1. JNI OverviewJNI is the abbreviation of Java Native Interface. It is translated into "Java local call" in Chinese, and JNI is a local programming Interface. It enables the Java code running inside the Java Virtual Machine (VM) to interoperate with
Background:
In the previous article, the effects and the starting interface of continuously throwing fruit are realized. This article analyzes how to cut fruit and get scores. To run the demo, you must configure CocosEditor. Other tools are not
Android multithreading is actually java multithreading. The android UI thread is also called the main thread.
First, Thread and Runnable:
A Thread is a Thread, and Runnable can be understood as a task. This task is just an interface. The specific
In the previous example, we finally found that there is only one thread used, that is, the main thread (UI thread) of the program ). So how can we change this example to a new thread? Today I tried and wrote the following small program.
Of course,
If the aapt tool is not available, run the following command first:
Cd $ ANDROID_HOME/platform-tools
Ln-s ../build-tools/19.0.0/aapt
Ln-s ../build-tools/19.0.0/lib
Ln-s ../build-tools/19.0.0/aidlTest: $ aaptAndroid Asset Packaging ToolToo many
The user's circle of friends will find that after clicking a comment, the input box will pop up, And the clicked item will automatically scroll to the position above the input box, in this way, the comments that are clicked at the very bottom of the
Asynchronous Network:
1. add permissions:
2. Supported typesJSONObject
JSONArray
String (HTML, XML)
XmlDom (XML parsing)
XmlPullParser (Large XML files)
Byte array
User defined custom type (Transformer)
Bitmap
3. Take Json data as an example.
Next, although this is useless for rotation, it does not mean it is useful. If an Activity is not specifically declared in onReusume, or is not in AndroidManifest. xml is configured as a horizontal or vertical screen. The declaration period during
Android deep analysis selectorThe selector class is similar to the shape class, which is used to set the properties of the control in an xml file and then reference it. The basic attributes of selector are as follows:
Project requirements: 1. Create a system application TestAPP. The application starts a service after it is started. The service provides data interfaces for other applications.
2. Add a method to the acitivity source code and call the TestAPP method
This article from http://blog.csdn.net/yihongyuelan reprint please be sure to indicate the sourceThe code in this article takes the MTK platform Android 4.4 as the analysis object, which is somewhat different from Google's native AOSP. Please be
As shown in the preceding figure, in addition to excellent TCP/UDP support for the transport layer, Android also provides good support for HTTP (Hypertext Transfer Protocol, there are two interfaces:
1. standard Java interface (java.net) ----
Error Handling: Internal Error (classFileParser. cpp: 3494)
In the Android project, you need to run a Java program to obtain information for development. However, an error is reported during running. The error message is as follows:
## A fatal
Known as Native Development Kit, NDK is a set of local Development tools. In Android development, sometimes in order to better reuse the previous C/C ++ code, you need to compile the code into the corresponding so, and then use JNI for upper-layer
In fact, it seems that I don't know how to implement it. In fact, the system's intent is called to complete the installation.Case-driven:
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public void onSuccess(File t) { // Replace the
This article is a casual talk about how we can build a good architecture during the initial stage of project initialization in Android development.I don't think there is much talk about the android architecture because of mobile phone restrictions.
For online installation of android_apk, in addition to designing the Android client code, we also need to build the server code and simulate the online upgrade of Android software.
The Android client code is as follows.
MainActivity
Package com.
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