一个活动应该有多少次展示？
问题描述：
我知道，在XML中，视图是昂贵的，最好你应该争取尽可能少。但对我来说，我设计我的布局在这样一个，我有点被迫有很多意见的方式，接近80的Eclipse给了我这个警告，所以我删除了一些意见，但我只能做了这么多我的实现需要最低，48次了蝙蝠，而不是包括一些额外的东西。所以我的问题是我是否应该真正找到一个更简单的方法，或者它的罚款。什么是真正应该是最大的实际人数？
I know that in XML, Views are expensive, and ideally you should strive for as little as possible. But in my case, I am designing my layout in a such a way that I am sort of forced to have a lot of Views, close to 80. Eclipse gave me a warning on this, so I deleted some Views, but I can only do so much as my implementation requires minimum, 48 Views off the bat, and not including some extra stuff. So my question is in whether I should really find a simpler way, or if its fine. What is the actual number that really should be maximum?
XML文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/top_bar_date_display"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="July 1, 2012"
android:background="#696969"/>
<ScrollView
android:layout_height="wrap_content"
android:layout_width="match_parent"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/day_view_floaty_holder"
android:background="#000000">
<GridLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnCount="1" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="12\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal"
android:layout_marginBottom="1dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="1\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="2\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="3\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="4\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="5\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="6\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="7\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="8\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="9\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="10\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="11\nAM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="12\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="1\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="2\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="3\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="4\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="5\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="6\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="7\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="8\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="9\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="10\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="vertical"
android:background="#ffffff"
android:layout_marginBottom="1dp" >
<TextView
android:layout_width="20dp"
android:layout_height="60dp"
android:text="11\nPM"
android:background="#bebebe"
android:textSize="10dp"
android:gravity="center_horizontal" />
</LinearLayout>
</GridLayout>
<!-- THIS GRIDLAYOUT IS WHERE THE EVENTS WILL BE PLACED-->
<GridLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnCount="1" >
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_0"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_1"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_2"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_3"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_4"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_5"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_6"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_7"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_8"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_9"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_10"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_11"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_12"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_13"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_14"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_15"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_16"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_17"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_18"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_19"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_20"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_21"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_22"
android:orientation="horizontal" ></LinearLayout>
<LinearLayout
android:layout_height="61dp"
android:layout_width="match_parent"
android:layout_marginLeft="20dp"
android:id="@+id/day_view_23"
android:orientation="horizontal" ></LinearLayout>
</GridLayout>
</RelativeLayout>
</ScrollView>
我也许应该解释的背后是什么code转换为逻辑。我基本上需要它上面浮起另一个24行的24行的网格布局，以及另一个GridLayout的。我这样做是为了区分什么，我需要浮在第一GridLayout的上方。它的假设是每天查看的日历应用程序。
I should probably explain the logic behind what the code translated to. I essentially needed a GridLayout of 24 rows, as well as another GridLayout of another 24 rows floated above it. I did this to separate what I need to float above the first GridLayout. Its suppose to be for a Day View for a calendar app.
答
正如我所说的，我会用一个的ListView 来显示数据，以避免弄出这么大的意见。首先，我想创建一个类来重新present您在列表中显示用户事件：
As I said I would use a ListView to show the data to avoid making so much views. First I would create a class to represent the user events that you show in the list:
private static class Event {
public int startHour;
public int hours = 1;
public String name;
public String date;
public boolean isEmptyEvent = true;
public Event(int startHour, int hours, String name, String date,
boolean isEmptyEvent) {
this.startHour = startHour; 0 to 23 (the method getStartHour makes this pretty)
this.hours = hours; // how many this event requires(default 1)
this.name = name;
this.date = date;
this.isEmptyEvent = isEmptyEvent;
}
public String getStartHour() {
// should optimize this method so you don't end up creating String
// after String(char array?)!
if (startHour < 10) {
return "0" + startHour + ":00";
}
return String.valueOf(startHour) + ":00";
}
}
然后我会在解析事件我有数据对象（我不知道你在数据库中保存什么，所以这仅仅是猜测）：
Then I would parse the data I have in Events object(I don't know what you save in the database so this is just guessing):
public SparseArray<Event> getData(String date) {
// here you get the data from the database and create Events object for
// those dates
SparseArray<Event> data = new SparseArray<Event>(); // for efficiency
// add some random events
data.put(3, new Event(3, 1, "Breackfast", date, false));// one event at 3 taking 1 hour
data.put(14, new Event(14, 3, "Lunch", date, false));// one event at 14 taking 3 hour
data.put(20, new Event(20, 2, "Dinner", date, false));// one event at 20 taking 2 hour
return data;
}
然后在适配器我将填补空白项（其中用户还没有任何设置），空活动其余对象，并将其展示给用户。由于code是有点大了，我不会张贴在这里，而不是你可以找到完整的活动+这里布局 HTTPS ：//gist.github.com/3370107
Then in the adapter I would fill the rest of the empty entries(where the user didn't yet set anything) with empty Events objects and show it to the user. As the code is a little big I will not post it here , instead you can find the full activity+ layouts here https://gist.github.com/3370107