Android

Recently in doing a project involves a simple web page containing pictures to download to the local, convenient to watch when offline, share here, you can make a simple change to use their own projects. (The Aquery library is used here.)

Several common methods of Android adapter are shared with the following details 1 When is the ListView set up to monitor the adapter data? In Setadapter (ListAdapter adapter), the data listening in the original Madapter in the ListView is

There are two ways to do this when you use the button to give the user a "down" effect:1. Inside the code. Copy Code code as follows: Imagebutton.setontouchlistener (New Ontouchlistener () { @Override public boolean Ontouch (View V,

First or the XML layout file, where you add the ListView control: Master Layout Layout_main.xml Copy Code code as follows: Xmlns:tools= "Http://schemas.android.com/tools" Android:layout_width= "Match_parent" android:layout_height=

Simulation of the News APP interface 1 write the layout before writing ListView: Here are two kinds of Item layouts: activity_item &l T TextView android:layout_width= "wrap_content" android:layout_height= "wrap_content"

Copy Code code as follows: Package com.action.android_test; Import android.location.Location; Import Android.location.LocationListener; Import Android.location.LocationManager; Import Android.os.Bundle; Import android.app.Activity; Import

Once a friend asked me a question, a 512*512 150KB png format picture and a 512*512 100KB compression ratio is 8 jpg format picture, loaded into memory, that is, loaded into a bitmap, which occupies a large memory? This question seems to be a little

1, through the Runningtaskinfo class judgment (need additional authority): Copy Code code as follows: /** * Determine whether the current application is in the foreground or in the background */ public static Boolean

The role of Android in all levels of directory1> directory Structure 1. Root directory:SRC Directory---Storing source code filesGen Directory---The files generated by the ADT plug-in (automatically generated)The Assets Directory---store the

At the 2015 IO Conference, Google brought us a more detailed design specification for material, and also brought us a brand new Android Support Library, in this Support Google provides us with a more standardized MD design-style control. Most

Mediarecorder There's no difference between taping and recording. Set the format of the image Reference: http://www.jb51.net/article/46182.htm Instance: Copy Code code as follows: Copy Code code as

First, introduce This class is inherited from ImageView, so for this control we can use all the properties of ImageView Ii. use of preparation, written in the Build.grade file of AS Third, the use of instructions In the

Whether it is Android development or other mobile platform development, ListView must be a big coffee, then the operation of the ListView is certainly not less, the last blog on how to achieve the full selection and the selection of functions, this

Development of the application will have some may become a value, such as WebService address application of some IDs, etc., has been directly in the application of the code, not forget the point that, then think of the properties can be used

Android Development We often need to use the dip, PX mutual conversion, get the phone screen width, height and status bar height, the following is based on the screen this piece of the collation of a class. Package

Sometimes we use the circular avatar in the application, the following is the use of circleimageview to achieve the circular head of the demo, the following effect and code, the effect is as shown The implementation is also relatively simple,

We all know that EditText and TextView are Android text input boxes and text display boxes, but based on the size of the phone screen, if you need to enter more text or display more content, the phone screen is far from enough, So the function of

This is our most common type of pattern, and one of the common features of this type of pattern is: Encapsulates the way and process of creating. The so-called encapsulation is hidden meaning, the object creation method and process is not visible,

Let's take a look at the effect chart first, I believe many Android beginners want to know how the effect is achieved, to the above figure: To implement the custom load style in this figure above, it is very simple, first of all we need the layout

Use root Tools to entertain commands. https://code.google.com/p/roottools/ Copy Code code as follows: /** * Answering Incoming Calls */ private void Answerringingcall () { Try { command command = new command (0, "input keyevent 5"