Android N 插件 在获取PackageInfo.activies = null 7.0之前的版本都无此问题

[VidicLee]

try {
PackageInfo packageInfo = pm.getPackageInfo(context.getPackageName(), PackageManager.GET_ACTIVITIES);
if(packageInfo.activities==null){
此处为空，找了很久始终没有解决方案
return null;
}
for (ActivityInfo ai : packageInfo.activities) {
if ((name+hideName).equals(ai.nonLocalizedLabel)) {
activityInfo = ai;
break;
}
}
} catch (Exception e) {
e.printStackTrace();
}

[ghost]

我是在PluginPackageParser里面的getPackageInfo方法里面在调用generatePackageInfo之前，加以下代码：
// Add for getPackageInfo return error result in Nougat @{
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M) {
UserManager userManager = (UserManager) mHostContext.getSystemService(Context.USER_SERVICE);
boolean isUserUnlockingOrUnlocked = (boolean) MethodUtils.invokeMethod(userManager, "isUserUnlockingOrUnlocked", new Object[]{0});
if (isUserUnlockingOrUnlocked) {
flags |= PackageManager.MATCH_DIRECT_BOOT_AWARE | PackageManager.MATCH_DIRECT_BOOT_UNAWARE;
} else {
flags |= PackageManager.MATCH_DIRECT_BOOT_AWARE;
}

    }
    // @}

[ifeegoo]

@VidicLee 你提出的代码中

try {
PackageInfo packageInfo = pm.getPackageInfo(context.getPackageName(), PackageManager.GET_ACTIVITIES);
if(packageInfo.activities==null){
此处为空，找了很久始终没有解决方案
return null;
}

有一种情况，packageInfo.activities==null 是成立的，有少数系统级的应用（或者第三方应用）是可能会出现没有任何 Activity 的。可能你 Android 7.0 版本设备中有这种应用。

我遇到过在 Nexus 5X Android 7.1.1 版本下有一个系统级应用：
/system/priv-app/GoogleExtServices/GoogleExtServices.apk 看看配置文件：

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<manifest xmlns:android="http:https://schemas.android.com/apk/res/android" xmlns:androidprv="http:https://schemas.android.com/apk/prv/res/android" coreApp="true" package="android.ext.services" platformBuildVersionCode="25" platformBuildVersionName="7.1.1">
    <application android:label="@string/app_name" defaultToDeviceProtectedStorage="true" directBootAware="true">
        <library android:name="android.ext.services"/>
        <service android:exported="true" android:label="@string/notification_ranker" android:name="android.ext.services.notification.Ranker" android:permission="android.permission.BIND_NOTIFICATION_RANKER_SERVICE">
            <intent-filter>
                <action android:name="android.service.notification.NotificationRankerService"/>
            </intent-filter>
        </service>
    </application>
</manifest>

里面是没有任何的 Activity 的，可以留意下这种情况。

[Bourneer]

Add flags of PackageManager.MATCH_DIRECT_BOOT_AWARE and PackageManager.MATCH_DIRECT_BOOT_UNAWARE while calling queryIntentActivities.
i.e.
before adding(for Android M or lower version):
final List launchers = pms.queryIntentActivities(launcherIntent,
null,
PackageManager.GET_INTENT_FILTERS,
userId).getList();

In Android N or later version:
final List launchers = pms.queryIntentActivities(launcherIntent,
null,
PackageManager.GET_INTENT_FILTERS
| PackageManager.MATCH_DIRECT_BOOT_AWARE
| PackageManager.MATCH_DIRECT_BOOT_UNAWARE,
userId).getList();