android之自定义广播

布局文件

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点击按钮发送广播

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="match_parent"android:layout_height="match_parent"><Buttonandroid:id="@+id/sure"android:layout_width="wrap_content"android:layout_height="wrap_content"android:textSize="18sp"android:text="发送广播"/>
</LinearLayout>

activity

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在Activity中监听按钮事件并创建意图对象,通过sendBroadcast将意图对象发送出去

package xidian.dy.com.chujia;import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;public class MainActivity extends AppCompatActivity {SharedPreferences sp;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);sp = getSharedPreferences("hate", Context.MODE_PRIVATE);Button button = (Button) findViewById(R.id.sure);if(button != null)button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Intent intent = new Intent();intent.setAction("com.dy.xd.test");sendBroadcast(intent);}});}
}

广播接收者

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package xidian.dy.com.chujia;import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;/*** Created by dy on 2016/7/12.*/
public class Custom extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {String action = intent.getAction();Toast.makeText(context, "我的广播" +action, Toast.LENGTH_SHORT).show();}
}

清单文件

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在清单文件中需要我们在创建意图对象时设置的action

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="xidian.dy.com.chujia">
<applicationandroid:allowBackup="true"android:icon="@mipmap/ic_launcher"android:label="@string/app_name"android:supportsRtl="true"android:theme="@style/AppTheme"><activityandroid:name=".MainActivity"android:label="主界面"><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity><receiver android:name=".Custom"><intent-filter><action android:name="com.dy.xd.test" /></intent-filter></receiver>
</application>
</manifest>