AndroidManifast.xml

 

activity_main.xml

 

MainActivity.java

package com.hanqi.testbr;import android.content.Intent;import android.content.IntentFilter;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 bt1_click(View v)    {        //发送一般广播        //1.准备意图Intent        Intent intent = new Intent("com.hanqi.textbr.action");        intent.putExtra("data","广播发出了");        //2.发送        sendBroadcast(intent);        Toast.makeText(MainActivity.this, "我发送了广播", Toast.LENGTH_SHORT).show();    }    public void bt2_click(View v)    {        //发送有序广播        //1.准备意图Intent        Intent intent = new Intent("com.hanqi.textbr.action");        intent.putExtra("data", "有序广播发出了");        //2.发送        sendOrderedBroadcast(intent, null);        Toast.makeText(MainActivity.this, "我发送了有序广播", Toast.LENGTH_SHORT).show();    }    MyReceiver2 myReceiver2;    public void bt3_onclick(View v)    {        if (myReceiver2 == null) {            //动态注册            //1.实例化接收器            myReceiver2 = new MyReceiver2();            //2.实例化IntentFilter            IntentFilter intentFilter = new IntentFilter("com.hanqi.textbr.action");            intentFilter.setPriority(1000);            //3.注册            registerReceiver(myReceiver2, intentFilter);        }    }    public void bt4_onclick(View v)    {        //解注册        if (myReceiver2 != null) {            unregisterReceiver(myReceiver2);            myReceiver2 = null;            Toast.makeText(MainActivity.this, "解注册接收器", Toast.LENGTH_SHORT).show();        }    }    @Override    protected void onDestroy() {        super.onDestroy();        if (myReceiver2 != null) {            unregisterReceiver(myReceiver2);            myReceiver2 =null;            //Toast.makeText(MainActivity.this, "解注册接收器", Toast.LENGTH_SHORT).show();        }    }}

 

MyReceiver.java

package com.hanqi.testbr;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.util.Log;import android.widget.Toast;public class MyReceiver extends BroadcastReceiver {    public MyReceiver() {        Log.e("ATG","构造广播接收器");    }    @Override    public void onReceive(Context context, Intent intent) {        String str = intent.getStringExtra("data");        // 处理广播        Log.e("ATG","收到广播了 = "+str);        Toast.makeText(context, "收到广播了 = "+str, Toast.LENGTH_SHORT).show();        //是否是有序广播        if (isOrderedBroadcast())        {            abortBroadcast();            Log.e("ATG", "我阻断了有序广播");            Toast.makeText(context, "我阻断了有序广播", Toast.LENGTH_SHORT).show();        }    }}

 

MyReceiver2.java

package com.hanqi.testbr;

import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.util.Log;public class MyReceiver2 extends BroadcastReceiver {    public MyReceiver2() {        Log.e("ATG","构造广播接收器2");    }    @Override    public void onReceive(Context context, Intent intent) {        String str = intent.getStringExtra("data");        // 处理广播        Log.e("ATG","收到广播了2 = "+str);    }}