在设备启动时将数据从android活动传递到广播接收器

Question

I always get bundle value null when I pass data from activity to broadcast receiver. My receiver will start on boot up.

This is the code in my activity class

Intent intent= new Intent();
intent.setAction("android.intent.action.BOOT_COMPLETED");
intent.putExtra("test", "test");    
sendBroadcast(intent);

This is the code in my receiver class:

String testValue = intent.getStringExtra("test");

Answer 1

Your code in activity will never be called upon booting up. System invokes onReceive() with its own intent. You can check this by putting some logs in activity code - this log will not be printed in logcat.