通过remoteViews自定义Notification通知栏的布局

来源：互联网发布：javascript复选框全选编辑：程序博客网时间：2024/06/05 14:45

remoteViews,是一种远程view，通过跨进程更新自己的界面，主要用于通知栏和桌面小部件的开发过程中。

1、通知栏的实现

public class MainActivity extends Activity implements View.OnClickListener {    private Button btn_one,btn_two,btn_three,btn_four;    private NotificationManager manager;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        btn_one = (Button) findViewById(R.id.btn_one);        btn_one.setOnClickListener(this);        btn_two = (Button) findViewById(R.id.btn_two);        btn_two.setOnClickListener(this);        btn_three = (Button) findViewById(R.id.btn_three);        btn_three.setOnClickListener(this);        btn_four = (Button) findViewById(R.id.btn_four);        btn_four.setOnClickListener(this);        manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);    }    @Override    public void onClick(View view) {        switch (view.getId()) {            case R.id.btn_one://默认通知                PendingIntent pendingIntent1=PendingIntent.getActivity(this,0,new Intent(this,OtherActivity.class),PendingIntent.FLAG_UPDATE_CURRENT);                Notification notification1=new Notification();                notification1.icon=R.drawable.head;                notification1.when=System.currentTimeMillis();                notification1.tickerText="您有新短消息，请注意查收！";                notification1.contentIntent=pendingIntent1;                manager.notify(1,notification1);                break;            case R.id.btn_two://API11之后使用                PendingIntent pendingIntent2=PendingIntent.getActivity(this,0,new Intent(this,OtherActivity.class),PendingIntent.FLAG_UPDATE_CURRENT);                Notification notification2=new Notification.Builder(this)                        .setSmallIcon(R.drawable.head)//即便自定义了图标，但有时候还是显示系统默认的，应该与手机类型有关                        .setContentTitle("好消息")                        .setContentText("API11之后的通知")                        .setTicker("hello world")                        .setWhen(System.currentTimeMillis())                        .setContentIntent(pendingIntent2)                        .setNumber(1)       //在最右侧现实。这个number起到一个序列号的作用，如果多个触发多个通知（同一ID），可以指定显示哪一个。                        .getNotification(); //build()是在API16及之后增加的，在API11中可以使用getNotificatin()来代替                manager.notify(1,notification2);                break;            case R.id.btn_three://API16之后使用                PendingIntent pendingIntent3=PendingIntent.getActivity(this,0,new Intent(this,OtherActivity.class),PendingIntent.FLAG_UPDATE_CURRENT);                Notification notification3=new Notification.Builder(this)                        .setSmallIcon(R.drawable.head)                        .setContentTitle("好消息")                        .setContentText("API16之后的通知")                        .setTicker("hello world")                        .setWhen(System.currentTimeMillis())                        .setContentIntent(pendingIntent3)                        .setNumber(1)                        .build();                manager.notify(1,notification3);                break;            case R.id.btn_four://自定义通知，                Notification notification = new Notification();                notification.when = System.currentTimeMillis();                notification.flags = Notification.FLAG_AUTO_CANCEL;                notification.tickerText = "hello world";                notification.icon = R.drawable.head;//这是个坑，如果不设置icon，通知不显示                Intent intent = new Intent(MainActivity.this, OtherActivity.class);                PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);                RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.remote_layout);                remoteViews.setTextViewText(R.id.tv_title, "请假条");                remoteViews.setTextViewText(R.id.tv_content, "世界这么大，我想去看看");                remoteViews.setImageViewResource(R.id.iv_head, R.drawable.head);                notification.contentIntent = pendingIntent;                notification.contentView = remoteViews;                manager.notify(1, notification);                break;        }    }}

通知栏的布局remote_layout

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:gravity="center"    android:orientation="horizontal">    <ImageView        android:id="@+id/iv_head"        android:layout_width="40dp"        android:layout_height="40dp" />    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:paddingLeft="10dp"        android:orientation="vertical">        <TextView            android:id="@+id/tv_title"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="标题" />        <TextView            android:id="@+id/tv_content"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:paddingTop="3dp"            android:text="内容。。。。" />    </LinearLayout></LinearLayout>

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