nfc tags android

on-screen preference"8 Android:title= "Switch Preference" />9 Preferencescreen>, and then find no checkbox to showBecause Preferencescreen can be clicked in, click on the option, you can see the checkbox.Then look at listpreference, generally embedded in the preferencescreen used, looks comfortable, the code is as followsPreferencescreenAndroid:title= "dialog-based preferences" > listpreferenceAndroid:dialogtitle= "Select one"android:entries= "@array/auto_update_frequency_entry"android:

Small white: Previously shared the use of viewstub tags. Is there any other way to optimize the layout of Android?Black: First, the master needs a configuration file Activity_main.xmlOne more simple activity, file name Mainactivity.javaPackage Com.example.merge;import Android.app.activity;import Android.os.bundle;public class MainActivity extends Activity { @Override protected void onCreate (Bundle

change, if you want to change, it is better to change in the referenced file, we have modified in the include only the size of the referenced layout location.3. Use The Merge tab is used to eliminate the redundant view group that we produce when we include one layout to another. For example, there are two consecutive buttons in many layouts now, so we make the two successive buttons reusable (re-usable layout). When using the include tag, we must first organize the two buttons with a view group

"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"/> Button Android:text= "San"Android:id= "@+id/but02"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"/> TextView Android:id= "@+id/tvshow"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"/>Code@Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); Setcontentview (R.layout.layout_textview); View.onclicklistener Click=NewView.

Http://www.cnblogs.com/shirley-1019/archive/2013/04/10/3012824.html Very nice piece of code: public class Tabhosttestactivity extends tabactivity implementstabcontentfactory {private string[] lables = new string[] {"Home", "message", "friend", "more"};Private int[] icons = new int[] {r.drawable.ic_home, r.drawable.ic_msg, R.drawable.ic_friend, r.drawable.ic_more}; /** called when the activity is first created. */@Overridepublic void OnCreate (Bundle savedinstancestate) {Super.oncreate (savedinst

Transferred from: http://blog.csdn.net/xuewater/article/details/25687987When writing a string in a resource file, if the string is dynamic and indeterminate, we can use the xliff:g tag, but The resource file I wrote has always been wrong, such as:string name="chronometer_initial_format">initial format: "initial-format">%1$s string>The error hint is: Error:error parsing xml:unbound prefix, the first thought is the format string%1 $ s problem, removed the%1 $ s error remains.It will then directl

= "@string/stop_smart_config"Android:id= "@+id/btn_cancel_config"android:onclick= "Cancelconfig"/> Android:layout_width= "Wrap_content"android:layout_height= "Wrap_content"android:text= "@string/resmart_config"Android:id= "@+id/btn_re_config"android:onclick= "Reconfig"/> To introduce this layout in a mainactivity, add the following code to the Activity_main.xml:Android:id= "@+id/layout_loading"layout= "@layout/layout_progress"/>Above the Layout_progress.xml, set the visibility property: android:

Baidu map android sdk3.5 allows you to locate and jump to the specified coordinates and add tags A few days ago, I downloaded the new Baidu map sdk, version 3.5, and found that the Baidu map api has changed significantly. Similar to version 3.0 However, setting the map center and adding the maker tag have greatly changed. Set map center point // Define the map state zoom to indicate the zoom Level 3-18MapS

width and Android must be replicated: Layoutheight property to use other properties (such as Android:layout grivity, android:layout align ..., android:id, etc.) to avoid include refers to the layout effect of sub-component properties in layout that affect include : It is recommended that the include tag call layout settings, location, ID, and so on, be placed in the root tag of the call layout, which avoids the problems caused by impro

Android allows textview to support HTML tags for custom clock display components digitalclock The default digitalclock is displayed in seconds, and the font size in the morning and afternoon is as large as the time. The clock effect is to display only the time, updated every minute, and the font in the morning and afternoon is smaller than the number one. Use custom digitalclock and textview HTML functions.

= "Http://schemas.android.com/apk/res/android"Android:orientation = "vertical"Android:layout_width = "Fill_parent"Android:layout_height = "Fill_parent">Flag: Bit or operation. (1) attribute definition: (2) attribute use:Android:name = ". Styleandthemeactivity "Android:label = "@string/app_name"Android:windowsoftinputmode = "Stateunspecified |　stateunchanged | Statehidden "> Tips: You can specify multiple types of values when y

Transferred from: http://blog.sina.com.cn/s/blog_62f987620100sf13.htmlThe An example will be used to understand what the tag actually does, so you can get a more intuitive view of Create a simple layout that contains two views elements: ImageView and TextView By default we place these two elements in Framelayout. The effect is to display a picture in full screen in the main view, then display the title on the picture and below it. The following is the XML code:"1.0" encoding="Utf-8"?>"Http://sch

Use of include tags in androidTransferred from: http://blog.sina.com.cn/s/blog_a364999b01017gxi.htmlThe include tag in Android is a good solution to facilitate the overlay of controls.But there are some areas to be aware of, the following is the project I have encountered a problem, to do this record, easy to see later.Include label usage.1. Create a new XML file, name Head.xmlThe contents of the Head.xml f

Xmlns:android= "Http://schemas.android.com/apk/res/android" >Or a property that overrides its contents id-->Call the layout ID that follows it. With include, you can refer to the layout id attribute in an include afterApp_title App_tradelogin App_bottom Three each represents a layout fileUse of include tags in android

The An example will be used to understand what the tag actually does, so you can get a more intuitive view of Create a simple layout that contains two views elements: ImageView and TextView By default we place these two elements in Framelayout. The effect is to display a picture in full screen in the main view, then display the title on the picture and below it. The following is the XML code: XML version = "1.0" encoding = "Utf-8" ?> Framelayout xmlns:android = "Http://schemas.android.com/apk/re

com.example.declarestyleabletest;Import Android.content.Context;Import Android.content.res.TypedArray;Import Android.util.AttributeSet;Import Android.widget.TextView;public class MyTest extends TextView {Public MyTest (context context, AttributeSet Attrs) {Super (context, attrs);TypedArray Tarray = context.obtainstyledattributes (Attrs,R.styleable.first);String name = tarray.getstring (r.styleable.first_name);int age = Tarray.getint (r.styleable.first_age, 100);int dimen = Tarray.getint (r.styl

The TextView in Android itself supports part of the HTML format tag. This includes commonly used font size color settings, text links, and so on. It's also easier to use, just use the HTML class to convert it. For example: Textview.settext (html.fromhtml (str)); However, there is a situation where the default supported labels may not be sufficient. For example, we need to click on a link in the TextView, return to an application in an interface, not

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public class Bluetaghandler implements Html.taghandler {private int sindex = 0;private int eindex=0;Private final Context Mcontext;Public Bluetaghandler (Context context) {Mcontext=context;}public void Handletag (Boolean opening, String tag, Editable output, XMLReader XMLReader) {TODO auto-generated Method Stubif (Tag.tolowercase (). Equals ("Blue")) {if (opening) {Sindex=output.length ();}else {Eindex=output.length ();Output.setspan (New Bluespan (), Sindex, Eindex, spanned.span_exclusive_exclu

Let's take a look at the effectOn the CodePackage Com.zph.view;Import Android.content.Context;Import Android.graphics.Canvas;Import Android.graphics.Color;Import Android.graphics.Paint;Import Android.graphics.Path;Import Android.util.AttributeSet;Import Android.widget.TextView;public class Rotatetextview extends textview{public RotateTextView(Context context) { super(context);}public RotateTextView(Context context, AttributeSet attrs) { super(context, attrs);}@Overrideprotected void onDraw