android r id findclass jni

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Your content must have a ListView whose id attribute is 'android.R.id.list' solution

This error message is very clear in setContentView (R.layout.main) set the layout of the page where the lack of an id for the android.R.id.list the ListView control, the solutions are as follows: In main.xml page, add the following code: <ListView andr

Your content must have a ListView whose id attribute is android.R.id.list '

The solution is: ListView's id to the tag "android: id / list" Note: "/" followed by the name of casual play, no effect

android.R storage location corresponding to the resources

Android has a series of default such as layout, drawable, id, and other resources to facilitate the users. But in the API documentation, often only the resources of the int constants, there is no detail. So, do not know all constants corresponding to what

Android those thing in JNI programming

Android those thing in JNI programming First of all that, Android system does not allow use of a pure C / C + + program appears, it requires Java code to be embedded by Native C / C + + - that is the way via JNI to use the local (Native) code. Therefore,

android.R.layout difference with R.layout

android.R.layout refers to internal resources; R.layout generally user-defined project under the res in the path of the folder.

Android ™ 1.6 android.R.drawable Icon Resources

Android comes with a lot of icons in the system, we can easily use the program, Android ™ 1.5 android.R.drawable Icon Resources http://since2006.com/android/1.5-drawables.php Android ™ 1.6 android.R.drawable Icon Resources http://since2006.com/androi

android R.java file missing how to re-build solutions

1. Do not restart Eclipse, do not create your own class files R.java 2. Right-click your project (Project) -> Android Tools -> Fix Project Properties Will once again create the R file, data is not lost

Turn-Android Native (Native) C (JNI / NDK) development of the two: framebuffer articles

To facilitate future study and work, are reproduced a number of articles for later use. Source: http://blog.sina.com.cn/s/blog_4a0a39c30100auh9.html of: Wind sub- If Android native (Natvie) C development is also in doubt, please refer to the " Androi

Android framework of the JNI implementation process of source

Android framework of the implementation source code in the JNI call JNI technology processes and deepen understanding. 1..frameworks/base/core/jni, writing native code (cpp) 2. Modify the frameworks / base / core / jni / Android.mk, the native code c

Turn-Android Native (Native) C (JNI / NDK) the development of: environmental structures Posts

To facilitate future study and work, are reproduced a number of articles for later use. Source: http://blog.sina.com.cn/s/blog_4a0a39c30100auh9.html of: Wind sub- Android is based on the Linux operating system, ARM processor, so in Linux or Windows and ot

android Study Summary 3

1 activity can be inherited extended ListActivity For example: class DummyNote extends ListActivity ( private String [] note_array = ( "gasolin", "crota", "louk", "magicion" ); ListAdapter adapter = new ArrayAdapter

MP3 player of small applications (and writing to learn Android 1)

"In the information age, the objective obstacles no longer exists, the so-called barriers are subjective. If you want to develop any new technology, you do not need millions of dollars, you only need to put in the refrigerator full of pizza and Coke,

Play MP3's small application (one side was learned Android)

"In the information age, the objective obstacles no longer exist, the so-called barriers are subjective. If you want to develop any new technology, you do not need millions of dollars, you only need to put in the refrigerator full of pizza and Coke,

Android Data Storage

In Android, the alternative storage methods are SharedPreferences, file storage, SQLite database mode, the content provider (Content provider) and network. 1. SharedPreferences way Android available to store some simple configuration information of a mech

Android based Database Programming

Original Address: http://www.eoeandroid.com/viewthread.php?tid=391&extra=page% 3D8% 26amp% 3Borderby% 3Ddateline SQLite database In some cases, the file is not a valid multi-threaded data access if Ø is Ø -related applications that may change if the c

Android SQLiteDatabase use

package com.Aina.Android; import android.app.Activity; import android.app.AlertDialog; import android.content.ContentValues; import android.content.DialogInterface; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import

Android Developer notes 3: TextView text, automatic detection of hyperlinks and automatic completion

In Android in, TextView small example of some applications: package com.andy.android; import android.app.Activity; import android.os.Bundle; import android.text.util.Linkify; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextV

Android Developer notes 3: TextView automatic detection in the text of the hyperlink and automatic completion

In Android in, TextView small example of some applications: package com.andy.android; import android.app.Activity; import android.os.Bundle; import android.text.util.Linkify; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextView;

Android SQLiteOpenHelper use

package com.Aina.Android; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.database.sqlite.SQLiteDatabase.CursorFactory; /** * com.Aina.Android Pro_SQLiteDa

Android development of simple examples (second)

Notepad running example: Android environment with good, to continue to use yesterday's brief today after running a Notepad instance, in some understanding in addition to the Android. 1. Android running an instance, you can see the back of the log: And

Android ListView and ListAdapter

Displayed a ListView need three things: 1, listview (used to display the data list). 2, Data (need to display the data). 3, a bound Data and Listview adapter ListAdapter. 1, ListView 1, ListView every actually TextView. 2, by setAdapter way to call a list

Android ExpandableListActivity Study Notes

An activity that displays an expandable list of items by binding to a data source implementing the ExpandableListAdapter, and exposes event handlers when the user selects an item. That is, scalable list, click a item, the child can display a list. Its dat

Data sharing between applications Android-ContentResolver

Android is how to implement data sharing between applications? An application can be fully exposed to their own data, even the outside world do not see this application has not Kandao exposed how the data is stored, or use the database or use a file, or t

Android Eclipse plug-in TabHost problem

Android study week, when two days with TabHost encountered two problems: Question 1. When you run the Activity Your content must have a TabHost whose id attribute is 'android.R.id.tabhost' Add a Layout time, xml with element selection TabHost

$ Android $ --- How to use the TAB

android tab in the use of two ways: A direct inheritance TabActivity, as ListActivity general 2 Use TabHost control (usually custom special pages, such as: wish to display some basic information and then display the following number of TAB, mainly fo

android list view component ListView Xiangjie

ListView android development in a more common component of the form it displayed a list of specific content, and adaptive to the length of the data shows. Find time to make use of the ListView do organize, and write a small example, as shown below. List d

Android recent study concluded - Development Notes

First, the commonly used categories: 1. Activity is the most basic class that represents a display page. Similar to a Servlet, you can display the page, capturing the event, display the menu, such as dealing with complex user interaction. 2. Intent refers

android access to the database (b)

III. Design activity, this is no longer say, difficult to say in the program. public class SQLiteTest extends Activity { / ** Called when the activity is first created. * / private TextView textView; private Spinner dSpinner; final String databaseName =

[Android developers] Android ExpandableList routine collapsible list view

In the Android development process, we hope to implement a collapsible list view, is very simple, the routine is to explain the dynamic creation collapsible list view. Since the local system is the Japanese system. Eclispse garbled write comments. No

android SQLite database example of basic operation

This example implements a complete example of database operations. First run the project, initialize the database (create database, create tables); and then click the left arrow key to insert a data table, press the right arrow key to delete one data, pre

Android on the significant progress bar control TextProgressBar text

Android default progress bar control system design is not very comprehensive, such as the display does not contain text, how the progress bar control in the Android display text on it? Code from Google to understand the internal, the main use of such

Android instance - Personal Financial instruments A three-page bill to add

Key words: android sdk1.0 sqlite intent ExpandableListActivity SimpleCursorTreeAdapter cursor custom dialog Registration of income and expenditure records ColaBox finally entered the stage of the complex. I also find the interface a lot of information and

Android example - add personal finance tools four page bill B

This week, I consider the interface to add the entire bill, the completion of the page features. Did find it very easy. But in the interface layout to find out is simply harder than writing code. The layout is basically no useful information to google, an

Detailed android ListView

In the ListView android development is more commonly used components, it shows a list of the specific content of the form, and adaptive to the length of the data display. The use of the ListView for taking the time to do the finishing, and wrote a small e

Custom tabhost style android

public class CustomTabhost extends TabActivity { / ** Called when the activity is first created. * / @ Override public void onCreate (Bundle savedInstanceState) { super.onCreate (savedInstanceState); int width = 45; int height = 48; final TabHost tabs = g

2010.12.29 --- android listview ExpandableList scalable

2010.12.29 --- android listview ExpandableList scalable Directly on the code, we look at it relatively simple to understand package com.huitu.project; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; impor

Android ExpandableListActivity study notes (reproduced)

An activity that displays an expandable list of items by binding to a data source implementing the ExpandableListAdapter, and exposes event handlers when the user selects an item. That can be extended list, click on a item, the display can be a sub-list.

Android application of common errors

First, the error: Unknown host api.tudou.com, throwing UnknownHostException. The solution: Add in the AndroidManifest.xml <uses-permission android:name="android.permission.INTERNET" /> Second, Unable to find explicit activity class have yo

Android development of a number of important points online

From network 1. Android Single Instance Methods We all know that Android platform is not the task manager, and defenders within the App Activity history stack to achieve a window display and destruction, for the conventional view is from the shortcut to r

android intent and intent-filters

This is the original relentless snow, reprinted Please indicate the source: http://flysnow.iteye.com/blog/961576 Android Development Technology Exchange Group 86,686,524 (full) please add 120,059,404 Wrote Read the previous sections should be tutorial wil

Android control of the Gallery images

I. Introduction Locked in the center, the level of the display list items. Second, the examples 1. Layout file <? Xml version = "1.0" encoding = "utf-8"?> <LinearLayout xmlns: android = "http://schemas.android.com/apk/res

PopupWindow use and extension of

PopupWindow [Function] As a reminder PopupWindow users and their overhead is smaller than Activity [Code Step] 1. PopupWindow custom layout for use, such as: hello.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://sch

Cursor operation

Cursor To apply, for example such as: name query system contacts with "e" at the beginning of the list of 1. ContentResolver obtained through the records of all contacts 2. Check all the names in order to "e" at the beginning of t ...

Show contacts, and talk about a contact added to the group inside, or a phone call from contacts Forensic

public Uri addToGroup (long personId, long groupId) ( this.removeFromGroup (personId, groupId); ContentValues values = new ContentValues (); values.put (ContactsContract.CommonDataKinds.GroupMembership.RAW_CONTACT_ID, personId); values.put ( Contacts ...

Import pictures to add picture and search for music

1. String filename = String.valueOf (System.currentTimeMillis ()); ContentValues values = new ContentValues (); values.put (Images.Media.TITLE, filename); values.put (Images.Media.DATE_ADDED, System.currentTimeMillis ()); values.put (Images.Media.MIM ...

ListActivity show List <Obejct>

-------------------------------------------------- ------- listTitle <String> setListAdapter (new ArrayAdapter (this, R.layout.rsslist_item, listTitle)); -------------------------------------------------- ----------- list <items> public c ...

Show contact and talk to the group inside a contact or a phone call from a contact in forensic

public Uri addToGroup (long personId, long groupId) ( this.removeFromGroup (personId, groupId); ContentValues values = new ContentValues (); values.put (ContactsContract.CommonDataKinds.GroupMembership.RAW_CONTACT_ID, personId); values.put ( Contacts ...

PopupWindow use and extend

PopupWindow [Function] PopupWindow as a user to remind that its overhead is smaller than Activity [Code Step] 1. PopupWindow custom layout for use as: hello.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.an

Reference to sum up the use of system resources and the receipt of a notification message to prompt after

1. reference code uses android.R.id xml

Reference to the use of system resources, after summing up and receive text messages to a notification prompt

1. reference code uses android.R.id xml
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