IPOD 1 之通知栏显示与交互

package com.example.test_ipod_demo;import android.R.anim;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.Context;import android.content.Intent;import android.graphics.Bitmap;import android.support.v4.app.NotificationCompat;import android.widget.RemoteViews;/** * @author luohao 构造单例模式 */public class IpodNotificationBuilder {private Context context = null;private static IpodNotificationBuilder notificationBuilder = null;private NotificationManager notificationManager = null;private NotificationCompat.Builder notification = null;/** * 自定义视图 */private RemoteViews remoteViews = null;/** * 事件广播 */private Intent broadIntent = null;/** * 歌手名 */private String singer_name = "未知歌手";/** * 歌曲名 */private String song_name = "未知歌曲";private IpodNotificationBuilder(Context context) {this.context = context;notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);notification = new NotificationCompat.Builder(context);//设置显示视图remoteViews = new RemoteViews(context.getPackageName(), R.layout.layout_paly_notify);setSingerName(singer_name);setSongrName(song_name);setSongPicture(android.R.drawable.ic_dialog_info);broadIntent = new Intent(NotifyReciever.NOTIFY_ACTION);// 上一首setOnClickData(R.id.imageButton_previous, NotifyReciever.VALUE_PREVIOUS, 0);// 播放/暂停setOnClickData(R.id.imageButton_play, NotifyReciever.VALUE_PALY_PAUSE, 1);setOnClickData(R.id.ImageButton_next, NotifyReciever.VALUE_NEXT, 2);setOnClickData(R.id.layout_info, NotifyReciever.VALUE_OPEN_ACTIVITY, 3);setSmallIcon(android.R.drawable.ic_dialog_email);// notification.setSmallIcon(android.R.drawable.ic_dialog_email);//// 必须设置此图标，否则notify不显示：此图标为，通知栏显示的小图标// notificationManager.notify(1, notification.build());}public static IpodNotificationBuilder getInstance(Context context) {if (notificationBuilder == null) {notificationBuilder = new IpodNotificationBuilder(context);}return notificationBuilder;}/** * 设置自定义视图中的 控件click响应 以及 数据 *  * @param viewId  控件Id * @param value 事件代码 * @param requestCode 区分pendingIntent  设置为一样的，后面的会覆盖前面的事件与数据 */private void setOnClickData(int viewId, int value, int requestCode) {broadIntent.putExtra(NotifyReciever.NOTIFY_KEY, value);PendingIntent pendingIntent_pre = PendingIntent.getBroadcast(context, requestCode, broadIntent, PendingIntent.FLAG_UPDATE_CURRENT);remoteViews.setOnClickPendingIntent(viewId, pendingIntent_pre);}/** * 设置通知栏显示小图标 *  * @param icon * @return */public IpodNotificationBuilder setSmallIcon(int icon) {notification.setSmallIcon(icon);return this;}/** * 设置歌曲专辑图片 *  * @param viewId * @param srcId * @return */public IpodNotificationBuilder setSongPicture(int srcId) {remoteViews.setImageViewResource(R.id.imageView_song, srcId);return this;}/** * 设置歌曲专辑图片 *  * @param viewId * @param bitmap * @return */public IpodNotificationBuilder setSongPicture(Bitmap bitmap) {remoteViews.setImageViewBitmap(R.id.imageView_song, bitmap);return this;}/** * 设置歌手名 *  * @param singerName * @return */public IpodNotificationBuilder setSingerName(String singerName) {remoteViews.setTextViewText(R.id.textView_singer, singerName);return this;}/** * 设置 歌曲名 *  * @param songName * @return */public IpodNotificationBuilder setSongrName(String songName) {remoteViews.setTextViewText(R.id.textView_song, songName);return this;}/** * 切换 播放/暂停 图标 *  * @param isPlay *            是否正在播放 * @return */public IpodNotificationBuilder switchImagePaly_Pause(boolean isPlay) {if (isPlay) {remoteViews.setImageViewResource(R.id.imageButton_play, android.R.drawable.ic_media_play);} else {remoteViews.setImageViewResource(R.id.imageButton_play, android.R.drawable.ic_media_pause);}return this;}/** * 创建并显示 *  * @param isClear *            是否可被清除 */public void buildShow(boolean isClear) {notification.setContent(remoteViews);Notification notification2 = notification.build();if (isClear) {// 可被清除notification2.flags = Notification.FLAG_AUTO_CANCEL;} else {notification2.flags = Notification.FLAG_NO_CLEAR;}notificationManager.notify(320, notification2);// notification.setAutoCancel(true);// notificationManager.notify(320, notification.build());}}

注意点：

1.小图标要设置，否则不显示

notification.setSmallIcon(android.R.drawable.ic_dialog_email);// 必须设置此图标，否则notify不显示：此图标为，通知栏显示的小图标

2.事件以广播的形式发送，通知后台，由于不同的操作对应不同的事件，所以requestCode 要设置为不一样的，以区分不同的PendingIntent，否则后面的事件与数据会 覆盖前面的。

PendingIntent pendingIntent_pre = PendingIntent.getBroadcast(context, requestCode, broadIntent, PendingIntent.FLAG_UPDATE_CURRENT);

3.设置 通知栏是否可被清除

Notification notification2 = notification.build();if (isClear) {// 可被清除notification2.flags = Notification.FLAG_AUTO_CANCEL;} else {notification2.flags = Notification.FLAG_NO_CLEAR;}notificationManager.notify(320, notification2);

广播处理类：

package com.example.test_ipod_demo;import android.R.string;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.support.v4.app.NotificationCompat;import android.util.Log;import android.widget.RemoteViews;import android.widget.Toast;/** * 通知栏 操作广播通知处理 *  * @author luohao * */public class NotifyReciever extends BroadcastReceiver {public static final String NOTIFY_ACTION = "action.ipod.notify";public static final String NOTIFY_KEY = "CMD";public static final int VALUE_OPEN_ACTIVITY = 0;public static final int VALUE_PALY_PAUSE = 1;public static final int VALUE_NEXT = 2;public static final int VALUE_PREVIOUS = 3;String tag = "MReciever";@Overridepublic void onReceive(Context context, Intent intent) {Log.i(tag, intent.getAction());Log.i(tag, String.valueOf(intent.getIntExtra(NOTIFY_KEY, 10)));switch (intent.getExtras().getInt(NOTIFY_KEY, VALUE_OPEN_ACTIVITY)) {case VALUE_OPEN_ACTIVITY:Log.i(tag, "打开正在播放");Toast.makeText(context, "跳转到正在播放", 1000).show();break;case VALUE_PALY_PAUSE:Log.i(tag, "播放/暂停");Toast.makeText(context, "播放/暂停", 1000).show();NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);IpodNotificationBuilder.getInstance(context).switchImagePaly_Pause(false).buildShow(false);break;case VALUE_NEXT:Log.i(tag, "下一首");Toast.makeText(context, "下一首", 1000).show();break;case VALUE_PREVIOUS:Log.i(tag, "上一首");Toast.makeText(context, "上一首", 1000).show();break;default:break;}}}