Android的CalendarView放缓布局 [英] Android CalendarView slowing down layout

问题描述

这是推动我疯了。我在我的Andr​​oid应用程序的片段是奠定了使用RelativeLayout的。问题是，由于某种原因，它需要年龄渲染，大约5秒的时间来加载约4个元素在屏幕上。

This is driving me crazy. I have a fragment in my Android app which is laid out using a RelativeLayout. Problem is that for some reason it takes ages to render, about 5 seconds just to load about 4 elements on screen.

一个元素是CalendarView，当我删除它，又回到正常速度（即：瞬发）。我想像的问题有什么关系，我问的Andr​​oid奠定它的出路，一定没有多大意义或者是低效或东西。

One of the elements is a CalendarView and when I remove it it goes back to proper speeds (ie: instant). I'd imagine the problem is got to do with the way I'm asking Android to lay it out, must not make much sense or is inefficient or something.

下面的XML文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="20dp">

<TextView
     android:id="@+id/title"
     android:layout_width="0dp"
     android:layout_height="wrap_content"
     android:textStyle="bold"
     android:text="TODAY"
     android:textAppearance="?android:attr/textAppearanceLarge" 

     android:layout_alignParentLeft="true"
     android:layout_alignParentTop="true"
     android:layout_toLeftOf="@+id/time" />

<TextView
     android:id="@id/time"
     android:gravity="right"
     android:textStyle="bold"
     android:layout_width="100dp"
     android:layout_height="wrap_content"
     android:text="11:32"
     android:textAppearance="?android:attr/textAppearanceLarge"

     android:layout_alignParentRight="true" />

<TextView
    android:id="@+id/date_info"
    android:layout_margin="20dp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Wednesday, 15th August 2012"
    android:textAppearance="?android:attr/textAppearanceMedium"

    android:layout_below="@id/title"
    android:layout_alignParentLeft="true" />

<CalendarView        
    android:id="@+id/calendar_view"
    android:layout_width="250dp"
    android:layout_height="250dp"
    android:background="@drawable/white_back_black_border"

    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true" />
</RelativeLayout>

我已经尝试了不同的布局选择加载，但删除日历似乎是有差别的唯一的事。

I've tried loads of different layout options but removing the Calendar seems to be the only thing that makes a difference.

任何见解将大大AP preciated。谢谢

Any insights would be greatly appreciated. Thanks

推荐答案

我有这个问题太多，既相对布局和线性布局。它似乎并没有被布置有关。

I've had this problem too, both with relative layouts and linear layouts. It doesn't seem to be layout-related.

下面是一个例子，看看错误，只需用一个简单的布局，没有code在所有的：

Here is an example to see the error, just with a simple layout, no code at all:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".FechaHoraActivity" >

    <TimePicker
        android:id="@+id/timePicker1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="20dp" />

    <CalendarView
        android:id="@+id/calendarView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

和现在只是线性布局高度更改为：

And now just change the linear layout height to:

android:layout_height="match_parent"

通过这种变化的问题​​消失了，至少在我的三星Galaxy Tab 2

With this change the problem is gone, at least in my Samsung Galaxy Tab 2

所以，现在看来，这是更多的空间有关，但我仍然不知道为什么会出现这个问题。而且我还没有发现其他有趣的结果在谷歌搜索calendarview慢......

So it seems it is more "space" related, but I'm still not sure why this problem appears. And I haven't found any other interesting results on google searching "calendarview slow"...

修改的让我们看看我们是否能够找到一个小的赏金答案的

这篇关于Android的CalendarView放缓布局的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！