ste*_*ick 36 android hide navigationbar
是否可以永久删除活动上的导航栏？我想用平板电脑上屏幕按钮上显示的按钮删除栏,而不是操作栏.在这里.
我知道不建议这样做,我没有做出这个决定,但我需要这样做.在我的布局上,还有另一个按钮可以离开活动.我的应用程序的其余部分可以拥有并确实拥有导航栏.
我找到了这段代码并对其进行了一些调整.问题是即使我隐藏导航栏,也会留下黑色空间.我想系统会计算屏幕尺寸并考虑到导航栏？
public static class Content extends ImageView implements View.OnSystemUiVisibilityChangeListener, View.OnClickListener, ActionBar.OnMenuVisibilityListener {
Activity mActivity;
TextView mTitleView;
Button mPlayButton;
SeekBar mSeekView;
boolean mAddedMenuListener;
boolean mMenusOpen;
boolean mPaused;
boolean mNavVisible;
int mLastSystemUiVis;
Runnable mNavHider = new Runnable() {
@Override public void run() {
setNavVisibility(false);
}
};
public Content(Context context, AttributeSet attrs) {
super(context, attrs);
setOnSystemUiVisibilityChangeListener(this);
setOnClickListener(this);
}
public void init(Activity activity, TextView title, Button playButton,
SeekBar seek) {
// This called by the containing activity to supply the surrounding
// state of the video player that it will interact with.
mActivity = activity;
mTitleView = title;
mPlayButton = playButton;
mSeekView = seek;
mPlayButton.setOnClickListener(this);
setPlayPaused(true);
}
@Override protected void onAttachedToWindow() {
super.onAttachedToWindow();
if (mActivity != null) {
mAddedMenuListener = true;
mActivity.getActionBar().addOnMenuVisibilityListener(this);
}
}
@Override protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
if (mAddedMenuListener) {
mActivity.getActionBar().removeOnMenuVisibilityListener(this);
}
}
@Override public void onSystemUiVisibilityChange(int visibility) {
// Detect when we go out of nav-hidden mode, to clear our state
// back to having the full UI chrome up. Only do this when
// the state is changing and nav is no longer hidden.
int diff = mLastSystemUiVis ^ visibility;
mLastSystemUiVis = visibility;
if ((diff&SYSTEM_UI_FLAG_HIDE_NAVIGATION) != 0
&& (visibility&SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0) {
setNavVisibility(true);
}
}
@Override protected void onWindowVisibilityChanged(int visibility) {
super.onWindowVisibilityChanged(visibility);
// When we become visible or invisible, play is paused.
setPlayPaused(true);
}
@Override public void onClick(View v) {
if (v == mPlayButton) {
// Clicking on the play/pause button toggles its state.
setPlayPaused(!mPaused);
} else {
// Clicking elsewhere makes the navigation visible.
setNavVisibility(true);
}
}
@Override public void onMenuVisibilityChanged(boolean isVisible) {
mMenusOpen = isVisible;
setNavVisibility(true);
}
void setPlayPaused(boolean paused) {
mPaused = paused;
mPlayButton.setText(paused ? R.string.play : R.string.pause);
setKeepScreenOn(!paused);
setNavVisibility(true);
}
void setNavVisibility(boolean visible) {
int newVis = SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| SYSTEM_UI_FLAG_LAYOUT_STABLE;
if (!visible) {
newVis |= SYSTEM_UI_FLAG_LOW_PROFILE | SYSTEM_UI_FLAG_FULLSCREEN
| SYSTEM_UI_FLAG_HIDE_NAVIGATION;
}
// If we are now visible, schedule a timer for us to go invisible.
if (visible) {
Handler h = getHandler();
if (h != null) {
h.removeCallbacks(mNavHider);
if (!mMenusOpen && !mPaused) {
// If the menus are open or play is paused, we will not auto-hide.
h.postDelayed(mNavHider, 1500);
}
}
}
// Set the new desired visibility.
setSystemUiVisibility(newVis);
mTitleView.setVisibility(visible ? VISIBLE : INVISIBLE);
mPlayButton.setVisibility(visible ? VISIBLE : INVISIBLE);
mSeekView.setVisibility(visible ? VISIBLE : INVISIBLE);
}
}
rad*_*122 64
有一个解决方案从KitKat(4.4.2)开始,称为沉浸模式:https://developer.android.com/training/system-ui/immersive.html
基本上,您应该将此代码添加到onResume()方法:
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
Muh*_*aat 25
您可以
有两种方法(都需要设备root):
1-首先,打开设备adb window command,然后运行以下命令:
adb shell >
su >
pm disable com.android.systemui >
并把它找回来只是做相同的,但改disable来enable.
2-秒方式,将以下行添加到设备的build.prop文件的末尾:
qemu.hw.mainkeys = 1
然后把它拿回来就把它移除.
如果您不知道如何编辑build.prop文件:
小智 14
你可以隐藏导航栏,只需在你的上面调用这个方法onCreate(),
public void FullScreencall() {
if(Build.VERSION.SDK_INT < 19){
View v = this.getWindow().getDecorView();
v.setSystemUiVisibility(View.GONE);
} else {
//for higher api versions.
View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
decorView.setSystemUiVisibility(uiOptions);
}
}
这将隐藏整个nagiation panel.hope它可以帮助你
在观看 DevBytes视频（由 Roman Nurik）并阅读文档中的最后一行之后，它说：
注意：如果您喜欢 IMMERSIVE_STICKY 的自动隐藏行为但也需要显示您自己的 UI 控件，只需将 IMMERSIVE 与 Handler.postDelayed() 或类似的东西结合使用，几秒钟后重新进入沉浸模式。
radu122给出的答案对我有用。只需设置一个处理程序，您就可以开始使用了。
这是对我有用的代码：
@Override
protected void onResume() {
super.onResume();
executeDelayed();
}
private void executeDelayed() {
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
// execute after 500ms
hideNavBar();
}
}, 500);
}
private void hideNavBar() {
if (Build.VERSION.SDK_INT >= 19) {
View v = getWindow().getDecorView();
v.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
}
}
谷歌说“几秒钟后” - 但我想尽快提供这个功能。也许我稍后会更改该值，如果必须的话，我会更新此答案。
更改清单中的主题。
如果要隐藏一项活动的导航栏，则可以使用以下方法：
<activity
android:name="Activity Name"
android:theme="@android:style/Theme.Black.NoTitleBar"
android:label="@string/app_name" >
如果要隐藏整个应用程序的导航栏，可以使用以下命令：
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@android:style/Theme.Black.NoTitleBar" >
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