android的粘性廣播，是指廣播接收器一注冊(cè)馬上就能接收到廣播的一種機(jī)制，當(dāng)然首先系統(tǒng)要存在廣播。而普通廣播就是要先注冊(cè)廣播接收器，然后廣播被發(fā)送到系統(tǒng)，廣播接收器才能接收到廣播。
所以他們的區(qū)別是：
粘性廣播調(diào)用registerReceiver能馬上接受廣播，而普通廣播不行。

對(duì)于粘性廣播：
1.系統(tǒng)首先存在粘性廣播

sendStickyBroadcast(Intent intent)

2.注冊(cè)廣播接收器

registerReceiver(BroadcastReceiver receiver, IntentFilter filter)

3.處理廣播

        public void onReceive(android.content.Context context, Intent intent) {

        };

下面用一個(gè)例子展示下他們的區(qū)別
主Acitivity

package com.example.stickybroadcastdemo;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;


public class MainActivity extends Activity implements OnClickListener{

    Button registerStickbt;
    Button registerNormalbt;
    TextView mTextView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        sendStickyBroadcast(new Intent("com.example.stickybroadcastdemo.stickybrocast"));  //發(fā)送粘性廣播
        sendBroadcast(new Intent("com.example.stickybroadcastdemo.normalbrocast"));       //發(fā)送普通廣播
        registerStickbt=(Button)findViewById(R.id.registerstick);
        registerNormalbt=(Button)findViewById(R.id.registernormal);
        mTextView=(TextView)findViewById(R.id.result);
        registerStickbt.setOnClickListener(this);
        registerNormalbt.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch (v.getId()) {
        case R.id.registerstick:
            registerReceiver(stickreceiver, new IntentFilter("com.example.stickybroadcastdemo.stickybrocast")); //注冊(cè)粘性廣播接收器
            break;

        case R.id.registernormal:
            registerReceiver(normalreceiver, new IntentFilter("com.example.stickybroadcastdemo.normalbrocast"));//注冊(cè)普通廣播接收器
            break;
            
        default:
            break;
        }
       
    }
    
    BroadcastReceiver stickreceiver=new BroadcastReceiver(){            //粘性廣播接收器
        public void onReceive(android.content.Context context, Intent intent) {
            mTextView.setText("recevier stick broadcast!");
        };
    };
    
    BroadcastReceiver normalreceiver=new BroadcastReceiver(){          //普通廣播接收器
        public void onReceive(android.content.Context context, Intent intent) {
            mTextView.setText("recevier normal broadcast!");
        };
    };

}

布局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.stickybroadcastdemo.MainActivity" >

    <Button
        android:id="@+id/registerstick"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="注冊(cè)粘性廣播" />

    <TextView
        android:id="@+id/result"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="36dp"
        android:text=""
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <Button
        android:id="@+id/registernormal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/registerstick"
        android:layout_below="@+id/registerstick"
        android:layout_marginTop="17dp"
        android:text="注冊(cè)普通廣播" />

</RelativeLayout>

布局有兩個(gè)按鈕，一個(gè)是注冊(cè)粘性廣播，一個(gè)是注冊(cè)普通廣播。點(diǎn)擊注冊(cè)粘性廣播按鈕會(huì)馬上返回結(jié)果。而點(diǎn)擊注冊(cè)普通廣播按鈕則沒(méi)有反應(yīng)

Paste_Image.png