The example in this article describes how the Android operation SQLite the database under the Assets folder. Share to everyone for your reference. Specifically as follows:
Because this project needs to bring data, so put the data into a SQLite database file, then put the file under the Assets folder. The first plan is to copy the
Baidu Cloud software users to the detailed analysis to share the Baidu Cloud Android version of the new folder method.
Method Sharing:
Click menu to select a new folder.
Well, the above information is small made up to you Baidu cloud of this software users to bring the detailed Baidu cloud Android ver
Android will export the jar into the Android dependencies and Android Private libraries two kinds, The goal is for developers to choose, but in general these two must be scored apk! second, the package of the project
This package includes the project's class package, as well as the creation of a variety of tool class packages; the various packages
Reference from (54090891)Android Resource file storage:The Android drawable file can have:drawable-ldpi (Low Density) drawable-mdpi (medium density) drawable-hdpi (high density) drawable-xhdpi (ultra high Density)DRAWABLE-XXHDPI (ultra-high-density) drawable-xxxhdpi (ultra-ultra-high-density) drawable-nohdpi (no scaling) of course plus the default drawable----------The following is the key to understand the
(Conversion) drawable (ldpi, mdpi, hdpi, xhdpi, and xxhdpi) in the android res folder ),Drawable (ldpi, mdpi, hdpi, xhdpi, and xxhdpi) in the android res folder)
(1) The drawable-hdpi contains high-resolution images, such as WVGA (480x800) and FWVGA (480x854)
(2) drawable-mdpi stores medium-resolution images, such as H
The active folder is introduced by SDK1.5 and allows developers to publish ContentProvider, such as contacts and media data, on the desktop of a device. The active folder in Android serves the ContentProvider as the RSS reader for publishing websites.The working principle of the active folder is as follows:(1) Create a
Android custom control styles are implemented in XML in the drawable folder
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The android custom control style is in the XML file in the drawable folder. In the layout file, you can set the control's background
1. Because you need to delete files, you need the following permissions:
2. Core code
[Java]Package com. example. deleteyoumi;Import java. io. File;Import android. OS. Bundle;Import android. OS. Handler;Import android. OS. Message;Import android. app. Activity;Import android
1.SRC: Store all the *.java source programs.2.gen: Save path for automatically generated code file for ADT plug-in, R.java will save all resource IDs.3.assets: Can hold the project some large resource files, such as: pictures, music, fonts and so on.4.res: Can store all the resource files in the project, for example: Pictures (*.png, *.jpg), text, etc.5.RES/DRAWABLE-HDPI: Save a high-resolution picture resource, you can use Resources.getdrawable (ID) to get the resource type.6.RES/DRAWABLE-LDPI:
A Real-time folder is a desktop component used to display data information provided by a ContentProvider. To create a real-time folder, you must have two support options. On the one hand, you need to define an Activity for creating real-time folders. On the other hand, the ContentProvider of the specified data information URI must support real-time folder query.
I have just read a simple Android example of the next frame layout. After a long time, I don't know how to add the image to the drawable in the resource.For example, how to add a new image resource in the Res/drawable folder of testdemo.
Copy the image to bin \ res \ drawable-hdpi orBin \ res \Click drawable-mdpi and refresh the image in eclipse.
I found a solution for loading image resources online:
densities and automatically matches according to the screen resolution.If android:anydensity= "false"The application supports different densities, and the system automatically scales the image size and coordinates of the image. Explain how the system automatically scales resources.For example, if we have the same resource under the Hdpi,mdpi,ldpi folder, then the application will not automatically go to the appropriate
This example describes the Android real-time folder creation method. Share to everyone for your reference. Specifically as follows:
A live folder is a desktop component that is used to display data information provided by a contentprovider. To create a live folder, you must have two supports. On the one hand, you defi
From the previous article "Android screen adaptation to the full guide" after writing, often a friend asked me this question: "Can an app only provide a set of graphs to adapt to all the resolution?" "I think it is necessary to write an article to study the problem, so there is this article."
Research content
Research methods
Test environment
Research process
Results analysis
Conclusion
A
Accidentally found that the project folder for Android Studio is much larger than the ADT bundle.Create a new empty project with Android Studio, with a project folder size of 30M and a size of 40M after running once.Also use ADT bundle to create a new empty project, the project fol
Today began to enter the Android development, has been to do some Java webservice and other files, the first time to start from scratch Android project, I will have recently encountered the problem of one by one comb.Now let's take a look at the various folders created after the Android project. When we set up a basic Android
Not a few words, first glance:Next we start to write an app test:1. New Android Project: Fileselectortest2. Change Mainactivity:In the inside write four TextView analog button, is the file single-choice, file multi-Select, Folder path single-selection, folder path multi-select, and then rewrite TextView Click event into fsactivity, incoming parameters, different
This is a simple Demo. The purpose is to read a folder to generate a thumbnail and click to display a large image.
Create a new project, create a ThumbnailsWindows class, and inherit LinearLayout. The Code is as follows:
[Java]Import java. io. File;Import java. io. FileInputStream;Import java. io. FileNotFoundException;Import java. io. InputStream;Import java. util. ArrayList;Import java. util. Collections;Import java. util. Iterator;Import java. util
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