<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[a879041764的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/a879041764</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; a879041764]]></copyright><item><title><![CDATA[android 布局相关基本内容]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/121060826</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/121060826</guid><author>a879041764</author><pubDate>Fri, 05 Nov 2021 17:01:20 +0800</pubDate><description><![CDATA[linearLayout




]]></description><category></category></item><item><title><![CDATA[android popupwindow基本属性]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/121060720</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/121060720</guid><author>a879041764</author><pubDate>Sun, 31 Oct 2021 10:22:33 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[android AlertDialog的基本属性以及创建方法]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/121057480</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/121057480</guid><author>a879041764</author><pubDate>Sat, 30 Oct 2021 22:10:30 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[android toolbar基本属性（更改标题）]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120712998</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120712998</guid><author>a879041764</author><pubDate>Mon, 11 Oct 2021 22:50:08 +0800</pubDate><description><![CDATA[需要在res文件下，values中的themes.xml文件，将style中的parent改为NoactionBar

navigation通常用于返回箭头





选择androidx，可以在其中写入textview
]]></description><category></category></item><item><title><![CDATA[android notification （通知的实现）]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120689250</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120689250</guid><author>a879041764</author><pubDate>Sun, 10 Oct 2021 18:06:42 +0800</pubDate><description><![CDATA[private NotificationManager manager;
private Notification notification;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    manager = (Notification...]]></description><category></category></item><item><title><![CDATA[android progressbar基本属性（进度条）]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120689167</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120689167</guid><author>a879041764</author><pubDate>Sun, 10 Oct 2021 17:32:55 +0800</pubDate><description><![CDATA[水平进度条可设置进度条最大值，通过button按钮点击来达到模拟的效果




]]></description><category></category></item><item><title><![CDATA[android imageview基本属性]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120688973</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120688973</guid><author>a879041764</author><pubDate>Sun, 10 Oct 2021 17:14:49 +0800</pubDate><description><![CDATA[2缩放类型为重点




]]></description><category></category></item><item><title><![CDATA[android Edit_text控件基本属性]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120688955</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120688955</guid><author>a879041764</author><pubDate>Sun, 10 Oct 2021 17:14:06 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[android botton控件基本属性]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120642276</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120642276</guid><author>a879041764</author><pubDate>Thu, 07 Oct 2021 21:47:46 +0800</pubDate><description><![CDATA[基本属性



3个事件






]]></description><category></category></item><item><title><![CDATA[Android Textview控件基础属性]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120641545</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120641545</guid><author>a879041764</author><pubDate>Thu, 07 Oct 2021 21:39:01 +0800</pubDate><description><![CDATA[一、基础属性

1、layout_width：控件的宽度

2、layout_height:控件的高度

3、id:为TextVIew设置一个组件id

4、textcolor：设置文字颜色

5、textstyle：设置文字风格（normal（无效果），bold（加粗），italic（斜体））

6、textsize：字体大小，单位一般采用sp

7、text：设置显示的文本内容

8、background：控件的背景颜色，填充整个控件的颜色，可以是图片

9、gravity：设置控件中内容的对齐方向，t]]></description><category></category></item><item><title><![CDATA[Android对控件进行隐藏]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120577780</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120577780</guid><author>a879041764</author><pubDate>Fri, 01 Oct 2021 14:48:08 +0800</pubDate><description><![CDATA[在安卓开发中，我们会遇到这样的情况，布局很类似，A布局比B布局多了几个控件，只需

将其隐藏即可达到布局复用。

基本概念

   1、在xml文件中对控件可进行配置

   2、在Java代码中进行设置

  可见：

       android:visibility="visible";

       Java代码：view.setVisibility(View.VISIBLE);

   不可见：

        ...]]></description><category></category></item><item><title><![CDATA[Android activity之间的跳转]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120577111</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120577111</guid><author>a879041764</author><pubDate>Fri, 01 Oct 2021 13:08:52 +0800</pubDate><description><![CDATA[1 直接跳转
这里有两个Activity:FirstActivity与SecondActivity,从FirstActivity中跳转到SecondActivity中只需要一个startActivity()即可:

startActivity(new Intent(this,SecondActivity.class));




//以后学了再来补充
]]></description><category></category></item><item><title><![CDATA[Android 如何设置activity为默认activity]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120570215</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120570215</guid><author>a879041764</author><pubDate>Thu, 30 Sep 2021 17:30:48 +0800</pubDate><description><![CDATA[首先，在AndroidManifest.xml文件中进行设置



默认的初始activity为



其中


&lt;intent-filter&gt;
    &lt;action android:name="android.intent.action.MAIN"/&gt;

    &lt;category android:name="android.intent.category.LAUNCHER"/&gt;
&lt;/intent-filter&gt;

这两句话就是设置activity为初始.]]></description><category></category></item><item><title><![CDATA[loginButton.setOnClickListener(this)]]></title><link>https://blog.youkuaiyun.com/a879041764/article/details/120519059</link><guid>https://blog.youkuaiyun.com/a879041764/article/details/120519059</guid><author>a879041764</author><pubDate>Mon, 27 Sep 2021 22:38:01 +0800</pubDate><description><![CDATA[loginButton.setOnClickListener(this);这里的this是什么意思？

我有点不理解为什么这里用一个this就调用了onClick这个方法呢？



一般来说，android中的接口回调有3中。

1、 主程序回调

默认的这种this，结果就是 在 Activity 后面 跟了个 implements OnClickListener，然后根据提示，会自动在下面出现一个新的方法 onclick（），是单独的一个方法。根据swich来确定不同的按钮对应的事件

2、内部类格式.]]></description><category></category></item></channel></rss>