V4的NotificationManagerCompat，v7的NotificationCompat

V4的NotificationManagerCompat，v7的NotificationCompat

其实没啥，NotificationManagerCompat相比与NotificationManager，兼容性更好，还是用新的比较好

v7包的NotificationCompat，同理，对比v4的NotificationCompat，和普通的Notification，兼容性更好，当然用最新，

package com.example.notificationtest;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.Intent;import android.graphics.BitmapFactory;import android.graphics.Color;import android.net.Uri;import android.os.Bundle;import android.support.v4.app.NotificationManagerCompat;import android.support.v7.app.AppCompatActivity;import android.support.v7.app.NotificationCompat;import android.util.Log;import android.view.View;import android.widget.Button;import java.io.File;public class MainActivity extends AppCompatActivity  implements View.OnClickListener {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Button sendNotice = (Button) findViewById(R.id.send_notice);        sendNotice.setOnClickListener(this);    }    @Override    public void onClick(View v) {        switch (v.getId()) {            case R.id.send_notice:                Intent intent = new Intent(this, NotificationActivity.class);                PendingIntent pi = PendingIntent.getActivity(this, 0, intent, 0);                NotificationManager managera=(NotificationManager) getSystemService(NOTIFICATION_SERVICE);                NotificationManagerCompat manager = NotificationManagerCompat.from(this);                Log.i("onClick: ", "onClick: "+manager.areNotificationsEnabled());                Notification notification = new NotificationCompat.Builder(this)                        .setContentTitle("This is content title")                        .setContentText("This is content text")                        .setWhen(System.currentTimeMillis())                        .setSmallIcon(R.mipmap.ic_launcher)                        .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))                        .setContentIntent(pi)                        .setSound(Uri.fromFile(new File("/system/media/audio/ringtones/Luna.ogg")))                        .setVibrate(new long[]{0, 1000, 1000, 1000})                        .setLights(Color.GREEN, 1000, 1000)                        .setDefaults(NotificationCompat.DEFAULT_ALL)                        .setStyle(new NotificationCompat.BigTextStyle().bigText("Learn how to build notifications, send and sync data, and use voice actions. Get the official Android IDE and developer tools to build apps for Android."))                        .setStyle(new NotificationCompat.BigPictureStyle().bigPicture(BitmapFactory.decodeResource(getResources(), R.drawable.big_image)))                        .setPriority(NotificationCompat.PRIORITY_MAX)                        .build();                manager.notify(1, notification);                break;            default:                break;        }    }}