通过apk获取包名，启动类

Question

 public String getPackageName(String filePath) {
        String packageName=null;
        PackageManager packageManager = getPackageManager();
        PackageInfo info = packageManager.getPackageArchiveInfo(filePath, PackageManager.GET_ACTIVITIES);
        if (info != null) {
            ApplicationInfo appInfo = info.applicationInfo;
            packageName = appInfo.packageName;
        }
        return packageName;
    }    public  String getLauncherActivityNameByPackageName(String packageName) {
        String lunchClassName = null;
        Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);//android.intent.action.MAIN
        resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);//android.intent.category.LAUNCHER
        resolveIntent.setPackage(packageName);
        List<ResolveInfo> resolveinfoList = getPackageManager().queryIntentActivities(resolveIntent, 0);
        ResolveInfo resolveinfo = resolveinfoList.iterator().next();
        if (resolveinfo != null) {
            lunchClassName = resolveinfo.activityInfo.name;
        }
        return lunchClassName;
    }

Answer 1

getLaunchIntentForPackage被你吃了？一行代码非让你搞得那么复杂        Intent intent = context.getPackageManager()
                .getLaunchIntentForPackage(mPackageName);
        context.startActivity(intent);