Android's latest ndk R8 is used to build, install, configure, and use a detailed graphic explanation in the development environment in the window. The complete configuration process record (original) has been trying to develop ndk, but it has been delaying other tasks, after referring to some online materials, I finally set up the environment and recorded the process and shared it with you. Content directory: 1. Default basic environment 2. Download a
The Android GradientDrawable advanced application will not be used by the artist at all, gradientdrawable
First, see Figure 1 for the custom Textview 2 and 3 for the click effect.
The specific implementation is as follows:
1. Define custom control attributes
2. Control Code
Package com. klower. component;
Import android
In Android, citypickerview, an open-source framework, is used to achieve three levels of association between provinces, cities, and cities,1. Overview
I remember that when I was working on a mall project, I needed to implement provincial/municipal linkages in the address selection to facilitate users to quickly enter the address. At that time, I used an open-sour
In Android, SurfaceView and Canvas are used to draw animations and androidsurfaceview
In fact, each View has a Canvas that can be used to draw an animation. You only need to reload the onDraw () method in this View, but the SurfaceView class is a class dedicated to brake animation.
Canvas is similar to the canvas label in HTML5. Canvas + SurfaceView makes animat
Android Studio is used to call. NET Webservice.
I am. NET was born, but the leaders had to make research on the Android shell and then prepare html5. When the experimental soldiers were really pitfall, but there was no way we had to study it, simply failing to live up to the expectations of the Leadership (I have been studying for two or three days), I finally fi
Examples of commonly used listview management for android
Listview, as a common control, should be familiar with listview operations. You are also familiar with listview data management. The options include "click", "double-click", "select" delete "," refresh ", and" add data. I wrote a demo for the listview management operation again. It contains some of the operations I have mentioned. Based on this demo,
Android JNI is used for driver testing and androidjni
Hardware Platform: cloud6410
Operating Systems: Ubuntu and windows
Board System: Android
Development tools: jdk, ndk, and eclipse
This test starts from the compilation of the Linux kernel module. The following uses the pwm driver of as an example.
Pwm_6410.c:
#include Add Makefile:
obj-$(CONFIG_PWM_S3C6410)
Android custom tags are used to implement flat uidesign and androiduiAugust 6, 2014 11:06:44Android uses custom tags to implement a flat uidesign:1. Custom tags in the attrs. xml fileFor example:// Reference is referenced from string. xml.// Flag is defined by yourself, similar to android: gravity = "top"// Dimension refers to the content referenced from dimensio
Recently, there was a problem that had not been solved for a long time. That is, when aidl is used for inter-process communication, my development environment cannot automatically generate java files under the gen directory.I use the Ubuntu operating system. The same source can be used in other colleagues' development environments.Check whether the SDK installation is correct. The aidl compilation tool in t
Summary of commonly used dialogs in Android
Record frequently used dialog boxes for future reference.
Layout File
Code Implementation
Package com. wzw. dialog; import android. app. activity; import
. java
Note: This layout is used as the subscriber to publish sticky events. You also need to register EventBus.
Package com. mly. panhouye. eventbustest; import android. support. v7.app. appCompatActivity; import android. OS. bundle; import android. widget. textView; import
Android listview and ListAdapter are used together. androidlistadapter
The data display control that comes with Android in ListView. To use ListView to fill data, you must use an adapter to fill the data. Here we will introduce the ListAdapter adapter, as shown below:
Java source code:
Package com. example. listview1;
Android development-Summary of commonly used sensors
With the development of mobile phones, there are more and more types of sensors supported by various mobile phones. Using sensors in development makes people feel refreshed, for example, shaking, and shake and cut songs in the mobile music player. Today, we will briefly introduce the use of sensors and some commonly u
Let's talk about the map V2 API key first:
During app packaging, You need to generate a XXX. keystore and use the sha1 generated by this secret room library to apply for the key as the key in androidmanifest. xml.
(Sometimes the key generated using Debug. keystore can also be used for unknown reasons)
Enter the subject:
According to https://developers.google.com/maps/documentation/android/reference/
When android Gallery2 onPause is used, the background page is black and gallery2onpause is displayed.Modify:Src/com/android/gallery3d/app/AbstracGalleryActivity. javaThe OnResume () function contains about 290 rows.Remove the line mGLRootView. setVisibility (View. VISIBLE ).The onPause () function contains approximatel
In Android development, you will inevitably encounter a lot of data loaded into the ListView to display,Then one of the most important data-passing bridges adapter adapters are commonly used, as the market needsFind the content in the ListView ' entry is getting more and more this requires programmers to customize the adapter,And the key is the adapter optimization problem, the adapter is not optimized ofte
4. After talking about it for so long, I finally began to talk about the solution:
In fact, the referenced class cannot be found in a third-party package. In many cases, we only need to disrupt our own code. If the code of a third-party package needs to be disrupted, don't worry about it. Hee hee, this is called "only sweep the snow in front of your own door, render others on the cream ",
We can use-Dontwarn com. XX. BBB .**-Keep class
, ignoring:apk1127/smali/com/. DS_storeW:Unknown file type, ignoring:apk1127/smali/com/zhy/. DS_storeI:Checking whether resources has changed ...I:Building Resources ...I:Building apk file ...I:Copying Unknown Files/dir ...OK, after the package is successful, you can see a new app1127_new.apk.This apk is not installed now, the result after installation:Mainly because there is no signature.So let's sign it n
Android: Commonly Used adb commands and androidadb commands1. List the current configurations:Adb devicesFor example:Localhost :~ Newuser $ adb devicesList of devices attachedBH903QDW15device41008990d29eb000device2. For a deviceAdb-s For example:Adb-s BH903QDW15 install hello.apk3. Install the appAdb install 4. File Replication4.1 pull from mobile phone to localAdb pull For example:Adb pull/sdcard/foo.txt4.
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