relativelayout

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I’m trying set a layout for textview so I can use getEllipsisCount() method. But below code returns null as layout value. How can I take layout and then use getEllipsisCount(0) method. public class MainActivity extends Activity { @Override public void onCreate ( Bundle savedInstanceState ) { super . onCreate ( savedInstanceState ); setContentView ( R . layout . activity_main ); TextView mytextview =( TextView ) findViewById ( R . id . textView1 ); mytextview . setText ( myText ); Layout layout = mytextview . getLayout (); if (

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Why does FOOBARZ get layed out all the way at the bottom when no elements are layout_height="fill_parent" in other words, all elements are wrap_content for height? 回答1: From the RelativeLayout doc: Class Overview A Layout where the positions of the children can be described in relation to each other or to the parent. Note that you cannot have a circular dependency between the size of the RelativeLayout and the position of its children. For example, you cannot have a RelativeLayout whose height is set to WRAP_CONTENT and a child set

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm trying to adding TableRows to a TableLayout, which is working fantastically. However, I'm running into some problems with layout parameters. The spacing between the TextViews within a TableRow isn't working out like I thought it would. My current code looks as follows. paymentTable = ( TableLayout ) findViewById ( R . id . paymentTable ); for ( i = 0 ; i < cursor . getCount (); i ++) { TableRow row = new TableRow ( this ); TextView payAmount = new TextView ( this ); payAmount . setText ( cursor . getString ( cursor .

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm currently trying to implement SeekBarPreference class using http://android-journey.blogspot.com/2010/01/for-almost-any-application-we-need-to.html tutorial with RelativeLayout. First problem is TextView preferenceText isn't showing at all. Second problem is the bar can't be slided like those in regular preferences (like media volume bar)? public class SeekBarPreference extends Preference implements OnSeekBarChangeListener { public static int maximum = 100; public static int interval = 5; private float oldValue = 25; private TextView

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using relativelayout to set an image.Why I hadn't using imageview means, inside relativelayout image, I am setting icons. I dont know what is the issue exactly in glide.I have posted the stacktrace and relevant code below: Logcat: FATAL EXCEPTION: main Process: com.app.steve, PID: 15928 java.lang.IllegalArgumentException: You cannot start a load for a destroyed activity at com.bumptech.glide.manager.RequestManagerRetriever.assertNotDestroyed(RequestManagerRetriever.java:134) at com.bumptech.glide.manager.RequestManagerRetriever.get

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a custom Recycle View adapter that list my items. in each Item I check database and draw some circles with colors. when I scroll listview very fast every drawed data ( not title and texts) show wrongs! how I can manage dynamic View creation without showing wrong data?! @Override public void onBindViewHolder ( final ItemViewHolder itemViewHolder , int i ) { itemViewHolder . date . setText ( items . get ( i ). getData ()); // set the title itemViewHolder . relative_layout_tag_place . addView ( generateTagImages ( items . get (

I'm trying to take a screenshot in code in Android. Actually the screenshot is the bitmap of the main RelativeLayout. The screenshot is taken but the content appears wrong, the fill_parent, etc tags are not respected and the image appears in the top left and with the original size. Please anyone, help. Thanks This is my code : RelativeLayout v = (RelativeLayout)findViewById(R.id.main_layout); v.setDrawingCacheEnabled(true); // this is the important code :) // Without it the view will have a // dimension of 0,0 and the bitmap will // be null v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to horizontally center several views in a RelativeLayout that is a base. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center_horizontal" android:background="@android:color/transparent" > This isn't working. I have set centerInParent to true for one of the views and that did work. However, I can't use this solution because I have 2 views side by side that need to be centered together. Trying to optimize this so I

今天在看网上的大神写的新浪微博客户端的页面代码时，在一个relativelayout里面看见了 android:layout_centerVertical="true" 这一段 于是乎这段代码所起的作用让我产生了兴趣，关注的焦点就是：这段代码所作用的结果。 当时我在看eclipse开发工机的xml的视图页面的时候，发现有了这句话之后，相应的RelativeLayout中间出现了一条绿线，我的直观感受就是这句话应该是作用于这个RelativeLayout中的控件的。 但是本着科学的态度，我又查了查，发现网上的资料很少，最后我使出了杀手锏：自己实践！ 结果出乎我的意料： 其实这句话的作用是：让这个相对布局，处于它父控件的垂直方向的中心。 并不是指定自己内部控件处于垂直方向的中心 之前看了一个大神些的文章：http://blog.csdn.net/softkexin/article/details/5933589 这篇文章的就是讲RelativeLayout中的一些属性的作用的 最后又三句：” android:layout_centerInParent="true" --将控件置于父控件的中心位置 android:layout_centerHorizontal="true" --将控件置于水平方向的中心位置 android:layout_centerVertical="true" -

Android性能优化之布局优化 一、Android系统是如何处理UI组件的更新操作的 　　既然和布局相关，那么我们需要了解Android系统是如何处理UI组件的更新操作的。 　　1、Android需要把XML布局文件转换成GPU能够识别并绘制的对象。这个操作是在DisplayList的帮助下完成的。DisplayList持有所有将要交给GPU绘制到屏幕上的数据信息。 　　2、CPU负责把UI组件计算成Polygons，Texture纹理，然后交给GPU进行栅格化渲染。 　　3、GPU进行栅格化渲染。 　　4、硬件展示在屏幕上。 　　 那么什么是栅格化呢?Resterization栅格化是绘制那些Button，Shape，Path，String，Bitmap等组件最基础的操作，它把那些组件拆分到不同的像素上进行显示，如上图所示，手机的屏幕其实都是有一个一个小格子组成的图片，而当这些小格子非常非常小的时候，。这是一个很费时的操作，因此这也是为什么要引入GPU原因。 　　每次从CPU转移到GPU是一件很麻烦的事情，所幸的是OpenGL ES可以把那些需要渲染的文理Hold在GPU的Memory里面，在下次需要渲染的时候直接进行操作。 Android里面那些由主题所提供的资源，例如Bitmap，Drawables都是一起打包到统一的Texture文理当中， 然后再传递到GPU里面