时节如流，2019年快要结束了，立个flag，2020.1.1发布2019年个人总结，今天先来一篇技术干货。
项目需求要求动态显示/隐藏底部导航栏，默认显示3s后消失。设备默认是横屏显示。
思路：
PhoneWindowManager.java里面检测手势操作–>调用IStatusBarService.aidl里面的
接口方法–>StatusBarManagerService.java实现了IStatusBarService.aidl并且持有IStatusBar.aidl的实例对象–>CommandQueue.java实现了IStatusBar.aidl–>BaseStatusBar.java实现了CommandQueue.Callbacks–>PhoneStatusBar.java继承了BaseStatusBar.java
破解方法：
新增show hide方法，通过层层调用，最终操作到PhoneStatusBar.java里面来控制显示和隐藏导航栏，注意在SystemGesturesPointerEventListener.java里面新增onSwipeFromLeft()向右滑的接口用来手动隐藏导航栏。
主要修改文件：
modified: frameworks/base/core/java/com/android/internal/statusbar/IStatusBar.aidl
modified: frameworks/base/core/java/com/android/internal/statusbar/IStatusBarService.aidl
modified: frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
modified: frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
modified: frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
modified: frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
modified: frameworks/base/policy/src/com/android/internal/policy/impl/SystemGesturesPointerEventListener.java
modified: frameworks/base/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
全部改动如下：
git diff frameworks
diff --git a/frameworks/base/core/java/com/android/internal/statusbar/IStatusBar.aidl b/frameworks/base/core/java/com/android/internal/statusbar/IStatusBar.aidl
index a3c0db4f34..18040da902 100644
--- a/frameworks/base/core/java/com/android/internal/statusbar/IStatusBar.aidl
+++ b/frameworks/base/core/java/com/android/internal/statusbar/IStatusBar.aidl
@@ -43,5 +43,7 @@ oneway interface IStatusBar
void preloadRecentApps();
void cancelPreloadRecentApps();
void showScreenPinningRequest();
+ void showNavigationBar();
+ void hideNavigationBar();
}
diff --git a/frameworks/base/core/java/com/android/internal/statusbar/IStatusBarService.aidl b/frameworks/base/core/java/com/android/internal/statusbar/IStatusBarService.aidl
index 40c009f3a4..2a2dd5616b 100644
--- a/frameworks/base/core/java/com/android/internal/statusbar/IStatusBarService.aidl
+++ b/frameworks/base/core/java/com/android/internal/statusbar/IStatusBarService.aidl
@@ -61,4 +61,6 @@ interface IStatusBarService
void toggleRecentApps();
void preloadRecentApps();
void cancelPreloadRecentApps();
+ void showNavigationBar();
+ void hideNavigationBar();
}
diff --git a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
index 0b1b883810..61f1483f79 100644
--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
@@ -57,6 +57,8 @@ public class CommandQueue extends IStatusBar.Stub {
private static final int MSG_NOTIFICATION_LIGHT_OFF = 16 << MSG_SHIFT;
private static final int MSG_NOTIFICATION_LIGHT_PULSE = 17 << MSG_SHIFT;
private static final int MSG_SHOW_SCREEN_PIN_REQUEST = 18 << MSG_SHIFT;
+ private static final int MSG_SHOW_NAVIGATIONBAR = 19 << MSG_SHIFT;
+ private static final int MSG_HIDE_NAVIGATIONBAR = 20 << MSG_SHIFT;
public static final int FLAG_EXCLUDE_NONE = 0;
public static final int FLAG_EXCLUDE_SEARCH_PANEL = 1 << 0;
@@ -84,6 +86,8 @@ public class CommandQueue extends IStatusBar.Stub {
public void animateCollapsePanels(int flags);
public void animateExpandSettingsPanel();
public void setSystemUiVisibility(int vis, int mask);
+ public void showNavigationBar();
+ public void hideNavigationBar();
public void topAppWindowChanged(boolean visible);
public void setImeWindowStatus(IBinder token, int vis, int backDisposition,
boolean showImeSwitcher);
@@ -150,6 +154,20 @@ public class CommandQueue extends IStatusBar.Stub {
}
}
+ public void showNavigationBar() {
+ synchronized (mList) {
+ mHandler.removeMessages(MSG_SHOW_NAVIGATIONBAR);
+ mHandler.sendEmptyMessage(MSG_SHOW_NAVIGATIONBAR);
+ }
+ }
+
+ public void hideNavigationBar() {
+ synchronized (mList) {
+ mHandler.removeMessages(MSG_HIDE_NAVIGATIONBAR);
+ mHandler.sendEmptyMessage(MSG_HIDE_NAVIGATIONBAR);
+ }
+ }
+
public void setSystemUiVisibility(int vis, int mask) {
synchronized (mList) {
mHandler.removeMessages(MSG_SET_SYSTEMUI_VISIBILITY);
@@ -328,6 +346,12 @@ public class CommandQueue extends IStatusBar.Stub {
case MSG_SHOW_SCREEN_PIN_REQUEST:
mCallbacks.showScreenPinningRequest();
break;
+ case MSG_SHOW_NAVIGATIONBAR:
+ mCallbacks.showNavigationBar();
+ break;
+ case MSG_HIDE_NAVIGATIONBAR:
+ mCallbacks.hideNavigationBar();
+ break;
}
}
}
diff --git a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index d716b90ee4..ad450c181f 100644
--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -619,6 +619,11 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
addNavigationBar();
+ if (IS_ENABLE_AUTO_HIDE) {
+ mHideHandler.removeMessages(MSG_HIDE_NAVIGATIONBAR);
+ mHideHandler.sendEmptyMessageDelayed(MSG_HIDE_NAVIGATIONBAR, 3000);
+ }
+
// Lastly, call to the icon policy to install/update all the icons.
mIconPolicy = new PhoneStatusBarPolicy(mContext, mCastController);
mSettingsObserver.onChange(false); // set up
@@ -1291,6 +1296,87 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
}
}
+ //动态隐藏/显示导航栏，默认显示3s后消失
+ @Override
+ public void hideNavigationBar() {
+ if (!IS_ENABLE_AUTO_HIDE) {
+ return;
+ }
+
+ if (mNavigationBarView != null) {
+ mWindowManager.removeView(mNavigationBarView);
+ mNavigationBarView = null;
+ }
+ }
+
+ @Override
+ public void showNavigationBar() {
+ if (!IS_ENABLE_AUTO_HIDE || mNavigationBarView != null) {
+ return;
+ }
+ forceAddNavigationBar();
+ }
+
+ private void forceAddNavigationBar() {
+ mNavigationBarView = (NavigationBarView) View.inflate(mContext, R.layout.navigation_bar, null);
+ mNavigationBarView.setDisabledFlags(mDisabled);
+ mNavigationBarView.setBar(this);
+ addNavigationBar(true);
+ }
+
+ private void addNavigationBar(boolean forceReset) {
+ if (mNavigationBarView == null) {
+ return;
+ }
+
+ prepareNavigationBarView(forceReset);
+ mWindowManager.addView(mNavigationBarView, getNavigationBarLayoutParams());
+ }
+
+ private void prepareNavigationBarView(boolean forceReset) {
+ mNavigationBarView.reorient();
+ mNavigationBarView.getRecentsButton().setOnClickListener(mRecentsClickListener);
+ mNavigationBarView.getRecentsButton().setOnTouchListener(mRecentsPreloadOnTouchListener);
+ mNavigationBarView.getRecentsButton().setLongClickable(true);
+ mNavigationBarView.getRecentsButton().setOnLongClickListener(mLongPressBackRecentsListener);
+ mNavigationBarView.getBackButton().setLongClickable(true);
+ mNavigationBarView.getBackButton().setOnLongClickListener(mLongPressBackRecentsListener);
+ mNavigationBarView.getHomeButton().setOnTouchListener(mHomeActionListener);
+
+ if (forceReset) {
+ mNavigationBarMode = 0;
+ int newVal = mSystemUiVisibility;
+ mSystemUiVisibility = View.SYSTEM_UI_FLAG_VISIBLE;
+ setSystemUiVisibility(newVal, /*SYSTEM_UI_VISIBILITY_MASK*/0xffffffff);
+ int hints = mNavigationIconHints;
+ mNavigationIconHints = 0;
+ setNavigationIconHints(hints);
+ }
+
+ updateSearchPanel();
+
+ mHideHandler.removeMessages(MSG_HIDE_NAVIGATIONBAR);
+ mHideHandler.sendEmptyMessageDelayed(MSG_HIDE_NAVIGATIONBAR, 3000);
+ }
+
+ private static final int MSG_HIDE_NAVIGATIONBAR = 0;
+ private static final boolean IS_ENABLE_AUTO_HIDE = true;
+ private HideHandler mHideHandler = new HideHandler();
+ private final class HideHandler extends Handler {
+
+ @Override
+ public void handleMessage(Message msg) {
+ switch (msg.what) {
+ case MSG_HIDE_NAVIGATIONBAR:
+ hideNavigationBar();
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ //动态隐藏/显示导航栏，默认显示3s后消失
+
private void prepareNavigationBarView() {
mNavigationBarView.reorient();
diff --git a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
index 08732e5be4..19f40c1a89 100644
--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
@@ -182,4 +182,12 @@ public class TvStatusBar extends BaseStatusBar {
@Override
public void showScreenPinningRequest() {
}
+
+ @Override
+ public void showNavigationBar() {
+ }
+
+ @Override
+ public void hideNavigationBar() {
+ }
}
diff --git a/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java b/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
index cf2e543c15..e0f1267871 100644
--- a/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -1514,6 +1514,14 @@ public class PhoneWindowManager implements WindowManagerPolicy {
public void onSwipeFromRight() {
if (mNavigationBar != null && !mNavigationBarOnBottom) {
requestTransientBars(mNavigationBar);
+ } else {
+ showNavigationBar(true);
+ }
+ }
+ @Override
+ public void onSwipeFromLeft() {
+ if (mNavigationBar != null) {
+ showNavigationBar(false);
}
}
@Override
@@ -1562,6 +1570,26 @@ public class PhoneWindowManager implements WindowManagerPolicy {
}
+ private void showNavigationBar(final boolean isShowNavigationBar) {
+ mHandler.post(new Runnable() {
+ @Override
+ public void run() {
+ try {
+ IStatusBarService statusbar = getStatusBarService();
+ if (statusbar != null) {
+ if (isShowNavigationBar) {
+ statusbar.showNavigationBar();
+ } else {
+ statusbar.hideNavigationBar();
+ }
+ }
+ } catch (RemoteException e) {
+ mStatusBarService = null;
+ }
+ }
+ });
+ }
+
private void updateKeyAssignments() {
final boolean hasMenu = (mDeviceHardwareKeys & KEY_MASK_MENU) != 0;
final boolean hasHome = (mDeviceHardwareKeys & KEY_MASK_HOME) != 0;
diff --git a/frameworks/base/policy/src/com/android/internal/policy/impl/SystemGesturesPointerEventListener.java b/frameworks/base/policy/src/com/android/internal/policy/impl/SystemGesturesPointerEventListener.java
index 4ff9315707..82eff598dc 100644
--- a/frameworks/base/policy/src/com/android/internal/policy/impl/SystemGesturesPointerEventListener.java
+++ b/frameworks/base/policy/src/com/android/internal/policy/impl/SystemGesturesPointerEventListener.java
@@ -36,6 +36,7 @@ public class SystemGesturesPointerEventListener implements PointerEventListener
private static final int SWIPE_FROM_TOP = 1;
private static final int SWIPE_FROM_BOTTOM = 2;
private static final int SWIPE_FROM_RIGHT = 3;
+ private static final int SWIPE_FROM_LEFT = 4;
private final int mSwipeStartThreshold;
private final int mSwipeDistanceThreshold;
@@ -99,6 +100,9 @@ public class SystemGesturesPointerEventListener implements PointerEventListener
} 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;
@@ -185,6 +189,10 @@ public class SystemGesturesPointerEventListener implements PointerEventListener
&& elapsed < SWIPE_TIMEOUT_MS) {
return SWIPE_FROM_RIGHT;
}
+ if (fromX >= 1100 && x < screenWidth && x > fromX + mSwipeDistanceThreshold
+ && elapsed < SWIPE_TIMEOUT_MS) {
+ return SWIPE_FROM_LEFT;
+ }
return SWIPE_NONE;
}
@@ -192,6 +200,7 @@ public class SystemGesturesPointerEventListener implements PointerEventListener
void onSwipeFromTop();
void onSwipeFromBottom();
void onSwipeFromRight();
+ void onSwipeFromLeft();
void onDebug();
}
}
diff --git a/frameworks/base/services/core/java/com/android/server/statusbar/StatusBarManagerService.java b/frameworks/base/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
index cf2ed07425..f8d17c109b 100644
--- a/frameworks/base/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
+++ b/frameworks/base/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
@@ -378,6 +378,40 @@ public class StatusBarManagerService extends IStatusBarService.Stub {
}
}
+ @Override
+ public void showNavigationBar() {
+ enforceStatusBar();
+ synchronized(mLock) {
+ mHandler.post(new Runnable() {
+ public void run() {
+ if (mBar != null) {
+ try {
+ mBar.showNavigationBar();
+ } catch (RemoteException ex) {
+ }
+ }
+ }
+ });
+ }
+ }
+
+ @Override
+ public void hideNavigationBar() {
+ enforceStatusBar();
+ synchronized(mLock) {
+ mHandler.post(new Runnable() {
+ public void run() {
+ if (mBar != null) {
+ try {
+ mBar.hideNavigationBar();
+ } catch (RemoteException ex) {
+ }
+ }
+ }
+ });
+ }
+ }
+
private void updateUiVisibilityLocked(final int vis, final int mask) {
if (mSystemUiVisibility != vis) {
mSystemUiVisibility = vis;
参考链接：
https://blog.csdn.net/way_ping_li/article/details/45727335
