关于android8.0静态接收广播

android8.0很多广播不能静态注册接受

查看log显示 Background execution not allowed: receiving

查看代码frameworks/base/services/core/java/com/android/server/am/BroadcastQueue.java

            if (!skip) {
                final int allowed = mService.getAppStartModeLocked(
                        info.activityInfo.applicationInfo.uid, info.activityInfo.packageName,
                        info.activityInfo.applicationInfo.targetSdkVersion, -1, true, false);
                if (allowed != ActivityManager.APP_START_MODE_NORMAL) {
                    // We won't allow this receiver to be launched if the app has been
                    // completely disabled from launches, or it was not explicitly sent
                    // to it and the app is in a state that should not receive it
                    // (depending on how getAppStartModeLocked has determined that).
                    if (allowed == ActivityManager.APP_START_MODE_DISABLED) {
                        Slog.w(TAG, "Background execution disabled: receiving "
                                + r.intent + " to "
                                + component.flattenToShortString());
                        skip = true;
                    } else if (((r.intent.getFlags()&Intent.FLAG_RECEIVER_EXCLUDE_BACKGROUND) != 0)
                            || (r.intent.getComponent() == null
                                && r.intent.getPackage() == null
                                && ((r.intent.getFlags()
                                        & Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND) == 0)
                                && !isSignaturePerm(r.requiredPermissions))) {
                        mService.addBackgroundCheckViolationLocked(r.intent.getAction(),
                                component.getPackageName());
                        Slog.w(TAG, "Background execution not allowed: receiving "
                                + r.intent + " to "
                                + component.flattenToShortString());
                        skip = true;
                    }
                }
            }

所以我们要发送能静态注册接受的广播可以设置ComponentName,PackageName,或者设置FLAG_RECEIVER_INCLUDE_BACKGROUND 这个标志位

设置ComponentName,PackageName就只有指定的应用能接受这个广播,

 

/**
 *
 * @hide
 */
public static final int FLAG_RECEIVER_INCLUDE_BACKGROUND = 0x01000000;

这个FLAG是hide的,所以我们能设置intent.addFlags(0x01000000);去让广播能静态注册接受.