如果你看到这篇文章 相信你已经在适配8.0 各种莫名其妙的bug苦恼
笔者在适配8.0发现,xml注册的静态广播无法接收
先说明问题出现的根本原因
google官方文档
https://developer.android.com/guide/components/broadcasts.html#receiving_broadcasts
Beginning with Android 8.0 (API level 26), the system imposes additional restrictions on manifest-declared receivers.
If your app targets API level 26 or higher, you cannot use the manifest to declare a receiver for most implicit broadcasts (broadcasts that do not target your app specifically).
解释一下
在Android 8.0 及以上 在xml中注册的广播,在接收的时候收到了额外的限制,如果你的app目标等级是26及以上,将无法接收到xml注册的广播
这是google 为了app注册的静态广播导致耗电加的限制
既然google已经都这么规定了,想反抗是万万不能的,但是解决办法还是有的
办法一:
使用动态广播registerReceiver注册形式,这个不受限制(推荐)
办法二:
gradle 中的targetSdkVersion 设置小于26
附上 查询已经注册的Receiver code
PackageManager pm = getPackageManager();
List<ResolveInfo> resolveInfos = pm.queryBroadcastReceivers(intent, 0);
for (int i = 0; i < resolveInfos.size(); i++) {
Log.e("resolveInfos","resolveInfos---"+resolveInfos.get(i).toString());
}
更新一波,一种静态注册可行办法
指定broadcast 接收
Intent intent = new Intent();
intent.setAction("test");
intent.setComponent(new ComponentName(MainActivity.this, MyBroadcastReceiver.class));
sendBroadcast(intent);
接收代码
public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.e("action", action + "");
}
最后xml静态注册
<receiver android:name=".MyBroadcastReceiver"></receiver>
这种方式 可以静态的指定的BroadcastReceiver接收 ..
