为了更好地支持Android 5通知,我现在将应用程序的通知可见性设置为“public”。在考虑Lollipop Notification setVisibility() Does Not Work?上的答案后,通知现在按预期显示。但是,当我想单击通知的操作按钮时,我首先必须解锁不应该需要的设备。 (该操作显示密码数据库已解锁,操作按钮将锁定数据库。)
这是我使用创建通知的代码(使用Xamarin的Mono for Android):
NotificationCompat.Builder builder =
new NotificationCompat.Builder(this)
.SetOngoing(true)
.SetSmallIcon(Resource.Drawable.ic_notify)
.SetLargeIcon(...)
.SetVisibility((int)Android.App.NotificationVisibility.Public)
.SetContentTitle(...)
.SetContentText(...);
builder.AddAction(Resource.Drawable.ic_action_lock, GetString(Resource.String.menu_lock), PendingIntent.GetBroadcast(this, 0, new Intent(Intents.LockDatabase), PendingIntentFlags.UpdateCurrent));
其中this
是服务实例。
我知道MediaStyle通知有可点击的按钮,但感觉就像使用MediaStyle一样,即使它不是关于媒体的。有什么方法可以让我的动作在锁定屏幕上可用吗?
答案 0 :(得分:4)
不是添加操作,而是定义自己的通知布局,并通过RemoteView连接pendingIntent以触发该操作。 (以下示例基于Holo外观,并且仍然需要更新棒棒糖。您可以在sdk的android-21 / data / res文件夹中找到所有正确的资源)
// NOTE: while creating pendingIntent: requestcode must be different!
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(myService)
.setSmallIcon(R.drawable.notification_icon).setContentTitle("My Title")
.setContentText("Service running in the background");
Intent openIntent = new Intent(MainActivity.this, MainActivity.class);
PendingIntent pOpenIntent = PendingIntent.getActivity(this, 0, openIntent, 0);
mBuilder.setContentIntent(pOpenIntent);
// Notification with exit button if supported
String ACTION_NOTIFICATION_EXITACTIVITY = "com.jmols.example.exitactivity";
Intent exitIntent = new Intent();
exitIntent.setAction(ACTION_NOTIFICATION_EXITACTIVITY);
PendingIntent pExitIntent = PendingIntent.getBroadcast(this, 1, exitIntent, 0);
RemoteViews view = new RemoteViews(getPackageName(), R.layout.notification_discoveryservice);
view.setOnClickPendingIntent(R.id.notification_closebtn_ib, pExitIntent);
mBuilder.setContent(view);
使用通知布局:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:internal="http://schemas.android.com/apk/prv/res/android"
android:id="@+id/status_bar_latest_event_content"
android:layout_width="match_parent"
android:layout_height="64dp"
internal:layout_maxHeight="64dp"
internal:layout_minHeight="64dp" >
<ImageView
android:id="@+id/notification_icon_iv"
android:layout_width="64dp"
android:layout_height="64dp"
android:padding="10dp"
android:layout_alignParentLeft="true"
android:scaleType="center"
android:src="@drawable/notification_icon"
android:background="#3333B5E5" />
<ImageButton
android:id="@+id/notification_closebtn_ib"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:scaleType="centerInside"
android:src="@drawable/notification_exitbtn"
android:background="@drawable/notification_imagebtn_bg"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="fill_vertical"
android:gravity="top"
android:minHeight="64dp"
android:layout_toRightOf="@id/notification_icon_iv"
android:layout_toLeftOf="@id/notification_closebtn_ib"
android:orientation="vertical"
android:paddingBottom="2dp"
android:paddingEnd="8dp"
android:paddingTop="2dp" >
<TextView
android:id="@+id/notification_title_tv"
style="@android:style/TextAppearance.StatusBar.EventContent.Title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:ellipsize="marquee"
android:paddingTop="6dp"
android:singleLine="true"
android:text="JMols Service" />
<TextView
android:id="@+id/notification_contenttext_tv"
style="@android:style/TextAppearance.StatusBar.EventContent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:ellipsize="marquee"
android:singleLine="true"
android:text="Service running in the background" />
</LinearLayout>
</RelativeLayout>
通知背景是:
<selector xmlns:android="http://schemas.android.com/apk/res/android"
android:exitFadeDuration="@android:integer/config_mediumAnimTime">
<item android:state_pressed="true" android:drawable="@drawable/notification_bg_normal_pressed" />
<item android:state_pressed="false" android:drawable="@drawable/notification_bg_normal" />
</selector>
通知图像按钮背景是:
<selector xmlns:android="http://schemas.android.com/apk/res/android"
android:exitFadeDuration="@android:integer/config_mediumAnimTime">
<item android:state_pressed="true" android:drawable="@drawable/notification_imagebtn_bg_normal_pressed" />
<item android:state_pressed="false" android:drawable="@drawable/notification_imagebtn_bg_normal" />
</selector>
答案 1 :(得分:0)