[移动开发]动态注册广播监听发送通知

先看效果图

1.注册和发送广播活动
BroadActivity.java

public class BroadActivity extends AppCompatActivity {

    private Button btnSendBroad;

    MyBroadCast broadCast;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_broad);

        btnSendBroad = (Button)findViewById(R.id.btn_sendBroadCast);

        /**注册动态广播**/
        broadCast = new MyBroadCast();

        IntentFilter intentFilter  = new IntentFilter();
        intentFilter.addAction("com.areyouok.xiaomi");
        registerReceiver(broadCast, intentFilter);

        btnSendBroad.setOnClickListener(view -> {
            Fruit fruit = new Fruit("苹果", 8, "山东");
            Gson gson = new Gson();
            String strFruit = gson.toJson(fruit);
            Intent intent = new Intent("com.areyouok.xiaomi");
            intent.putExtra("fruit", strFruit);
            sendBroadcast(intent);
        });
    }

    class MyBroadCast extends BroadcastReceiver{

        @Override
        public void onReceive(Context context, Intent intent) {

            NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

            Gson gson = new Gson();
            Fruit fruit = gson.fromJson(intent.getStringExtra("fruit"), new TypeToken<Fruit>(){}.getType());

            if(Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O){
                NotificationChannel notificationChannel = new NotificationChannel("myChannelId","channelname"
                        ,NotificationManager.IMPORTANCE_HIGH);
                manager.createNotificationChannel(notificationChannel);
            }

            Bundle bundle = new Bundle();
            bundle.putSerializable("apple", new Apple("富士", 45, false));
            PendingIntent intent1 = PendingIntent.getActivity(context,0, IntentExtraClassActivity.createIntent(context, bundle), 0);

            Notification notification = new NotificationCompat.Builder(context,"myChannelId")
                    .setContentTitle(fruit.fruitName)
                    .setContentText("水果的价格： "+fruit.fruitPrice+"元/斤    "+"水果产地： "+fruit.fruitAddress)
                    .setWhen(System.currentTimeMillis())
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setLargeIcon(BitmapFactory.decodeResource(getResources(),R.mipmap.ic_launcher))
                    .setContentIntent(intent1)
                    .build();
            manager.notify(1,notification);
        }
    }

    class Fruit {
        private String fruitName;
        private int fruitPrice;
        private String fruitAddress;

        public Fruit(String name, int price, String address){
            this.fruitName = name;
            this.fruitPrice = price;
            this.fruitAddress = address;
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(broadCast);
    }
}

2. 点击通知跳转到指定活动界面

public class IntentExtraClassActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_intent_extra_class);
        Intent intent = getIntent();
        Bundle bundle = intent.getBundleExtra("jump");
        Apple apple = (Apple)bundle.getSerializable("apple");
        Button button = (Button)findViewById(R.id.btn_get_apple);
        Log.d("aaaaaa", apple.getType());
        button.setOnClickListener(view -> {
            Toast.makeText(IntentExtraClassActivity.this,apple.getType(), Toast.LENGTH_SHORT).show();

        });


    }

    public static Intent createIntent(Context context, Bundle bundle){
        Intent intent = new Intent(context, IntentExtraClassActivity.class);
        intent.putExtra("jump", bundle);
        return intent;
    }
}

3.苹果数据类

public class Apple implements Serializable {

    private String type;
    private int price;
    private boolean nothing;

    public Apple(String t, int p, boolean n) {
        this.type = t;
        this.price = p;
        this.nothing = n;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public int getPrice() {
        return price;
    }

    public void setPrice(int price) {
        this.price = price;
    }

    public boolean isNothing() {
        return nothing;
    }

    public void setNothing(boolean nothing) {
        this.nothing = nothing;
    }
}