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Recently started Android development, because never used Java before, even the basic grammar to start from scratch, so not very smooth. There was an issue with how to reference jar and so files when trying to use the Baidu speech recognition engine. After Google plus a number of attempts, found a relatively simple method, described below.I. Referencing a JAR file1. Copy and paste the jar file into the Libs
successfully)Well, in DDMS you will find that the read and write permissions of the SDcard directory have been modified. The import of the file in it can be successful.Common errors:1.Failed to push items nullWorkaround: This time requires a reboot of eclipse orADB rootADB remountIt's OK when you're done.2.Could not find sdk_root\tools\adb.exe!The possible reason is that the downloaded SDK version is too n
[Android Notes] Unable to execute dex: Multiple dex files define solution, androiddex
Problem:Frequently needed in projectsAdd third-party jar packages. An error may be reported during compilation after a new jar package is added.Unable to execute dex: Multiple dex files define.
My error message is as follows:
1 [2015-06-11 09:54:32 - Dex Loader] Unable to execut
How does an Android mobile phone transmit files through Bluetooth?
Actually passedBluetoothTransmissionFileThisFunctionIt was also implemented recently. Previously, the Bluetooth function of Android was embarrassing because it can only connect to BluetoothHeadphonesNow you haveBluexOfSoftwareSolutionThe problem of Bluetooth transmission.
I. Sending of B
When developing with Android studio, Test with a real phone and find that the generated files will not be found.Here is the abbreviated code for the first time I encountered this problem.publicclassmainactivityextendsappcompatactivity{@ Overrideprotectedvoidoncreate (bundlesavedinstancestate) { super.oncreate (savedinstancestate); setcontentview (r.layout.activit
files.
Put the JSON file you want to use in the Extract directory (you can download the JSON example to http://www.json-schema.org/address):
Then, at the command line, enter:
Jsonschema2pojo--source Address--target Java-gen
You can enter the-HELP option to view additional parameters:
Jsonschema2pojo–help
For some non-standard JSON files, you need to include the
Environment: 1. system: window72.android version: 2.23.eclipse3.5.2 (Galileo) I. Basic flowchart (writing files) II. simulator running interface 1. main Interface 2. save (non-conforming) 3. save normally 4. read files 5. editor 3,
Code 1. save the main code of the file. Save the main code 1 bsave. setonclicklistener (new view. onclicklistener () {2 3 @ override
Well, I've thought about not moving Android in the future, but I didn't think it was the reason for the game. Many of the problems with Android are due to eclipse's imperfections, such as the one encountered today unable to execute Dex:multiple Dex files define
[2011-10-23 16:23:29-dex Loader] Unable to execute Dex:multiple Dex
[Android] defines drawable arrays and id arrays in xml files, and androiddrawable
If we need to set a group of image resources for a group of views in the Code (for example, when setting a group of corresponding images for all items in listview/gridview ), we can define a set of drawable arrays in xml that represent images and then read them using code.
At first, I did this:
Then try to call getResources
Solve the problem that the android jni project will delete other so files
During Android project development, jni is used in the project, and C/C ++ is used to write its own so library. debugging and running are all normal. The Android. mk file code is as follows:
LOCAL_PATH := $(call my-dir)include $(CLEAR_VARS)LOCAL_
Android Studio project, files that can be ignored when submitting to SVNWith the Times, the project to use Androidstudio development, nothing, can only look around the information, 1.1 points groping.Write down what you find here.Androidstudio Many files do not need to be submitted during project management, avoid proj
1.src file: Java source Code Storage directory2.Gen File: Automatically generate all files automatically generated by Android development tools, the most important in the directory is the R.java file, which is automatically generated by the Android development tool. The Android development tool will automatically updat
Now Android Studio is already 1.x version, its function is also more and more perfect, personal feeling as still good use, now is also more and more companies to use as, easy to use is a factor, Google officially does not support Eclipse is also a factor, regardless of it, anyway is to use as, exactly, before the time , my company is also turning to as. After a while, think about it or write down this article and share the issue of the NDK compilation
It is painful that Android cannot generate r files, even if there are times when you have no errors in the XML file. To solve this problem, I summarize the following reasons.
One. XML itself has errors
R.java This file is automatically generated, but if you accidentally write the XML file incorrectly, or accidentally click Run when editing XML (in fact, this time will run this XML file, will generate an X
The person who pays attention will find that in the process of generating the SQLite database file on the SD card in Android, the next side of the generated. db file is found.A. db-journal file with the same name as the database file was generated with a size of 0 and did not understand the purpose of the file, soGoogle has the official SQLite document, found that the purpose of the file is as follows:This
R.java This file is automatically generated. But sometimes when you write the wrong XML file, R.java does not automatically generate the corresponding value. This time we will be very accustomed to clean this project, this time will suddenly find that R.java unexpectedly disappeared. At this time you must be very angry, you may be desperate to find answers online, there will be many answers to tell you righ
1. When we use the control, sometimes it is unavoidable to declare the ID for the control, and scattered in the various XML files, sometimes it is not particularly convenient to find, so, Android has provided us with the Ids.xml file, saved in Res--valuse--Ids.xml In the file2. Benefits of using the Ids.xml file 1. Convenient naming, we can put some specific c
Android Studio files and code templates, and the problem of Chinese errorHan Mengfei SandAuthor:han_meng_fei_shaEmail: [Email protected]e-mail:313134555 @qq. comAndroid Studio after the Chinese, error.Unable to find resource for bundle Java Util Property resource bundle, key Emmet Bem class name element delimiterCan ' t find
Learn Android Review Java basicsBecause the project needs to refresh yesterday's article, so before clicking on an E-magazine, the way to create a new XML file is not right, because the E-magazine is different from the news, not always updated, so one update, so I need to download a copy of its RSS every day The source XML file into the project (once actually wanted to download the SD card to the phone), file naming format with time Plus magazine name
An example of this article describes the way Android programming gets sdcard music files. Share to everyone for your reference, specific as follows:
Copy Code code as follows:
Cursor query (Uri uri, string[] projection, string selection, string[] Selectionargs, string sortOrder);
Uri: Indicates the name of the database to query, plus the name of the table, from Mediastore we can
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