Details about the screen direction and display mode when the Android Activity is running. androidactivity
Currently, our mobile phones generally have built-in orientation sensors. The mobile phone screen will automatically switch between the
No exceptions are captured during APP-level processing, while the APP-level processing captures
Preface:
The project APP sometimes has Crash, and then the system forced exit dialog box pops up. Click close app.
Some apps handle this and find that
How to Create Menu 3: Android Development 2, menuandroid
Three menu creation methods
I. OptionsMenu --- option menu
Menus in Android applications are hidden by default. Menus are displayed only when you click the MENU key on your mobile phone. This
Json generation and resolution, Json generation and resolution
JSON is commonly used for data interaction with the server. "{}" in JSON indicates JSONObject, and "[]" indicates JSONArray.
Json data is as follows:
1 {"singers": [2 {"id": "02",
Fun Handler and fun Handler
Let's take a look at a simple message first.
privateProgressBar mProgressBar;
privateint i =0;
PrivateHandler mHandler = newHandler () {// create a Handle
@Override
publicvoid handleMessage(Message msg){
Android Studio multi-channel packaging and androidstudio Packaging
The multi-channel packaging described in this article is based on umeng statistics.
Multi-channel packaging steps:
1. Set dynamic channel variables in AndroidManifest. xml
Use Chrome to remotely debug the WebView program on GenyMotion, genymotionwebview
WebView allows us to easily use the familiar Html, JS, and Css to develop apps. However, when a problem occurs, it is not as convenient as troubleshooting on the PC.
Let's talk about LoveLive SIF, the upcoming LL exercise, and lovelivesif.
Due to the needs of the courses and their own needs and the needs of the majority of roller, I will create an Android app for the benefit of roller in the world this semester.
(GO) Android learning notes ② -- basic knowledge of creating HelloWorld, androidhelloworldDevelop the first application
Can I develop my own applications? Okay! Let's Start. First click Start a new Android Studio Project to create a Project:Next,
Android studio incremental upgrades on Mac and Windows platforms, macandroidstudioWhen is the incremental upgrade of Android Studio the most suitable?
For example, if the current as version is 2.2 and your as version is 2.0, Check For Updates will
Resolve the implementation of ListView linkage-like the ELE. Me ordering interface, listview LinkageI. Origin of blogs
Great God Wang Feng egg before a blog copy hungry order interface 2 ListView linkage (http://www.cnblogs.com/wangfengdange/p/588606
Android Network request library volley method details, androidvolley
Using volley for network requests: you must first import the volley package to androidstudio.
Project Structrue under File, click the plus sign to export the package
Volley
Activity details 3 Start activity and return results. activity detailsFirst, let's take a look at the demo:
1 Overview
To get the data returned after the Activity is closed, use the startActivityForResult (Intent intent, int requestCode) method
Activity details 2 activity data transmission, activity details
First, you can see:
1. Functions of the Bundle class
The Bundle class is used to carry data. Similar to Map, it is used to store values in the form of key-value Name-value pairs.
Android Development notes-pass class objects through Intent, androidintent
In Android, Intent provides two methods for passing objects: one is to pass objects through the Serializable interface and the other is to pass objects through the Parcelable
Android-personalized progress bar and android-progress bar
1. Case studies
2. Prepare materials progress1.png(78*78) progress2.png(78*78)3. PrinciplesUse an image as the background image of the
Difference between dip, dp, sp, pt and px in Android, androiddip
Dip: device independent pixels (device independent pixel ). different devices have different display effects, which are related to the hardware of the device. We recommend that you
The first day of blog activation (android (java) common exception information first, androidjava
Common exceptions:
Java. lang. AbstractMethodErrorIncorrect abstract method. Thrown when an application tries to call an abstract method.Java. lang.
Linux0.11 kernel-buffer mechanism analysis, linux0.11 Buffer
The file system contains too many files and is a copy of the MINIX file system. The buffer mechanism is closely related to the file system, so we will analyze the buffer mechanism
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