一.简介 二.代码1.xml(1)main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_paren…

1.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:pad…

1.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:pad…

文档是这样来设置样式 <ProgressBar android:layout_width="wrap_content" android:layout_height="wrap_content" style="@android:style/Widget.ProgressBar.Small" android:layout_marginRight="5dp" /> 1.xml <RelativeLayout xml…

1.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:pad…

1. <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" androi…

1.netstone_layout.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_pa…

一.介绍 二.1.linear_layout.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="mat…

一.ImageView介绍 设置scalType Must be one of the following constant values. Constant Value Description matrix 0 Scale using the image matrix when drawing. See setImageMatrix(Matrix). fitXY 1 Scale the image using FILL. fitStart 2 Scale the image using STA…

一. 1.checkbox_layout.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match…

一.dpi.dp介绍 sp会随着用户在手机中设置字体大小而改变,而dp不会 二.1.dpsp_layout.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"…

一.layout介绍 二.测试linear_layout1.activity_main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:la…

一.View.监听器介绍 二.在Activity中获取view和设置属性,设置button的监听器 1.activity_main.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent&qu…

一.activity初步 1.程序启动会先读配置文件AndroidManifest.xml找activity 2.activity会在onCreate方法中读取activity_main.xml文件,加载内容,每个activity的配置文件都会在R.java中生成id 二.代码 1.AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android=&…

一.代码 1.xml(1)radio.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent&q…

1.xml <?xml version="1.0" encoding="utf-8"?> <TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:…

1.AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="mars.activity05" android:versionCode="1" android:versionN…

一.代码 1.xml(1)activity_main.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match…

一.Intent简介 二.代码 1.activity_main.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="…

一.AppWidget介绍 1.要在手机生成AppWidget需的东西 (1)AppWidgetProviderInfo a).res\xml\example_appwidget_info.xml b)a中需要布局文件res\layout\example_appwidget.xml来定义AppWidget的样式 (2)AppWidgetProvider a)自定义一个类ExampleAppWidgetProvider继承AppWidgetProvider,根据需求重写onXXX() b)AppW…

1.main.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" androi…

一. public class CountriesActivity extends Activity { protected void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.countries); ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_dro…

一.文档用法 1.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" andr…

1.strings.xml <?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">S02_E01_SpinnerEtc</string> <string name="hello_world">Hello world!</string> <string na…

一.简介 二.代码1.xml(1)activity_main.xml <ListView android:id="@id/android:list" android:layout_width="wrap_content" android:layout_height="wrap_content" android:scrollbars="vertical" /> <!-- android:layoutAnimat…

一.流程 1.把要实现动画的一系列图片复制到res/drawable文件夹 2.在此文件新建一个xml文件用来组织图片 3.在mainactivity中用imageView.setBackgroundResource(R.drawable.anim_item)来使用这个动画 二.代码1.xml(1res\drawable-hdpi\anim_item.xml <?xml version="1.0" encoding="utf-8"?> <anima…

public class MainActivity extends Activity { private Button button = null; private ImageView imageView = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); imageView =…

一.简介 二.代码1.res\anim下的xml(1)alpha.xml.xml <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/accelerate_interpolator"&g…

一.简介 二.代码1.xml(1)activity_main.xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="…

一.简介 二.代码1.xml(1)example_appwidget.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width=&qu…