package com.example.chenrui.app1;

import android.content.BroadcastReceiver;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.net.wifi.WifiManager;

import android.support.v4.content.LocalBroadcastManager;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    private BroadcastReceiver receiver;

    private LocalBroadcastManager manager;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        IntentFilter filter = new IntentFilter();

        filter.addAction("com.example.chenrui.app1.broadcast2");

        receiver = new BroadcastReceiver() {

            @Override

            public void onReceive(Context context, Intent intent) {

                String key = intent.getStringExtra("key");

                Toast.makeText(context, "接收广播2,key:" + key, Toast.LENGTH_SHORT).show();

            }

        };

        manager = LocalBroadcastManager.getInstance(this);

        manager.registerReceiver(receiver,filter);

        Button button = findViewById(R.id.button1);

        button.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent intent = new Intent("com.example.chenrui.app1.broadcast2");

                intent.putExtra("key","hello world");

                manager.sendBroadcast(intent);

            }

        });

    }

    @Override

    protected void onDestroy() {

        super.onDestroy();

        manager.unregisterReceiver(receiver);

    }

}