（1）全屏相关设置
//（1）主题添加
<item name="android:windowFullscreen">true</item>
//（2）setContentView之前添加
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
//（3）任意位置添加flag
getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN) //隐藏状态栏
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN) //显示状态栏
//（4）通过setsystemUiVisibility添加
int uiOptions = View.SYSTEM_UI_LAYOUT_FLAGS
| View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
getWindow().getDecorView().setSystemUiVisibility(uiOptions);
getWindow().setStatusBarColor(Color.TRANSPARENT);//透明状态栏
getWindow().setNavigationBarColor(Color.TRANSPARENT); //透明导航栏
（2）部分属性解析
//默认显示状态栏和导航栏
View.SYSTEM_UI_FLAG_VISIBLE
//低调模式，隐藏不重要的状态栏图标，导航栏中相应的图标都变成了一个小点
View.SYSTEM_UI_FLAG_LOW_PROFILE
//稳定布局，需要配合SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION和SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN使用，同时设置布局的android:fitsSystemWindows属性
View.SYSTEM_UI_FLAG_LAYOUT_STABLE
//全屏显示，隐藏状态栏，点击屏幕区域不会出现，需要从状态栏位置下拉才会出现
View.SYSTEM_UI_FLAG_FULLSCREEN
//全屏显示，将布局内容拓展到导航栏和状态栏的后面，状态栏不会被隐藏覆盖，状态栏依然可见，Activity布局部分会被状态栏遮挡
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
//隐藏导航栏，点击屏幕任意区域，导航栏将重新出现，并且不会自动消失
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
//将布局内容拓展到导航栏的后面
View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
//配合SYSTEM_UI_FLAG_HIDE_NAVIGATION和SYSTEM_UI_FLAG_FULLSCREEN使用，使状态栏和导航栏真正的进入沉浸模式。
//点击屏幕任意区域，不会退出全屏模式，只有用户上下拉状态栏或者导航栏时才会退出------这个属性会导致拉出后状态栏和导航栏不会被自动隐藏
View.SYSTEM_UI_FLAG_IMMERSIVE
//效果跟View.SYSTEM_UI_FLAG_IMMERSIVE一样。但是，它在全屏模式下，用户上下拉状态栏或者导航栏时，这些系统栏只是以半透明的状态显示出来，并且在一定时间后会自动消失
View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
（3）不允许上下拉出现状态栏和导航栏需求
View.SYSTEM_UI_FLAG_FULLSCREEN
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
通过以上属性来隐藏状态栏和导航栏，发现上下拉还是会出现状态栏和导航栏，现在的需求是不要出现状态栏和导航栏。
可通过如下方式拦截：
//frameworks/base/services/core/java/com/android/server/wm/SystemGesturesPointerEventListener.java
interface Callbacks {
void onSwipeFromTop();
void onSwipeFromBottom();
void onSwipeFromRight();
void onSwipeFromLeft();
void onFling(int durationMs);
void onDown();
void onUpOrCancel();
void onMouseHoverAtTop();
void onMouseHoverAtBottom();
void onMouseLeaveFromEdge();
void onDebug();
}
private final Callbacks mCallbacks;
SystemGesturesPointerEventListener(Context context, Handler handler, Callbacks callbacks) {
mContext = checkNull("context", context);
mHandler = handler;
mCallbacks = checkNull("callbacks", callbacks);
onConfigurationChanged();
}
public void onPointerEvent(MotionEvent event) {
if (mGestureDetector != null && event.isTouchEvent()) {
mGestureDetector.onTouchEvent(event);
}
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
mSwipeFireable = true;
mDebugFireable = true;
mDownPointers = 0;
captureDown(event, 0);
if (mMouseHoveringAtEdge) {
mMouseHoveringAtEdge = false;
mCallbacks.onMouseLeaveFromEdge();
}
mCallbacks.onDown();
break;
case MotionEvent.ACTION_POINTER_DOWN:
captureDown(event, event.getActionIndex());
if (mDebugFireable) {
mDebugFireable = event.getPointerCount() < 5;
if (!mDebugFireable) {
if (DEBUG) Slog.d(TAG, "Firing debug");
mCallbacks.onDebug();
}
}
break;
case MotionEvent.ACTION_MOVE:
if (mSwipeFireable) {
final int swipe = detectSwipe(event);
mSwipeFireable = swipe == SWIPE_NONE;
if (swipe == SWIPE_FROM_TOP) {
if (DEBUG) Slog.d(TAG, "Firing onSwipeFromTop");
mCallbacks.onSwipeFromTop();
} else if (swipe == SWIPE_FROM_BOTTOM) {
if (DEBUG) Slog.d(TAG, "Firing onSwipeFromBottom");
mCallbacks.onSwipeFromBottom();
} else if (swipe == SWIPE_FROM_RIGHT) {
if (DEBUG) Slog.d(TAG, "Firing onSwipeFromRight");
mCallbacks.onSwipeFromRight();
} else if (swipe == SWIPE_FROM_LEFT) {
if (DEBUG) Slog.d(TAG, "Firing onSwipeFromLeft");
mCallbacks.onSwipeFromLeft();
}
}
break;
case MotionEvent.ACTION_HOVER_MOVE:
if (event.isFromSource(InputDevice.SOURCE_MOUSE)) {
if (!mMouseHoveringAtEdge && event.getY() == 0) {
mCallbacks.onMouseHoverAtTop();
mMouseHoveringAtEdge = true;
} else if (!mMouseHoveringAtEdge && event.getY() >= screenHeight - 1) {
mCallbacks.onMouseHoverAtBottom();
mMouseHoveringAtEdge = true;
} else if (mMouseHoveringAtEdge
&& (event.getY() > 0 && event.getY() < screenHeight - 1)) {
mCallbacks.onMouseLeaveFromEdge();
mMouseHoveringAtEdge = false;
}
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
mSwipeFireable = false;
mDebugFireable = false;
mCallbacks.onUpOrCancel();
break;
default:
if (DEBUG) Slog.d(TAG, "Ignoring " + event);
}
}
可从如上回调函数位置屏蔽相关滑动事件，从而实现不在出现状态栏和导航栏
//frameworks/base/services/core/java/com/android/server/wm/DisplayPolicy.java
private final SystemGesturesPointerEventListener mSystemGestures;
mSystemGestures = new SystemGesturesPointerEventListener(mUiContext, mHandler,
new SystemGesturesPointerEventListener.Callbacks() {
//从上往下滑触发
@Override
public void onSwipeFromTop() {
//通过包名等判断条件，屏蔽上下滑动事件，从而不出现导航栏和状态栏
if(tempStatus()){
Slog.i(TAG, "onSwipeFromTop not Status Bar");
return;
}
}
//从下往上滑触发
@Override
public void onSwipeFromBottom() {
//通过包名等判断条件，屏蔽上下滑动事件，从而不出现导航栏和状态栏
if(tempStatus()){
Slog.i(TAG, "onSwipeFromBottom not Navigation Bar");
return;
}
}
//从右往左滑触发
@Override
public void onSwipeFromRight() {
}
//从左往右滑触发
@Override
public void onSwipeFromLeft() {
}
@Override
public void onFling(int duration) {
}
@Override
public void onDebug() {
}
@Override
public void onDown() {
}
@Override
public void onUpOrCancel() {
}
@Override
public void onMouseHoverAtTop() {
}
@Override
public void onMouseHoverAtBottom() {
}
@Override
public void onMouseLeaveFromEdge() {
}
});
private boolean tempStatus(){
int tempEnable = Settings.Global.getInt(mContext.getContentResolver(), "temp_value", 0);
ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningTaskInfo> runningTasks = am.getRunningTasks(1);
String topActivityPackage = "";
if (runningTasks != null && !runningTasks.isEmpty()) {
ActivityManager.RunningTaskInfo taskInfo = runningTasks.get(0);
topActivityPackage = taskInfo.topActivity.getPackageName();
}
Slog.i(TAG, "dxf_tempStatus tempEnable = "
+ tempEnable + ", topActivityPackage = " + topActivityPackage);
return tempEnable == 1 && "com.xxxx.xxxx".equals(topActivityPackage);
}