Android 动态隐藏显示导航栏，状态栏

Talk is cheap, show me the code.

--Linus Torvalds

Okay, here:

一、导航栏：

[java] view plain copy

1. private void hideNavigationBar() {
2. View decorView = getWindow().getDecorView();
3. int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
4. | View.SYSTEM_UI_FLAG_FULLSCREEN;
5. decorView.setSystemUiVisibility(uiOptions);
6. }
7. private void showNavigationBar() {
8. View decorView = getWindow().getDecorView();
9. int uiOptions = View.SYSTEM_UI_FLAG_VISIBLE;
10. decorView.setSystemUiVisibility(uiOptions);
11. }

相关：

SYSTEM_UI_FLAG_VISIBLE——显示状态栏和导航栏

SYSTEM_UI_FLAG_LOW_PROFILE——此模式下，状态栏的图标可能是暗的

SYSTEM_UI_FLAG_HIDE_NAVIGATION——隐藏导航栏

SYSTEM_UI_FLAG_FULLSCREEN——全屏，隐藏状态栏和导航栏

SYSTEM_UI_FLAG_LAYOUT_STABLE

SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION

SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN——全屏，隐藏导航栏，状态栏浮在布局上。

SYSTEM_UI_FLAG_IMMERSIVE——沉浸式：半透明的状态栏和导航栏

SYSTEM_UI_FLAG_IMMERSIVE_STICKY——粘性沉浸式

二、状态栏：

[java] view plain copy

1. private void setStatusBarVisible(boolean show) {
2. if (show) {
3. int uiFlags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
4. uiFlags |= 0x00001000;
5. getWindow().getDecorView().setSystemUiVisibility(uiFlags);
6. } else {
7. int uiFlags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
8. | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
9. | View.SYSTEM_UI_FLAG_FULLSCREEN;
10. uiFlags |= 0x00001000;
11. getWindow().getDecorView().setSystemUiVisibility(uiFlags);
12. }
13. }

三、导航栏和状态栏

[java] view plain copy

1. private void setSystemUIVisible(boolean show) {
2. if (show) {
3. int uiFlags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
4. uiFlags |= 0x00001000;
5. getWindow().getDecorView().setSystemUiVisibility(uiFlags);
6. } else {
7. int uiFlags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
8. | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
9. | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
10. | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
11. | View.SYSTEM_UI_FLAG_FULLSCREEN;
12. uiFlags |= 0x00001000;
13. getWindow().getDecorView().setSystemUiVisibility(uiFlags);
14. }
15. }