先说下问题和解决方案：
Q：在 3.1 版本以后，新安装而从未启动过的app不能收到系统的广播(启动完成，网络状态变化之类的)；
解决方案：
1. 将app做成系统应用，直接安装在 system/app 目录下
2.
通过第三方应用，发送带 FLAG_INCLUDE_STOPPED_PACKAGES 的广播给stop状态的自己
下文转载自 http://www.cnblogs.com/fanfeng/p/3236178.html ，很好的讲解了这个问题的原因
Android 开机自启动
首先实现开机自启动：
第一步创建一个广播接收者，如MyBootBroadcastReceiver.java
package com.example;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class MyBootBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Intent startServiceIntent = new Intent(context, MyService.class);
context.startService(startServiceIntent);
//启动应用
//Intent intent = getPackageManager().getLaunchIntentForPackage(packageName);
//context.startActivity(intent);
}
}
第二步给receiver配置对应intent-filter
<receiver android:name="MyBootBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
第三步添加权限，缺少这步则无法在Android 3.0及其之前版本上自启动
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
上面的实现有以下【限制】：
1.由于Android系统在外置SD卡加载前广播ACTION_BOOT_COMPLETED，于是如果应用安装在外置SD卡上，它无法接收到此广播，原文见Broadcast
Receivers listening for "boot completed"。
2.从Android 3.1（API level和对应NDK版本）开始，系统的包管理器保持跟踪处于停止状态(stopped
state)的应用程序，提供了一种控制其从后台进程和其它应用程序启动的方式。这种停止状态的应用程序指那些安装了但从未启动过的apk，或被用户在程序管理中force stop的apk。Android系统为防止广播无意或不必要开启停止状态的组件，它给所有广播intent添加了FL??AG_EXCLUDE_STOPPED_PACKAGES标志（不设置和同FLAG_INCLUDE_STOPPED_PACKAGES一起设置结果都是此标志），
public boolean isExcludingStopped() {
return (mFlags&(FLAG_EXCLUDE_STOPPED_PACKAGES|FLAG_INCLUDE_STOPPED_PACKAGES))
== FLAG_EXCLUDE_STOPPED_PACKAGES;
}
/**
* Returns whether the object associated with the given filter is
* "stopped," that is whether it should not be included in the result
* if the intent requests to excluded stopped objects.
*/
protected boolean isFilterStopped(F filter, int userId) {
return false;
}
private void buildResolveList(Intent intent, FastImmutableArraySet<String> categories,
boolean debug, boolean defaultOnly,
String resolvedType, String scheme, F[] src, List<R> dest, int userId) {
...
final boolean excludingStopped = intent.isExcludingStopped();
final int N = src != null ? src.length : 0;
boolean hasNonDefaults = false;
int i;
F filter;
for (i=0; i<N && (filter=src[i]) != null; i++) {
int match;
if (debug) Slog.v(TAG, "Matching against filter " + filter);
if (excludingStopped && isFilterStopped(filter, userId)) {
if (debug) {
Slog.v(TAG, " Filter‘s target is stopped; skipping");
}
continue;
}
...
此标志指广播intent排除停止状态的应用，原文见Launch controls on
stopped applications。用户可以给自己的应用或者后台服务添加FLAG_INCLUDE_STOPPED_PACKAGES标志以唤醒停止状态的应用，但系统自带的广播intent，用户无法修改，只能接受；注意系统级应用都不是停止状态。
PackageManagerService.java中重写IntentResolver
final class ActivityIntentResolver
extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
...
@Override
protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
if (!sUserManager.exists(userId)) return true;
PackageParser.Package p = filter.activity.owner;
if (p != null) {
PackageSetting ps = (PackageSetting)p.mExtras;
if (ps != null) {
// System apps are never considered stopped for purposes of
// filtering, because there may be no way for the user to
// actually re-launch them.
return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
&& ps.getStopped(userId);
}
}
return false;
}
private final class ServiceIntentResolver
extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
...
@Override
protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
if (!sUserManager.exists(userId)) return true;
PackageParser.Package p = filter.service.owner;
if (p != null) {
PackageSetting ps = (PackageSetting)p.mExtras;
if (ps != null) {
// System apps are never considered stopped for purposes of
// filtering, because there may be no way for the user to
// actually re-launch them.
return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
&& ps.getStopped(userId);
}
}
return false;
}