requestWindowFeature()的应用 (转)
2011-08-19 13:58
381 查看
我们在开发程序是经常会需要软件全屏显示、自定义标题(使用按钮等控件)和其他的需求,今天这一讲就是如何控制Android应用程序的窗体显示.
首先介绍一个重要方法那就是requestWindowFeature(featrueId),它的功能是启用窗体的扩展特性。参数是Window类中定义的常量。
2.FEATURE_CONTEXT_MENU:启用ContextMenu,默认该项已启用,一般无需指定
3.FEATURE_CUSTOM_TITLE:自定义标题。当需要自定义标题时必须指定。如:标题是一个按钮时
4.FEATURE_INDETERMINATE_PROGRESS:不确定的进度
5.FEATURE_LEFT_ICON:标题栏左侧的图标
6.FEATURE_NO_TITLE:吴标题
7.FEATURE_OPTIONS_PANEL:启用“选项面板”功能,默认已启用。
8.FEATURE_PROGRESS:进度指示器功能
9.FEATURE_RIGHT_ICON:标题栏右侧的图标
图1默认
1.FEATURE_CUSTOM_TITLE详解
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
图2 无标题
这是因为没设置Featrue
在上面代码后加:
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
图3自定义标题
自定义标题完成,它是一个xml文件布局
title.xml
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
3.FEATURE_INDETERMINATE_PROGRESS详解
表示一个进程正在运行
图4标题进度条显示
实现代码
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
2.Java代码
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
3.FEATURE_LEFT_ICON详解
左侧显示图标
图5
实现代码
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
4.FEATURE_NO_TITLE详解
可用于全屏显示
实现代码
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
图6全屏显示
完毕。
首先介绍一个重要方法那就是requestWindowFeature(featrueId),它的功能是启用窗体的扩展特性。参数是Window类中定义的常量。
一、枚举常量
1.DEFAULT_FEATURES:系统默认状态,一般不需要指定2.FEATURE_CONTEXT_MENU:启用ContextMenu,默认该项已启用,一般无需指定
3.FEATURE_CUSTOM_TITLE:自定义标题。当需要自定义标题时必须指定。如:标题是一个按钮时
4.FEATURE_INDETERMINATE_PROGRESS:不确定的进度
5.FEATURE_LEFT_ICON:标题栏左侧的图标
6.FEATURE_NO_TITLE:吴标题
7.FEATURE_OPTIONS_PANEL:启用“选项面板”功能,默认已启用。
8.FEATURE_PROGRESS:进度指示器功能
9.FEATURE_RIGHT_ICON:标题栏右侧的图标
二、详解
默认显示状态图1默认
1.FEATURE_CUSTOM_TITLE详解
this.requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); this.setContentView(R.layout.main);
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
图2 无标题
这是因为没设置Featrue
在上面代码后加:
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title);
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
图3自定义标题
自定义标题完成,它是一个xml文件布局
title.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" > <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/icon"/> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:text="文本" /> </LinearLayout>
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
3.FEATURE_INDETERMINATE_PROGRESS详解
表示一个进程正在运行
图4标题进度条显示
实现代码
1.progress.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content"> <ProgressBar android:id="@+id/progress" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" style="?android:attr/progressBarStyleSmallTitle"> </ProgressBar> </LinearLayout>
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
2.Java代码
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); setContentView(R.layout.main); getWindow().setFeatureInt(Window.FEATURE_INDETERMINATE_PROGRESS, R.layout.progress); setProgressBarIndeterminateVisibility(true);
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
3.FEATURE_LEFT_ICON详解
左侧显示图标
图5
实现代码
this.requestWindowFeature(Window.FEATURE_LEFT_ICON); setContentView(R.layout.main); getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON, R.drawable.icon);
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
4.FEATURE_NO_TITLE详解
可用于全屏显示
实现代码
this.requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.main); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New" , courier, monospace; /*white-space: pre;*/
}
.csharpcode
{
border: 1px solid #cccccc;
background-color: #f5f5f5;
padding-left: 10px;
}
.csharpcode pre
{
margin: 0em;
}
.csharpcode .rem
{
color: #008000;
}
.csharpcode .kwrd
{
color: #0000ff;
}
.csharpcode .str
{
color: #006080;
}
.csharpcode .op
{
color: #0000c0;
}
.csharpcode .preproc
{
color: #cc6633;
}
.csharpcode .asp
{
background-color: #ffff00;
}
.csharpcode .html
{
color: #800000;
}
.csharpcode .attr
{
color: #ff0000;
}
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum
{
color: #606060;
}
图6全屏显示
完毕。
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