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[TOC]#0x00 Preface# #不知所以然, take a lookAndroid Reverse-android base reverse (1)Android Reverse-android base reverse (2)# #以及java系列:Android Reverse-java Code Basics (1)Android Reverse-java Code Basics (

1 process.killprocess and System.exit (0) Two will kill the current process.You can open DDMM to see the process number, and the process is actually killed.2 If the first Activity call process.killprocess or System.exit (0) will kill the current process.But if it is not called in the first Activity, such as Activitya startup Activityb, you call in ActivitybProces

In the Android development process, often need to dynamically change the size of the view, some of the size of the view may need to be set according to other view size, or you need to get some view size to do something, but it is possible that you need to get this value in OnCreate, But some Android-based developers are aware that Android does not know the size o

parameters; //Use the value of the parameter taken from the specified shaderGles20.glenablevertexattribarray (Mapostionhandle);//Start drawingGles20.gldrawarrays (Gles20.gl_triangles,0,3); }}Step Three: Permission declarationsAfter the above two steps, the program can not run, you have to declare the appropriate permissions in the Androidmanifest.xml. uses-feature android:glEsVersion="0x00020000" android:required="true" />You can see the triangle by running the prog

statementChar grade = ' B ';Switch (grade){Case ' A ':System.out.println ("excellent!");BreakCase ' B ':Case ' C ':System.out.println ("Well-done");BreakCase ' D ':SYSTEM.OUT.PRINTLN ("You passed");Case ' F ':System.out.println ("Better try Again");BreakDefault:System.out.println ("Invalid grade");}System.out.println ("Your grade is" + grade); } //Method Learning public static void Method () { int a=1; int b=2; int Maxvalue=max (A, b);

System: WIN8.1-32 bitSoftware: Adt-bundle 23.0The problem I encountered was that every time I started, I couldn't load it, whether it was rebooting the system or something else.Two workarounds are found:1. remove the. metadata\.plugins\org.eclipse.core.resources\.projects folder under workspace and restart Eclipse. 2. Delete all content from the C:\Users\ user name \.android folder and restart Eclipse. The

In the development of Android, it should be said that most people have encountered this problem.The exact reason is unclear, and the introduction of too many projects in workspace may be one of the reasons.There are a lot of solutions to this problem on the web, and for myself, the following two methods really play a role:1. Delete the. Metadata folder in the current workspace directoryThe success rate of this method should be very high, but the cost

application inherits some of the other classes, and you do not want to change it, then rewrite Attachbasecontext () as below. Public class MyApplication extends Fooapplication { @Override protectedvoidbase ) { super.attachbasecontext (base); Multidex.install (this); } }4. The compilation process may be low on memory. To fix it, set the followingdexoptions { true "4g"} 5, re-build, generate signature apk, install and use normal.(PS: I was using 1,

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.This is a lightweight library, configure a few lines of code, you can implement on Android to achieve the process of permanent, that is, under the system strong kill, as well as 360 get root, clean master can not kill process under root permissionSupport System 2.3 to 6.0Support for most devices, including Samsung, Huawei, Oppo,nexus, Meizu, etc.

context and therefore will not be displayed.Scissortest: The crop test determines whether a slice of a position (Xw, Yw) is in the clipping rectangle, and if not, is discarded.stencil test/depth Tests: Template and depth test, pass in the template and depth value of the slice, decide whether to discard the slice element.Blending: Fragmentshader The newly generated slice color value and the color value of the slice stored in a location in Framebuffer (Xw, Yw).dithering: For systems with less ava

Turn on call setup Video call "Wait";Step 1: The test machine and the matching machine A in the video call process;Step 2: Match machine B to test machine outbound video call;Step 3: Test machine to answer the video call with the machine B;Phenomenon: Video calls after a few seconds of their own initiative to break offLocate the file Alps/packages/apps/phone/src/com/mediatek/phone/vt/vtincallscreen.java,Find function Internalanswervtcallpre (),For exa

Turn on call setup Video call "Wait";Step 1: The test machine and the match machine A are in the video call process;Step 2: Match machine B to the test machine outbound video calls;Step 3: Test the machine to answer the video call of the match machine B;Phenomenon: Video calls are automatically broken after a few secondsLocate the file Alps/packages/apps/phone/src/com/mediatek/phone/vt/vtincallscreen.java,Find function Internalanswervtcallpre (),The f

Scene:1. As a bridge between PC-side and mobile-phone communication, ADB plays an important role in debugging mobile app and viewing mobile phone information.2. Some of the more useful commands are listed here to facilitate quick check.To view a list of devices on which USB debugging is turned on: ADB devices install APK: adb-s xxxxx (device serial number, using ADB devices, assuming that only one device is connected, do not need to join the-s para

Viewtreeobserver observer = Tv.getviewtreeobserver (); Textabstract for TextView control Observer.addongloballayoutlistener (new Ongloballayoutlistener () { @Override Public void Ongloballayout () { Viewtreeobserver obs = Tv.getviewtreeobserver (); Obs.removeglobalonlayoutlistener (this); if (Tv.getlinecount () >= 2) {

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

= null) return; for (File f: files) f. delete ();} public void deleteIncompleteCache (String url) {File file = getFromFileCache (url); if (file! = Null file. exists () {file. delete () ;}/// extract the file name from the image url. private String getImageNameFromUrl (String url) {Uri uri Uri = Uri. parse (url); String imageName = uri. getLastPathSegment (); return imageName;} // stream operation private void copyStream (InputStream inputStream, OutputStream outputStream) {final int buffer_siz

bitmap Gravity: If the bitmap is smaller than the container, you can set the relative position of the bitmap in the container Tilemode: Specifies that the picture tile fills the container's mode, setting this, the Gravity property is ignored and has the following optional values:Disabled (Whole pattern damper),clamp(original size),Repeat (tiled),mirror(mirrored tile) Corresponds to: ①xml definition bitmapdrawable: bitmap xmlns:android="http://schemas.android.com/ap

Path to Android Development 7-UI component 2 Today, we continue to learn about the UI components, mainly including TextView and EditText. TextView component introduction: Subclass: Button, CheckdTextView, Cheronometer, DigitalClock, EditText Indirect subclass: AutoCompleteTextView, CheckBox, CommpoundButton, MultiAutoCompleteTextView In its xml file, there are many attributes mentioned today, for example:

Android note 34. Integrated Service instance 2, android. serviceIntegrated instance 2: client access to remote ServiceImplementation: Use a button to obtain the status of the remote Service and display it in two text boxes. Idea: Assume that application A needs to communicate with application B and call the getName ()