放好接收，直到开始的活动结束

Question

In the onReceive(), I want to create a new Intent and start a new Activity. After the activity finishes, I want to get back to the same line from where I left for the activity. I know that I cannot use BroadcastReceiver class for achieving this. How can this be achieved? Below is the onReceive() code:

final BroadcastReceiver mPairingRequestRecevier = new BroadcastReceiver()
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        if (BluetoothDevice.ACTION_PAIRING_REQUEST.equals(intent.getAction()))
        {
            final BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
            int type = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, BluetoothDevice.ERROR);

            if (type == BluetoothDevice.PAIRING_VARIANT_PIN)
            {
                abortBroadcast();
                String passkey="hey";
                Intent passkeyIntent = new Intent(context.getApplicationContext(),TestActivity.class);
                passkeyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                passkeyIntent.putExtra("passkey",passkey);
                context.startActivity(passkeyIntent);
                Log.d("after returning...",passkey);

            }
            else
            {
                Log.d("Unexpected pairingtype:" , type+"");
            }
        }
    }
};

Any idea that can achieve this would be appreciated.

Answer 1

您可以使用startActivityFor result而不是startActivity来启动活动。使其执行一些任务，然后将结果返回到先前的活动。看一下： 如何在Android上管理`startActivityForResult`？