Android

Android file access permission in four modes: android Linux file access permission* In Android, each application is an independent user.* Drwxrwxrwx* 1st-bit: d indicates a folder and-indicates a file.* 2-4 bits: rwx, indicating the permission of

Android Practice Notes (6): GridView click the blank area event extension, androidgridview   We usually respond to the click Item event in ListView or GridView, but many times we also You want to listen to the events in the blank area for more

Android volume adjustment control and android volume adjustment based on the View function customized by Hongyang blog   1. Create attrs. xml in values and write out the required attributes:  

[Practice] Android5.1.1 source code, android5.1.1 source codePreface In this article, we need to modify the Android source code. However, as long as the system service is written, the system_server process can be injected to load the system service

ActivityUI thread conflicts with Timer, activityuitimer A new music player is created. Timer and TimerTask are used to implement seekbar: In OnDestory, I deregistered the player but did not care about Timer. So when the program exits and Timer

Android buttons and android buttons This document records four button-based click events. First Public class MainActivity extends Activity {@ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState);

Android 6.0 obtains the WRITE_SETTINGS permission and writesettings permission. Android 6.0 cannot be written only in AndroidManifest, and must be opened manually.Private void setBrightnessMode (Context context, int mode) {try {if (Build. VERSION.

Android UI development and androidui Development Today I learned a few things about Android UI development.  RelativeLayout LinearLayout FrameLayout frame Layout-Commonly Used in Game Development, player, and scratch GridLayout grid

Android image performance optimization, This chapter describes how to optimize image processing in android development. Including big Image loading, Image compression, Image cache processing, and the open-source Image Processing Framework

ClassLoader and Android classloader I don't like General talk about those metaphysical principles, or remember those established things. People who rely on memories to make up for thinking are easy to fall into the cloud of people. In the end, they

RxJava and RxAndroid 2, rxjavarxandroid Friends who do not know about Rx can read my first blog posts RxJava and RxAndroid, which is a basic introduction to Rxjava.  1. merge operator, which combines observed objects 1 package app.com. myapplication;

Android development: AndroidStudio-based environment construction and project Creation I have been learning Android for a while. Because it was developed for iOS, for previous blogs about iOS, please read "My iOS development blog series", "My

Let's learn about android custom control 3 -- View of edge concave and convex, androidviewPreface Recently, when I was working on a project, I encountered the effect of a card chart. I felt that the adaptation effect would be poor if I used images.

Five la s for Android and five la s for android 1. LinearLayout linear layout:Common attributes:Subclass control layout: android: orientation = "vertical"/"horizontal" vertical or horizontalPosition of the subclass control in the layout: android:

Use TimeUnit, use timeunit TimeUnit is a class in the java. util. concurrent package, indicating the time period of the given unit granularity. Main functions Time granularity Conversion Latency  Common Granularity TimeUnit. DAYS // day TimeUnit.

[Android] mobile guard blacklist function (ListView optimized), androidlistview The previous article recorded that 100 pieces of data were displayed using ListView. When dragging slowly, there will be no problem, but when dragging fast, the

Use the android studio gsonformat plug-in to quickly parse complex json and gsonformatjson During android development, json Parsing is inevitable. In this article, you can quickly parse complex json. First, install the gsonformat plug-in android

Android-converts an object class into a base class of Json and Map, android-json Package com. newair. talk. base; import android. text. textUtils; import com. google. gson. gson; import java. lang. reflect. field; import java. util. collections;

Android Baidu map positioning development, android Baidu Map I. activity Import android. app. Activity; Import android. graphics. Point;Import android. graphics. PointF;Import android. OS. Bundle;Import android. OS. Message;Import com. baidu.

[Android] mobile guard receives a call broadcast display number from the home location, android guard Use the broadcast receiver to receive the call intention and display the phone number attribution   Create an OutCallReceiver class to inherit the