blackzhangjx / android-notes Goto Github PK
View Code? Open in Web Editor NEWAndroid开发核心知识点笔记(不断更新中🔥)
Android开发核心知识点笔记(不断更新中🔥)
AMS涉及的图片失效
这个是懒汉式吧?
public class CustomManager {
private Context mContext;
private static final Object mLock = new Object();
private static CustomManager mInstance;
public static CustomManager getInstance(Context context) {
synchronized (mLock) {
if (mInstance == null) {
mInstance = new CustomManager(context);
}
return mInstance;
}
}
private CustomManager(Context context) {
this.mContext = context.getApplicationContext();
}
}
Android知识点汇总
Scroller:
invalidate 会导致 View 重绘,
后会在 draw 方法中又会去调用 computeScroll 方法
我觉得缺少一个c语言补充,如果可以补充的话,就完美了,不过还是感谢奉献
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.