Android进阶之路 - BroadcaseReceiver(自定义广播、有序广播、无序广播、广播拦截、动态注册、静态注册)的详细使用方式
2017-01-10 20:15
991 查看
众所周知BroadcaseReceiver为Android中的四大组件之一,又名为广播、喇叭,这篇我为大家带来的就是BroadcaseReceiver的详细使用方式,说到使用其中又有些许不同,下面为大家进行讲解
广播分为俩种俩式:
1.有序广播(可拦截)
2.无序广播(不可拦截)
1.动态注册(代码注册)
2.静态注册(清单注册)
使用方式与注意点:
1.使用BroadcaseReceiver首先要创建一个类继承BroadcaseReceiver,重写onReceiver方法(接收到广播的操作在这里执行)
2.在所依赖的Activity等寄生体之中发送广播(分有序和无序想,下文都有介绍)
3.作为Android下的四大组件之一,必不可少的自然是清单注册
4.文中我并没有监听系统的一些广播,如开机,上网之类,均是为了方便自己定义的,有兴趣的可以举一反三进行广播处理
1.MainActivity主代码与各个接收者代码
2.MainActivity的Xml代码
3.清单文件(主要用于观察注册与优先级的处理)
MainActivity的代码:
以下Recevice方法均只是一个简单的Toask
CostomBroadcaseReceiver的代码(自定义广播):
DynamicBroadcaseReceiver的代码(动态注册):
LocalBroadcaseReceiver的代码(本地广播):
StaticBroadcaseReceiver的代码(静态注册):
QuickBroadcaseReceiver(优先级的广播接收者,做了拦截处理,静态广播被拦截,只能接收到优先级的广播)的代码:
MainActivity的Xml代码:
清单文件:
广播分为俩种俩式:
1.有序广播(可拦截)
2.无序广播(不可拦截)
1.动态注册(代码注册)
2.静态注册(清单注册)
使用方式与注意点:
1.使用BroadcaseReceiver首先要创建一个类继承BroadcaseReceiver,重写onReceiver方法(接收到广播的操作在这里执行)
2.在所依赖的Activity等寄生体之中发送广播(分有序和无序想,下文都有介绍)
3.作为Android下的四大组件之一,必不可少的自然是清单注册
4.文中我并没有监听系统的一些广播,如开机,上网之类,均是为了方便自己定义的,有兴趣的可以举一反三进行广播处理
1.MainActivity主代码与各个接收者代码
2.MainActivity的Xml代码
3.清单文件(主要用于观察注册与优先级的处理)
MainActivity的代码:
package com.example.broadcasereceiver; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.content.IntentFilter; import android.support.v4.content.LocalBroadcastManager; import android.view.View; import android.view.View.OnClickListener; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity implements OnClickListener { private TextView mCostomBroad; private TextView mLocalBroad; private LocalBroadcastManager localBroadcast; private TextView mDynamicBroad; private TextView mStaticBroad; private TextView mQuickBroad; private IntentFilter dynamic_filter; private DynamicBroadcaseReceiver dynamicBroadcaseReceiver; private LocalBroadcaseReceiver localBroadcaseReceiver; private TextView mQucly; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // 事件 init(); // 处理 initEvent(); /**这里要注意注册是注册,发送广播是发送广播,是前后关系,而不可混为一谈*/ // 获取本地管理者 localBroadcast = LocalBroadcastManager.getInstance(this); //动态注册-都是一个套路 IntentFilter localFilter = new IntentFilter(); localFilter.addAction("LocalBroadcaseReceiver"); localBroadcaseReceiver = new LocalBroadcaseReceiver(); localBroadcast.registerReceiver(localBroadcaseReceiver, localFilter); } /** * 放置find-Id * */ private void init() { mLocalBroad = (TextView) findViewById(R.id.Broadcase_local); mCostomBroad = (TextView) findViewById(R.id.Broadcase_costom); mDynamicBroad = (TextView) findViewById(R.id.Broadcase_dynamic); mStaticBroad = (TextView) findViewById(R.id.Broadcase_static); mQuickBroad = (TextView) findViewById(R.id.Broadcase_quick); } /** * 设置Click * */ private void initEvent() { mCostomBroad.setOnClickListener(this); mLocalBroad.setOnClickListener(this); mDynamicBroad.setOnClickListener(this); mStaticBroad.setOnClickListener(this); mQuickBroad.setOnClickListener(this); } /** * Event处理 * */ @Override public void onClick(View v) { switch (v.getId()) { // 自定义广播 case R.id.Broadcase_costom: Intent intent = new Intent("CostomBroadcaseReceiver"); sendBroadcast(intent); break; // 动态註冊广播 case R.id.Broadcase_dynamic: //和清单文件格式对应,这里是添加广播的过滤 dynamic_filter = new IntentFilter(); //添加动作= 设置广播 dynamic_filter.addAction("DynamicBroadcaseReceiver"); //注册广播-确定监听者与广播 dynamicBroadcaseReceiver = new DynamicBroadcaseReceiver(); registerReceiver(dynamicBroadcaseReceiver, dynamic_filter); //Toast.makeText(MainActivity.this, "动态注册广播", 0).show(); Intent DynamicIntent = new Intent("DynamicBroadcaseReceiver"); sendBroadcast(DynamicIntent); break; // 静态靜態广播-有序广播 case R.id.Broadcase_static: Intent Staticintent = new Intent("StaticBroadcaseReceiver"); //一般情况的使用这种方式就是标准方式,也就是无序广播 //sendBroadcast(Staticintent); //这样就是有序的广播了 (注意:方法不同),我们可以对其做处理,如拦截之类, sendOrderedBroadcast(Staticintent, null); break; // 本地广播 case R.id.Broadcase_local: Intent localIntent = new Intent("LocalBroadcaseReceiver"); localBroadcast.sendBroadcast(localIntent); break; //优先级的测试-这里我们选择静态注册,也就是直接在清单注册-设置priority //经过测试很明显拦截广播是建立在有序广播的基础上面,同时拦截广播后只显示静态注册的Toask,而不是优先级的Toask case R.id.Broadcase_quick: Intent quickintent = new Intent("StaticBroadcaseReceiver"); quickintent.setAction("QuickBroadcaseReceiver"); sendOrderedBroadcast(quickintent, null); break; default: break; } } @Override p f811 rotected void onDestroy() { super.onDestroy(); //注销广播-因为不是本地广播的话,会有数据隐患的,好比你已经关了APP但是还是一直发广播或者接收广播,系统会自己操作,所以极为不安全, //so if dynamicbRoadcaseReceiver ,we need shell all;(- -!) unregisterReceiver(dynamicBroadcaseReceiver); unregisterReceiver(localBroadcaseReceiver); } }
以下Recevice方法均只是一个简单的Toask
CostomBroadcaseReceiver的代码(自定义广播):
package com.example.broadcasereceiver; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.widget.Toast; /** * 自定义广播 * */ public class CostomBroadcaseReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent arg1) { Toast.makeText(context, "自定义广播触发", 0).show(); } }
DynamicBroadcaseReceiver的代码(动态注册):
package com.example.broadcasereceiver; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.widget.Toast; /** * 自定义广播 * */ public class DynamicBroadcaseReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent arg1) { Toast.makeText(context, "动态注册广播触发", 0).show(); } }
LocalBroadcaseReceiver的代码(本地广播):
package com.example.broadcasereceiver; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.widget.Toast; /** * 自定义广播 * */ public class LocalBroadcaseReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent arg1) { Toast.makeText(context, "本地自定义广播触发", 0).show(); } }
StaticBroadcaseReceiver的代码(静态注册):
package com.example.broadcasereceiver; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.widget.Toast; /** * 自定义广播 * */ public class StaticBroadcaseReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent arg1) { Toast.makeText(context, "静态广播广播触发", 0).show(); } }
QuickBroadcaseReceiver(优先级的广播接收者,做了拦截处理,静态广播被拦截,只能接收到优先级的广播)的代码:
package com.example.broadcasereceiver; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.widget.Toast; public class QuickBroadcaseReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { Toast.makeText(context, "优先级的测试广播触发", 0).show(); abortBroadcast(); } }
MainActivity的Xml代码:
<LinearLayout 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:orientation="vertical" tools:context=".MainActivity" > <TextView android:id="@+id/Broadcase_costom" android:layout_width="match_parent" android:layout_height="40dp" android:gravity="center" android:text="@string/CostomBroadcase" /> <TextView android:id="@+id/Broadcase_dynamic" android:layout_width="match_parent" android:layout_height="40dp" android:gravity="center" android:text="@string/DynamicBroadcase" /> <TextView android:id="@+id/Broadcase_static" android:layout_width="match_parent" android:layout_height="40dp" android:gravity="center" android:text="@string/StaticBroadcase" /> <TextView android:id="@+id/Broadcase_local" android:layout_width="match_parent" android:layout_height="40dp" android:gravity="center" android:text="@string/LocalBroadcase" /> <TextView android:id="@+id/Broadcase_quick" android:layout_width="match_parent" android:layout_height="40dp" android:gravity="center" android:text="优先级测试" /> </LinearLayout>
清单文件:
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.broadcasereceiver" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="com.example.broadcasereceiver.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <!-- 自定义广播 --> <receiver android:name="com.example.broadcasereceiver.CostomBroadcaseReceiver" > <intent-filter> <action android:name="CostomBroadcaseReceiver"/> </intent-filter> </receiver> <!-- 静态注册 --> <receiver android:name="com.example.broadcasereceiver.StaticBroadcaseReceiver" > <intent-filter > <action android:name="StaticBroadcaseReceiver"/> </intent-filter> </receiver> <!-- 优先级测试 --> <receiver android:name="com.example.broadcasereceiver.QuickBroadcaseReceiver" > <intent-filter android:priority="100" > <action android:name="QuickBroadcaseReceiver"/> <action android:name="StaticBroadcaseReceiver"/> </intent-filter> </receiver> </application> </manifest>
相关文章推荐
- Android中广播的使用(动态、静态注册的区别,有序无序广播的使用)
- android中广播的使用(动态和静态注册)
- Android开发4: Notification编程基础、Broadcast的使用及其静态注册、动态注册方式
- Android组件- 广播的静态动态有序无序与优先级
- android,自定义广播,最终广播接收者,防止拦截广播,有序广播,无序广播
- 静态注册和动态注册 无序广播 有序广播
- Android使用Broadcast实现无序静态与动态广播功能
- Android 自定义广播(无序广播) BroadcastReceiver广播接受者(静态、动态)
- Android组件- 广播的静态动态有序无序与优先级
- Android静态/动态注册广播的区别
- Android中BroadcastReceiver的两种注册方式(静态和动态)详解
- Android 中动态广播接收器和静态广播接收器的使用
- 自定义动态注册广播和静态注册广播
- Android广播的静态与动态注册
- BroadcastReceiver的两种注册方式(静态注册和动态注册)android开发教程
- Android的广播Receiver动态注册和静态注册示例
- Android进阶之路 - Notification(通知)的详细使用方式
- Android自定义广播(动态、静态)
- 深入Android中BroadcastReceiver的两种注册方式(静态和动态)详解
- android 注册静态广播接收器VS注册动态广播接收器