Android四大组件activity-阿里云

深入剖析Android四大组件(九)——Activity之AppCompatActivity与toolbar的结合（二） 3.AppCompatActivity详解㈠设置title我们可以看到，标题栏始终显示我们的项目名，这样显然给用户看是不理想的。那么怎么设置标题栏的字符串。我们可以在setSupportActionBar(toolbar)之前加入如下代码：setTitle("liyuanjinglylyj");此s...

深入剖析Android四大组件(九)——Activity之AppCompatActivity与toolbar的结合（一）对于技术类的博客，我们永远追寻最新API脚步，在API22之前我们使用标题栏基本都是在ActionBarActivity的Activity中处理的，而API22之后，谷歌遗弃了ActionBarActivity，推荐我们也可以说是强制我们使用AppCompatActivity。然而ActionBar...

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深入剖析Android四大组件(八)——结束Activity的4个阶段（二） 2.结束Activity的4个阶段同启动Activity一样，结束Activity也有4个阶段，下面我们将对其进行详细讲解。①第一阶段——参数初始化以及参数传递与启动Activity相同，结束Activity同样需要ActivityManagerProxy将命令转发出去的。当按下Back键时，将会执...

深入剖析Android四大组件(八)——结束Activity的4个阶段（一）上一篇博文介绍了启动Activity请求的流程以及对相关数据结构的处理，那么当我们试图结束Activity的时候，ActivityManagerService的行为将会是怎样的呢？这一节将介绍结束Activity的3种主要方法和4个阶段。1.结束Activity的3种主要方法结束Activity时，...

Android的四大组件之Activity Activity（活动）用户操作的可视化界面；为用户提供了一个完成操作指令的窗口Activity是通过一个Activity栈来进行管理，当前显示的Activity被放到栈顶当我们创建完毕Activity之后，需要调用setContentView()方法来完成界面的显示在Android App 中...

Android Day06四大组件之Activity多页面跳转和数据传递 1.什么是Activity 官方文档是这么说的：An Activity is an application component that provides a screen with which u...

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