Android的Window类

 

Window属性列举如下：

FEATURE_OPTIONS_PANEL = 0;                             选择面板

FEATURE_NO_TITLE = 1;                                          无标题栏

FEATURE_PROGRESS = 2;                                       在标题栏上显示加载进度，例如webview加载网页时（条状进度条）

FEATURE_LEFT_ICON = 3;                                        在标题栏左侧显示一个图标

FEATURE_RIGHT_ICON = 4;                                      在标题栏右侧显示一个图标

FEATURE_INDETERMINATE_PROGRESS = 5;         不确定的进度（圆圈状等待图标）

FEATURE_CONTEXT_MENU = 6;                               上下文菜单，相当于PC上的右键菜单（默认使能）

FEATURE_CUSTOM_TITLE = 7;                                  自定义标题栏，该属性不能与其他标题栏属性合用

FEATURE_ OPENGL = 8;                                             如果开启OpenGL,那么2D将由OpenGL处理(OpenGL中2D是3D的子集)

PROGRESS_VISIBILITY_ON = -1;                               进度条可见

PROGRESS_VISIBILITY_OFF = -2;                              进度条不可见

PROGESS_INDETERMINATE_ON = -3;                       开启不确定模式

PROGESS_INDETERMINATE_OFF = -4;                     关闭不确定模式

PROGESS_START = 0;                                                 第一进度条的最小值

PROGESS_END = 10000;                                             第一进度条的最大值

PROGESS_SECONDARY_START = 20000;                 第二进度条的最小值

PROGESS_SECONDARY_END = 30000;                      第二进度条的最大值

 

应用示例

1、隐藏标题栏

requestWindowFeature(Window.FEATURE_NO_TITLE)

2、在标题栏显示进度条

requestWindowFeature(Window.FEATURE_PROGESS);

setContentView(R.layout.progressbar_1);

setProgressBarVisibility(true);

3、使用自定义标题栏

requestWindowFeature(Window.FEATRUE_CUSTOM_TITLE);

setContentView(R.layout.xxx);

getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.my_title_bar)l

4、清除标题栏内容，而区域保留

((ViewGroup).getWindow().findViewById(com.android.internar.R.id.title_container)).removeAllViews();

5、隐藏标题栏

((ViewGroup).getWindow().findViewById(com.android.internal.R.id.title_container)).setVisibility(View.GONE);

6、显示标题栏

((ViewGroup).getWindow().findViewById(com.android.internal.R.id.title_container)).setVisibility(View.VISIBLE);

 

其他注意事项：

(1) requestWindowFeature()要在setContentView()之前调用；

(2) 设置各种Feature，是具有排它性的，一旦设置，后续不可更改为别的类型；

(3) 当使用TabHost(由ActivityGroup派生)时，各个Tab里的Activity,要么都是NO_TITLE,要么都是CUSTOM_TITLE,无法分别进行设置