Tag：android
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Time：2020-11-25
Recently, I was working on the project of DJI Android development. Because I didn’t touch too much Android development before, I encountered a lot of problems when I just started. It took a lot of time for sample code to run. 1. Android studio installation and dependent Library Download Originally, I thought that Google’s […]
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Time：2020-11-23
Android studio is an Android integrated development tool launched by Google, based on IntelliJ idea. Similar to eclipse ADT, Android Studio provides integrated Android development tools for development and debugging. Here’s how to use it Software name: Android studio stable version v3.5.2 Chinese installation version (with Chinese package + installation tutorial) 64 bit Software […]
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Time：2020-11-23
It can also be used in the catalog view. After a simple search, there is no suitable one. Only a basic defective tree structure is found. On the basis of this, a check box is added and part of the code is simplified. The following is a demonstration of the effect picture. The duration is […]
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Time：2020-11-21
Filter introduction At present, there are many filters on the market, but the overall classification is just a few, all of which are processed in the fragment shader. At present, the most commonly used filters are LUT filter and filter that adjusts RGB curve. Other types of changes are similar. Construction of dynamic filter In […]
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Time：2020-11-20
There are two main ways to cross develop unity and Android / IOS. Take android as an example. One is to generate jar or AAR package from Android and import it into unity3d plugin / bin / directory;Second, unity exports Android projects and continues to develop as a library in Android studio。 Online tutorial is […]
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Time：2020-11-20
In Android development, the UI controls provided by the system are limited. When we need to use some special controls, we may not be able to achieve the desired effect only by relying on the control provided by the system. At this time, we need to customize some controls to complete the desired effect. Next, […]
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Time：2020-11-19
1、 Understanding Android windows Window represents the concept of a window. It is an abstract concept. Each window corresponds to a view and a viewrootimpl. Window and view are connected through viewrootimpl. Therefore, window does not exist in reality. It exists in the form of view. Each window view in Android has a corresponding window, […]
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Time：2020-11-18
1、 Drawing process source code path 1. Activity loads viewrootimpl ActivityThread.handleResumeActivity() –> WindowManagerImpl.addView(decorView, layoutParams) –> WindowManagerGlobal.addView() 2. Viewrootimpl starts traversing the view tree ViewRootImpl.setView(decorView, layoutParams, parentView) –>ViewRootImpl.requestLayout() –>scheduleTraversals() –>TraversalRunnable.run() –>doTraversal() –>performTraversals()（performMeasure、performLayout、performDraw） 2、 View rendering process 1、measure (1) What is measurespec? After rewriting the onmeasure() method, we all know that the measurespec class is needed to […]
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Time：2020-11-17
Recently, a problem has been found in development. It seems that Vue does not support Android computers with versions below 6.0: However, due to the recent demand, we had to solve this problem. After a lot of useless queries on the Internet, we didn’t find a real feasible solution, so we used vconsole to print […]
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Time：2020-11-17
Block whether to log in or not /** *Test whether to log in */ loginButton.setOnClickListener(new OnClickLoginedListener(mContext) { /** *The abstract method of user-defined implementation is used to determine whether the current device is logged in */ @Override public boolean isLogined(Activity context, View view) { return false; } /** *It is mainly used to execute the […]
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Time：2020-11-14
In this paper, we share the specific code of Android using WebView to save and download network pictures for your reference. The specific content is as follows Recently, we found that it can be obtained in setonlongclicklistener of WebView WebView.HitTestResult According to the type of hittestresult obtained, different processing is determined. By judging the type […]
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Time：2020-11-12
The touch screen of a mobile phone was broken before, so I need to use the mobile phone to do some operation recently; Android Developer website: https://developer.android.google.cn/ Introduction to ADB debugging tools: https://developer.android.google.cn/studio/command-line/adb ADB tool introduction and tutorial; Download the ADB tool: https://developer.android.google.cn/studio/releases/platform-tools Because, we are not doing Android development; we can download Android debugging […]
