我正在创建一个类似于iPad的iMessage应用程序的应用程序,它可以进行消息传递.因此,当显示键盘时,有一个输入视图锚定在消息视图的底部并输入附件视图.在停靠或取消停靠时显示键盘时,必须正确调整消息视图的大小.
我遇到的问题是来自UIKeyboardWillChangeFrameNotification的通知数据不一致.
首先,用户可以通过3种方式取消键盘:
对于案例#1,来自UIKeyboardWillChangeFrameNotification的通知数据是一致的.这是数据:
userInfo = {
UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 0}, {768, 304}}";
}
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对于情况#2和#3,数据不一致,这是我收到的:
userInfo = {
UIKeyboardAnimationCurveUserInfoKey = 0;
UIKeyboardAnimationDurationUserInfoKey = "0.25";
UIKeyboardBoundsUserInfoKey = "NSRect: {{0, 0}, {768, 304}}";
UIKeyboardCenterBeginUserInfoKey = "NSPoint: {384, 872}";
UIKeyboardCenterEndUserInfoKey = "NSPoint: {384, 1136}";
UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 0}, {768, 304}}";
UIKeyboardFrameChangedByUserInteraction = 0;
UIKeyboardFrameEndUserInfoKey = "NSRect: {{0, -264}, {768, 304}}";
}
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这里很奇怪的是,当我在#2或#3情况下监听UIKeyboardDidChangeFrameNotification时,数据按预期进入:
userInfo = {
UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 0}, {768, 304}}";
}
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为什么通知数据不同?有没有人找到一种清晰的方法来检测分裂键盘事件?
我知道我们有10秒的时间处理意图; 否则,看门狗计时器将启动.它假设是一个轻量级的功能.所以我的问题是,BroadcastReceiver与root活动在同一进程中运行吗?或者它是否在Zygote系统进程上运行?
我试图通过远程视图在状态栏上显示自定义通知内容.我在宽度和高度都使用fill_parent,但右侧总是有一个小间隙.我在这做错了什么?
请看这里的屏幕截图:http://img684.imageshack.us/img684/2347/devicenq.png
布局代码(我也使用了LinearLayout):
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/solid_yellow"
>
<ImageView android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginRight="10dp"
android:src="@drawable/stat_sample"
/>
<TextView android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:textColor="#000"
android:text="Hello, this message is in a custom expanded view"
/>
</RelativeLayout>
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这是代码片段:
Intent notificationIntent = new Intent(this, MessengerService.class);
PendingIntent contentIntent = PendingIntent.getActivity(
this, 0, notificationIntent, 0);
Notification notification = new Notification(R.drawable.stat_sample,
"Hello", System.currentTimeMillis());
RemoteViews contentView = new RemoteViews(getPackageName(),
R.layout.custom_notification_layout);
notification.contentView = contentView;
notification.contentIntent = contentIntent;
mNM.notify(R.string.remote_service_started, notification);
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我整天都在用这个敲打我的头......谢谢.