custom emoji android

; Import Android.graphics.canvas;import Android.graphics.color;import Android.graphics.paint;import Android.util.attributeset;import Android.view.motionevent;import Android.view.view;import chuiyuan.lsj.androidjava.r;/** * Created by LSJ on 2015/9/26.e */public class BallView2 extends view{private float x ; private float y; private float R; private int color; Public BallView2 (Context context) {Super (context, NULL); } public BallView2 (context context, AttributeSet Attrs)

Android custom View: Writing Custom listening events in observer mode and writing common vertical letter index ColumnsOverview: Currently, vertical index columns are still very popular, and are used by various common software such as Meituan and mobile phone address book.Demo Write a custom View and use the observer mo

Often open other people's projects, found that the layout of the use of some third-party custom controls, graphical layout label is unable to preview the page, throw some exceptions:For hints Tip:use view.isineditmode () in your custom views to skip code when shown in Eclipse.Or a direct throw of the java.lang.NullPointerException,We directly find the code for the view layer, and the workaround is to locate

Custom view has always been a hurdle for Android developers. The relationship between view and ViewGroup From view and ViewGroup relationship, ViewGroup inherits view. View subclasses, mostly functional controls, provide the style to draw, such as Imageview,textview, and ViewGroup subclasses, used to manage the size of controls, locations, such as Linearlayout,relativelayout, As you can see from the figu

Android custom control -- (4) Circular progress bar and android progress bar -------------------------------- The progress bar of a circular chart (attribute explanation is available in the source code ----------------------------------------------------- I. shape style: (create in drawable -- new --> Drawable resource file and change the original parent-level

[Android] android custom styles and themes, android Simple exercises customize styles and themes. styles are added to the View, and themes are added to the Application or Activity. Styles. xml Activity_main.xml Manifest. xml

An example of this article describes the Android programming approach to implementing custom gestures. Share to everyone for your reference, specific as follows: I've described how to use gestures in an Android program, mainly the system's default gestures, this time about how to customize gestures and how to manage them. To introduce the

Android custom learning (5) custom Progressbar The last phase of custom View learning is now available. I believe everyone has their own implementation methods. Here I will post my methods for reference. /* Scale Paint brush */private Paint linePaint;/* progress Paint */private Paint textPaint;/* progress */private

In the Android development process, if the Android system's own attributes do not meet our daily development needs, then we need to add additional attributes to the system controls. If a requirement is to implement an underlined text display (underline), it's not hard to do without a custom attribute (at least I think there are many ways to implement it), and tod

No more nonsense to say, first show you the custom view effect map, if you think it is good, please continue to read. How, this kind of verification code is not very common, the following we do it ourselves to achieve this effect, do-it-yourself, ample, ha ~ First, customize the view steps Custom view has always been considered an android step to the master

many other attributes. These android textviews provide a lot of information. You are familiar with them and have a good grasp of some common attributes. You can check the APIs for other features. Next, I will focus on it. When we need the TextView function of some features, but the provided api cannot meet the requirements, for example, to make a skewed Textview, This requires customization. Steps: 1. Write a MyTextView class to inherit the View and

Custom View to implement Android circular progress bar, supports custom display styles, viewandroid I copied a memo based entirely on this.Click here to view the original version The Code is as follows: 1. res/values/attrs. xml 2. Specific implementation public class RoundProgressBar extends View {private Paint mPaint;private int mRoundColor;private int mProg

Now is going to implement a custom dialog, mainly involving style file style. Refer to the case, write your own code to achieve. First create an Android Project--customdialog, and then create an XML file Filled_box.xml under the Res/drawable folder, which reads: android:right= "10DP" android:bottom= 10DP "/> This file mainly draws a rounded rectangle (the default value of the shape's Android:shape

This example describes the custom control usage of Android development. Share to everyone for your reference, specific as follows: Share with you today the use of the combined controls. Most of the time Android custom controls do not meet the requirements. There are many ways you can draw one yourself, you can overrid

The example in this article analyzes the way that Android overrides view and customizes attributes. Share to everyone for your reference, specific as follows: This is achieved by customizing the properties shown in the following illustration: First step: Create a new file in the Res\values directory Attrs.xml Declaring some custom properties Step Two: Create a new layout file in the layou

()); Canvas.drawbitmap (Bitmap, rect, Taget, Getpaint ()); Canvas.translate (Taget.right+2, 0.5f); } }}3: Layout fileRelativelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:bingatt= "http://schemas.android.com/apk/res/package name"//Add package nameXmlns:tools= "Http://schemas.android.com/tools"Android:layout_height= "Match_parent"Android:layout_width= "Match_parent"Tools:context=". Mainactivity "> Demo.bing.cu

The example in this article describes an activity that the Android implementation can use to customize the transparent dialog style. Share to everyone for your reference, specific as follows: Sometimes you need a dialog box, but the content in the dialog box has more control and control over its lifecycle, and you can use a dialog-style activity to apply your project, so that the activity has a dialog box that can be added to the androidmanifest Them

The GridView is a very powerful component used in Android development. However, we sometimes have a lot of special needs that need to be reformed on its basis. Sometimes there will be the need to move the GridView item location, this online has a lot of examples, Bo owner is not described. Today's blog is about moving the contents of the GridView item. Bloggers have not seen the online mobile item location of the demo, do not know the principle is not

Custom controls are ubiquitous in Android, and custom controls give us a lot of convenience. For example, a view for ImageView, ImageButton, TextView and many other control combinations, with a lot of places, we can not write each time 3 of the combination, both waste time, efficiency and low. In this case, we can customize a view to replace them, not only improv

This article describes the way Android uses theme custom activity to enter exit animations. Share to everyone for your reference, specific as follows: Do you feel that the default animation for an activity is too fast or too ugly? I used activity.overridependingtransition to customize the activity's entry animation, but I found it impossible to define an exit animation. The result is a strong theme and st