Today, we mainly implement our main interface: international practices:
We have already completed the interface on the first day. Today we will implement the interface function,
This interface provides the following functions:
1. display the difficulty of the game: Use popupwindow and select and change the displayed number.
2. display the default picture to be jigsaw puzzle, including a custom image: This is relatively simple, just the simplest appli
screens, multiple applications, and multiple users mentioned above.
Before the analysis, I summarized five principles of Interactive Design:
1. Reduce the visual pressure. Simplified text
2. Reduce the thinking pressure. Regular icon, less choice
3. Reduce memory pressure. Consistency, using the "7±2" and "Block" principles,
4. Reduce the movement pressure. Dis
Compile the JNI method for the hardware abstraction layer (HAL) module of Android in Ubuntu to provide the Java access hardware service interface (Lao Luo study note 4), androidjni
In the last two articles, we introduced how to write drivers for Android hardware, including how to implement kernel drivers in Linux kernel space and Hardware Abstraction Layer interf
QtAndroid details (4): JNI calls Android system functions (1), qtandroidjni
In the previous sections, we have explained the basic usage of the QtAndroid namespace. This time, we will use the methods and class libraries we mentioned earlier to demonstrate some simple small examples. In my book Qt on Android core programming, I mainly call some
choose the above one to download so that you even Eclipse is not required, but beyond what is covered in this document. 4. Download ADTADT, the Android development tools(Android development tool), is the development of Android in eclipse The plugin for the application. Website: http://developer.android.com/sdk/install
Development:
Efficient
Consider a limited capacity
Design for different screens
Consider low rate, high latency
How much will it cost
Using Android virtual devices, emulators, and other development tools 1. Android Virtual Device ManagerCan be set:
Virtual machine Maximum Heap size
Pixel density of the screen
SD card support
Do you have hardware such as
After completing the previous lesson (creating a simple user interface), we already have an app (app) that shows an activity (an interface) that contains a text field and a button. In this lesson, we will add some new code to the MyActivity start of a new activity when the user clicks the Send button.Response Send button1 Open the Content_my.xml file in the Res/layout directory in Android Studio.2 Add the A
does it correspond? This will continue to look at the directory structure of the current project. There is a "res" folder under the project directory, which mainly stores various resources of the application, the directories prefixed with "drawable-" are the directories for storing images, different directories are followed by different contents such as "hdpi" [2], "mdpi" [3], and "ldpi" [4, these director
resource ID
ImageView image = (ImageView) findViewById (R. id. ui_image3 );Image.SetImageResource (R. drawable. ic_launcher);
Method 2: Use Bitmap
ImageView image = (ImageView) findViewById (R. id. ui_image3 );Bitmap bm = BitmapFactory. decodeResource (this. getResources (), R.drawable.png 02 );// Here you can add the Bitmap Processing code ......Image.SetImageBitmap (bm );
Method 3: File
For the simulator, we place the image file in a certain posit
QtAndroid (4): JNI calls Android system functions (1)
In the previous sections, we have explained the basic usage of the QtAndroid namespace. This time, we will use the methods and class libraries we mentioned earlier to demonstrate some simple small examples. In my book Qt on Android core programming, I mainly call some Andr
is ignored.
To make the authority meaningful, scheme must also be specified. To make the path meaningful, scheme + authority must also be specified
[2] mimeType (specify the Data Type). If mimeType is 'image', the data of the Image type is obtained from the specified address of the content Provider. What about 'video'? If it is set to video/mp4, the video file in mp4 format is obtained from the specified address.
[3] pathPattern and PathP
for the special monsters. Monster Farm 2 There are some particularly rare monsters that can only be generated with certain disc images. For example, PS game parasitic on the eve of the B-plate, can generate metal liquid people, It's the T1000 in The Terminator, the cool one. It's definitely not a coincidence. Oh, a disc with Terminator 2 sound track can also spawn this monster . we try to spawn a monster w
Compile the JNI method for the hardware abstraction layer (HAL) module of Android in Ubuntu to provide the Java access hardware service interface (Lao Luo study note 4), androidjni
In the last two articles, we introduced how to write drivers for Android hardware, including how to implement kernel drivers in Linux kernel space and Hardware Abstraction Layer interf
So far, everyone must be familiar with using Toast to display information to users. Although Toast is easy to use, the notifications displayed by Toast are not permanently stored. It only shows a short period of time on the screen, and then disappears. If it contains important information, if the user does not observe the screen, the user will easily miss it.
A more persistent storage method should be used for important information. In this case, icationicationmnanger (Message manager) should be
set in the form of linear layout and relative layout nesting.2. Frame layout (FrameLayout)The principle is that any widget drawn in the widget can be overwritten by the widget drawn later. The last widget will cover the previous widget.3. Absolute layout (AbsoluteLayout)With the absolute layout, you can set the x y coordinate points of any control on the screen. The control drawn after the same frame layout overwrites the previously drawn control.
[Android UI design and development] 2. Guide interface (2) use ViewPager to implement the welcome guide page and androidviewpager
1. Implementation results
2. Preparations before Encoding
ViewPager is a new feature provided after Android3.0, so to make your application backward compatible, you must support the
to Apply trustzone technology to DRM.
Figure 4 Use trustzone to encrypt DRM
Now, we have discussedThe five challenges that android brings into the Internet digital family: Let's take a look at some comparisons between Android TV and googletv.
In fact,Arm partners can deploy Smart TVs with Android as the bas
July 26, Android P Beta 4 released (ie, Android P DP5), this version is the developer's last preview version, also indicates that the Android P official version is about to meet you.To ensure that developers are fully developed and tested before the advent of the official version, the application is successfully adapte
Android UI collection-1. Android Drawable Classification summary (2/3)
This section introduces:
In the previous section, we have learned about four Android Drawable, which are:
ColorDrawable, NinePatchDrawable, ShapeDrawable and GradientDrawable!
In this section, we will continue to learn the other five Drawable, whic
I have a glory 3C, usually put in the dorm (I carry a Nokia E63, small, stable, long standby time), in the dormitory I will use it in the public number of articles, recently to test driving license is also on the above with driving test treasure. Recently want to use these two software in the laboratory, but do not bother to bring mobile phones, and no PC version, driving the PC version of the book is temporarily unable to synchronize data, so I want to run the two software on the PC, search for
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.