设置客户app为默认launcher

diff --git a/core/java/com/android/internal/app/ResolverActivity.java b/core/java/com/android/internal/app/ResolverActivity.java
index fadc159..c87f399 100644
--- a/core/java/com/android/internal/app/ResolverActivity.java
+++ b/core/java/com/android/internal/app/ResolverActivity.java
@@ -100,6 +100,7 @@
 import java.util.List;
 import java.util.Objects;
 import java.util.Set;
+import android.content.pm.IPackageManager;
 
 
 /**
@@ -378,6 +379,11 @@
         // turn this off when running under voice interaction, since it results in
         // a more complicated UI that the current voice interaction flow is not able
         // to handle. We also turn it off when the work tab is shown to simplify the UX.
+   if(mResolvingHome){
+            setDefaultLauncher();
+            finish();
+            return;
+        }
         boolean filterLastUsed = mSupportsAlwaysUseOption && !isVoiceInteraction()
                 && !shouldShowTabs();
         mMultiProfilePagerAdapter = createMultiProfilePagerAdapter(initialIntents, rList, filterLastUsed);
@@ -2144,4 +2150,84 @@
     }
 
     protected void maybeLogProfileChange() {}
+
+private void setDefaultLauncher() {
+        // get default component
+       
+        String packageName = "com.handiquilter.reality";//默认launcher包名
+        String className = "com.handiquilter.reality.HomeActivity";// "com.tkmk.bikeshell.MainActivity";//默认launcher入口
+        IPackageManager pm = ActivityThread.getPackageManager();
+        //判断指定的launcher是否存在
+        Slog.d(TAG, "27513 wancg hasApkInstalled(packageName)======== "+hasApkInstalled(packageName));
+        if (hasApkInstalled(packageName)) {
+            Slog.i(TAG, "  wancg defautl packageName = " + packageName + ", default className = " + className);
+
+            //清除当前默认launcher
+            ArrayList<IntentFilter> intentList = new ArrayList<IntentFilter>();
+            ArrayList<ComponentName> cnList = new ArrayList<ComponentName>();
+            getPackageManager().getPreferredActivities(intentList, cnList, null);
+            IntentFilter dhIF = null;
+            for (int i = 0; i < cnList.size(); i++) {
+                dhIF = intentList.get(i);
+                if (dhIF.hasAction(Intent.ACTION_MAIN) && dhIF.hasCategory(Intent.CATEGORY_HOME)) {
+                   getPackageManager().clearPackagePreferredActivities(cnList.get(i).getPackageName());
+                }
+            }
+            //获取所有launcher activity
+         final Intent intent = makeMyIntent();
+            List<ResolveInfo> list = new ArrayList<ResolveInfo>();
+list = getPackageManager().queryIntentActivities(intent,0);
+           // try {
+               // list = pm.queryIntentActivities(intent,
+                //        intent.resolveTypeIfNeeded(mContext.getContentResolver()),
+                //        PackageManager.MATCH_DEFAULT_ONLY, UserHandle.USER_SYSTEM).getList();
+           // } catch (RemoteException e) {
+//Slog.d(TAG, "27492 wancg e========= "+e.toString());
+               // throw new RuntimeException("Package manager has died", e);
+           // }
+            // get all components and the best match
+            IntentFilter filter = new IntentFilter();
+            filter.addAction(Intent.ACTION_MAIN);
+            filter.addCategory(Intent.CATEGORY_HOME);
+            filter.addCategory(Intent.CATEGORY_DEFAULT);
+            final int N = list.size();
+            Slog.d(TAG, "27500 wancglist.size()======== "+N);
+            //设置默认launcher
+            ComponentName launcher = new ComponentName(packageName, className);
+            ComponentName[] set = new ComponentName[N];
+            int defaultMatch = 1;
+            for (int i = 0; i < N; i++) {
+                ResolveInfo r = list.get(i);
+                set[i] = new ComponentName(r.activityInfo.packageName, r.activityInfo.name);
+                Slog.d(TAG, "wancg r.activityInfo.packageName======= " + r.activityInfo.packageName);
+                Slog.d(TAG, "wancg launcher.getClassName()========= " + launcher.getClassName()+"defaultMatch="+defaultMatch);
+            Slog.d(TAG, "wancg r.activityInfo.name========= " + r.activityInfo.name);
+                if (launcher.getClassName().equals(r.activityInfo.name)) {
+            Slog.d(TAG, "275555 wancg r.match========= " + r.match);
+                    defaultMatch = r.match;
+                }
+            }
+            try {
+            Slog.d(TAG, "27513 wancg r.activityInfo.name========= "+defaultMatch);
+                pm.addPreferredActivity(filter, defaultMatch, set, launcher, UserHandle.USER_SYSTEM);
+            } catch (RemoteException e) {
+            Slog.d(TAG, "27519 wancg e========= "+e.toString());
+                throw new RuntimeException("Package manager has died", e);
+            }
+        }
+    }
+
+
+
+    private boolean hasApkInstalled(String packageName) {
+        if (packageName == null || "".equals(packageName))
+            return false;
+        android.content.pm.ApplicationInfo info = null;
+        try {
+            info = getPackageManager().getApplicationInfo(packageName, 0);
+            return info != null;
+        } catch (PackageManager.NameNotFoundException e) {
+            return false;
+        }
+    }
 }