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A rich interface consists of many controls, so how can we make each control orderly placed on the interface instead of messy, which needs to be realized with the help of layout LinearLayout LinearLayout, also known as linear layout, is a very common layout android:orientation arrangement Arranged in vertical order <LinearLayo ...

Start with the picture above and take you back to your childhood:Effect analysisThe sub layouts are placed in circular order and the angles are bisectedSub layout rotation, support gesture sliding rotation, fast sliding, hand lifting to continue rotation, and automatic rotationSupport X-axis rotationSupport fore-and-aft scaling sub layout (the ...

/   preface    /Or the old routine, let's see the effect!Before writing this effect, you need to be familiar with the recycling mechanism of Rv, because to realize this effect, you need to customize LayoutManager()As we all know, RecyclerView is a slidable View, so its recycling / reuse entry must be in the onTouchEvent() eventT ...

PS: This article is a reprint of the article. Reading the original text will be more readable. There is a link to the original text at the end of the articleps: the source code is analyzed based on android api 27LayoutAnimation is used to animate the sub views of the layout or ViewGroup. The animation of each sub View starts at different times, ...

prefaceIn daily development, it is inevitable to publish your library to maven warehouse, which is more convenient to use.Publishing aar package to maven warehouse mainly uses the plug-ins provided by Gradle:maven plug-in (old version) was completely abandoned after Gradle 6.2 (added @ Deprecated annotation)Maven publish plug-inMaven plug-in is ...

Original link: https://juejin.im/post/5eb3e0...This time, let's talk about the event distribution mechanism in AndroidStarting from clicking the screen, a series of events will be generated from Activity to decorview to the innermost view. Each layer of view or viewgroup will first call its dispatchTouchEvent method, and then judge whether the ...

WebView usageDisable webview from processing long press eventsSet OnLongClickListener to consume long press events.web.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { return true; } });size of font changingEnumeration of font sizes. public static enum TextSize { ...

About the author: CSDN blog expert, Huawei cloud sharing expert certification Series column: Kotlin beginner Learning and communication: three people must have my teacher; Choose the good and follow it, and change the bad. catalogue function Function header Function parameters Unit function Nothing type Function name in backquotes ...

Preface Following the previous backpack problem, Greedy Algorithms, this time let's look at dynamic planning For dynamic planning, it is dynamic planning that comes into direct contact when you first look at the backpack problem Feeling is also simpler Specific requirements of the topic, see the previous one in detail, this one tells us ...

Configure Baidu map Configure Baidu map Get SHA1 Get it from the command line in Android Studio. The steps are as follows: Click Terminal in the lower left cornerEnter D:\Android\jre\bin and enter the command keytool -list -v -keystore debug.keystore Get Baidu map key (AK) Enter the official website of Baidu map, register baidu account first, a ...