 实战 pdf
//Slog.d(TAG,"set default launcher");
final PackageManager mPm = mContext.getPackageManager();
ArrayList<ResolveInfo> homeActivities = new ArrayList<ResolveInfo>();
ComponentName currentDefaultHome = mPm.getHomeActivities(homeActivities);
ComponentName[]mHomeComponentSet = new ComponentName[homeActivities.size()];
for (int i = 0; i < homeActivities.size(); i++) {
final ResolveInfo candidate = homeActivities.get(i);
//Slog.d(TAG,"homeActivities"+candidate);
final ActivityInfo info = candidate.activityInfo;
ComponentName activityName = new ComponentName(info.packageName, info.name);
mHomeComponentSet[i] = activityName;
}
IntentFilter mHomeFilter = new IntentFilter(Intent.ACTION_MAIN);
mHomeFilter.addCategory(Intent.CATEGORY_HOME);
mHomeFilter.addCategory(Intent.CATEGORY_DEFAULT);
List<ComponentName>Activities=new ArrayList();
mPm.replacePreferredActivity(mHomeFilter, IntentFilter.MATCH_CATEGORY_EMPTY,mHomeComponentSet, DefaultLauncher);
/**
set default launcher end
*/
Intent intent = getHomeIntent();
ActivityInfo aInfo =
resolveActivityInfo(intent, STOCK_PM_FLAGS, userId);
...... PS：
二、如果预置了 GMS，上面和下面合并,还需要按照下面的方法修改：
请找到 PackageManagerService.java 的 systemReady 方法，在这个方法的最后增加以下示例代码：
if(isFirstBoot()) {
String examplePackageName = "com.android.launcher"; //请修改为需要设置的 package name
String exampleActivityName = "com.android.launcher2.Launcher"; //请修改为需要设置的 launcher activity name
Intent intent=new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
final int callingUserId = UserHandle.getCallingUserId();
List<ResolveInfo> resolveInfoList = queryIntentActivities(intent,null, PackageManager.GET_META_DATA,callingUserId);
if(resolveInfoList != null){
int size = resolveInfoList.size();
for(int j=0;j<size;){
final ResolveInfo r = resolveInfoList.get(j);
if(!r.activityInfo.packageName.equals(examplePackageName)){
resolveInfoList.remove(j);
size -= 1;
}else
{
j++;
}
}
ComponentName[] set = new ComponentName[size];
ComponentName defaultLauncher=new ComponentName(examplePackageName, exampleActivityName);
int defaultMatch=0;
for(int i=0;i<size;i++){
final ResolveInfo resolveInfo = resolveInfoList.get(i);
Log.d(TAG, resolveInfo.toString());
set[i] = new ComponentName(resolveInfo.activityInfo.packageName,resolveInfo.activityInfo.name);
if(defaultLauncher.getClassName().equals(resolveInfo.activityInfo.name)){
defaultMatch = resolveInfo.match;
}
}
Slog.e(TAG,"defaultMatch="+Integer.toHexString(defaultMatch));
IntentFilter filter=new IntentFilter();
filter.addAction(Intent.ACTION_MAIN);
filter.addCategory(Intent.CATEGORY_HOME);
filter.addCategory(Intent.CATEGORY_DEFAULT);
addPreferredActivity2(filter, defaultMatch, set, defaultLauncher);
}
//MTK ADD END
}
在 PackageManagerService.java 中增加 addPreferredActivity2 方法：
public void addPreferredActivity2(IntentFilter filter, int match,ComponentName[] set, ComponentName activity) {
synchronized (mPackages) {
filter.dump(new LogPrinter(Log.INFO, TAG), " ");
mSettings.editPreferredActivitiesLPw(0).addFilter(new PreferredActivity(filter, match, set, activity, true));
scheduleWriteSettingsLocked();
}
}
请修改 PackageManagerService.java 的 findPreferredActivity 方法，将以下代码：
if (removeMatches) {
pir.removeFilter(pa);
if (DEBUG_PREFERRED) {
Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
}
break;
}
// Okay we found a previously set preferred or last chosen app.
// If the result set is different from when this
// was created, we need to clear it and re-ask the
// user their preference, if we're looking for an "always" type entry.
if (always && !pa.mPref.sameSet(query, priority)) {
Slog.i(TAG, "Result set changed, dropping preferred activity for "
intent + " type " + resolvedType);
if (DEBUG_PREFERRED) {
Slog.v(TAG, "Removing preferred activity since set changed "
pa.mPref.mComponent);
}
pir.removeFilter(pa);
// Re-add the filter as a "last chosen" entry (!always)
PreferredActivity lastChosen = new PreferredActivity(
pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
pir.addFilter(lastChosen);
mSettings.writePackageRestrictionsLPr(userId);
return null;
}
修改为：
if(!(intent.getAction() != null && intent.getAction().equals(intent.ACTION_MAIN) && intent.getCategories()!=null &&
intent.getCategories().contains(intent.CATEGORY_HOME))) { //MTK ADD
Slog.d(TAG,"launcher");
}else {
if (removeMatches) {
pir.removeFilter(pa);
if (DEBUG_PREFERRED) {
Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
}
break;
}
}
// Okay we found a previously set preferred or last chosen app.
// If the result set is different from when this
// was created, we need to clear it and re-ask the
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