发送有序广播

Memory1123

于 2017-06-15 20:15:44 发布

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CC 4.0 BY-SA版权

文章标签： android

本文链接：https://blog.youkuaiyun.com/Memory1123/article/details/73302164

本文介绍了一个简单的Android应用实例，该应用通过点击按钮发送有序广播，并展示了如何使用自定义的广播接收器来接收这些广播事件。

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本次实验为设计发送有序广播，单击“发送有序广播”按钮，发出一条广播事件
运行效果图
这里写图片描述
实现代码

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/stitch_one"
    tools:context="cn.edu.bzu.orderbroadcast.MainActivity">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="80dp"
        android:onClick="send"
        android:text="发送有序广播"
        android:paddingLeft="5dp"
        android:paddingRight="5dp"
        android:background="#FBFBFF"
        android:textSize="20sp"/>
</RelativeLayout>

package cn.edu.bzu.orderbroadcast;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    public void send(View view){
        Intent intent=new Intent();
        intent.setAction("Intercept_Stitch");
        sendOrderedBroadcast(intent,null);
        Toast.makeText(this,"发送成功",Toast.LENGTH_SHORT).show();
    }
}

package cn.edu.bzu.orderbroadcast;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class MyBroadcastReceiverOne extends BroadcastReceiver {
    public MyBroadcastReceiverOne() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO: This method is called when the BroadcastReceiver is receiving
        // an Intent broadcast.
        Log.i("MyBroadcastReceiverOne","自定义的广播接收者One，接收到了广播事件");
    }
}

package cn.edu.bzu.orderbroadcast;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class MyBroadcastReceiverThree extends BroadcastReceiver {
    public MyBroadcastReceiverThree() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO: This method is called when the BroadcastReceiver is receiving
        // an Intent broadcast.
        Log.i("MyBroadcastReceiverThre","自定义的广播接收者Thre，接收到了广播事件");
    }
}

package cn.edu.bzu.orderbroadcast;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class MyBroadcastReceiverTwo extends BroadcastReceiver {
    public MyBroadcastReceiverTwo() {
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO: This method is called when the BroadcastReceiver is receiving
        // an Intent broadcast.
        Log.i("MyBroadcastReceiverTwo","自定义的广播接收者Two，接收到了广播事件");
    }
}