Broadcast广播二

最新推荐文章于 2024-07-22 15:29:20 发布

RaylnGuan

最新推荐文章于 2024-07-22 15:29:20 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/rayln/article/details/39152667

本文详细介绍了Android中如何实现短信接收与广播机制，包括创建BroadcastActivity、定义BroadcastReceiver类、注册广播接收器以及使用IntentFilter筛选广播事件。通过实例代码展示了如何在应用程序中实时获取并处理接收到的短信。

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例子：

public class BroadcastActivity extends Activity {
	private SMSReceiver sms = null;
	private String SMS_ACTION = "android.provider.Telephony.SMS_RECEIVED";
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button b1 = (Button)findViewById(R.id.button1);
        b1.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				sms = new SMSReceiver();
				IntentFilter f = new IntentFilter();
				f.addAction(SMS_ACTION);
				BroadcastActivity.this.registerReceiver(sms, f);
			}
		});
    }
}

接收类：

public class SMSReceiver extends BroadcastReceiver{
	@Override
	public void onReceive(Context context, Intent intent) {
		System.out.println("onReceive message!!");
	}

}
Mainfest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.cn"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="4" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".BroadcastActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.VIBRATE"/>
</manifest>