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标题: 虚拟按键的一些定制 [打印本页]

作者: admin 时间: 2015-8-13 18:12
标题: 虚拟按键的一些定制
由于是pad需要把虚拟按键放在屏幕的左侧并且增加宽度(其实系统判断中是有放在右侧的，但是左侧时没有的需要自己修改一些计算)

PhoneWindowManager.java中 mNavigationBarHeightForRotation 这个数据里面存储的时宽度(横屏时)

横屏时，虚拟按键宽度，core/res/res/values/dimens.xml  中<dimen name="navigation_bar_width">42dp</dimen>

水平时导航栏默认是在右面的，在beginLayoutLw函数里面判断根据mNavinationBarCanMove和 displayWidth < displayHeight 来判断是否显示在右面

通过修改计算，让导航栏变到左面

--- a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -281,7 +281,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
   WindowState mNavigationBar = null;
   boolean mHasNavigationBar = false;
   boolean mCanHideNavigationBar = false;
- boolean mNavigationBarCanMove = false; // can the navigation bar ever move to the side?
+ boolean mNavigationBarCanMove = true; // can the navigation bar ever move to the side?
   boolean mNavigationBarOnBottom = true; // is the navigation bar on the bottom *right now*?
   int[] mNavigationBarHeightForRotation = new int[4];
   int[] mNavigationBarWidthForRotation = new int[4];
@@ -1188,10 +1188,10 @@ resolver.registerContentObserver(Settings.System.getUriFor(
      int longSizeDp = longSize * DisplayMetrics.DENSITY_DEFAULT / density;

      // Allow the navigation bar to move on small devices (phones).
-       mNavigationBarCanMove = shortSizeDp < 600;
-       if(mHdmiPlugged){
-          mNavigationBarCanMove = false;
-       }
+       //mNavigationBarCanMove = shortSizeDp < 600;
+       //if(mHdmiPlugged){
+       // mNavigationBarCanMove = false;
+       //}

      mHasNavigationBar = res.getBoolean(com.android.internal.R.bool.config_showNavigationBar);
      // Allow a system property to override this. Used by the emulator.
@@ -1213,7 +1213,7 @@ resolver.registerContentObserver(Settings.System.getUriFor(


      if(SystemProperties.getBoolean("ro.platform.has.mbxuimode",false)){
-          mNavigationBarCanMove = false;
+          //mNavigationBarCanMove = false;
         mCanHideNavigationBar = true;
      }

@@ -2843,12 +2843,12 @@ resolver.registerContentObserver(Settings.System.getUriFor(
                  break;
         }
      } else {
-          overscanLeft = 0;
+          overscanLeft = mNavigationBarWidthForRotation[displayRotation];
         overscanTop = 0;
         overscanRight = 0;
         overscanBottom = 0;
      }
-       mOverscanScreenLeft = mRestrictedOverscanScreenLeft = 0;
+       mOverscanScreenLeft = mRestrictedOverscanScreenLeft = mNavigationBarWidthForRotation[displayRotation];
      mOverscanScreenTop = mRestrictedOverscanScreenTop = 0;
      mOverscanScreenWidth = mRestrictedOverscanScreenWidth = displayWidth;
      mOverscanScreenHeight = mRestrictedOverscanScreenHeight = displayHeight;
@@ -2865,7 +2865,7 @@ resolver.registerContentObserver(Settings.System.getUriFor(
      mRestrictedScreenWidth = mSystemGestures.screenWidth = mUnrestrictedScreenWidth;
      mRestrictedScreenHeight = mSystemGestures.screenHeight = mUnrestrictedScreenHeight;
      mDockLeft = mContentLeft = mStableLeft = mStableFullscreenLeft
-             = mCurLeft = mUnrestrictedScreenLeft;
+             = mCurLeft = mUnrestrictedScreenLeft = mNavigationBarWidthForRotation[displayRotation];
      mDockTop = mContentTop = mStableTop = mStableFullscreenTop
               = mCurTop = mUnrestrictedScreenTop;
      mDockRight = mContentRight = mStableRight = mStableFullscreenRight
@@ -2978,13 +2978,13 @@ resolver.registerContentObserver(Settings.System.getUriFor(
                  // Landscape screen; nav bar goes to the right.
                  int left = displayWidth - overscanRight
                           - mNavigationBarWidthForRotation[displayRotation];
-                   mTmpNavigationFrame.set(left, 0, displayWidth - overscanRight, displayHeight);
-                   mStableRight = mStableFullscreenRight = mTmpNavigationFrame.left;
+                   mTmpNavigationFrame.set(0, 0, mNavigationBarWidthForRotation[displayRotation], displayHeight);
+                   mStableRight = mStableFullscreenRight = displayWidth;
                  if (transientNavBarShowing) {
                     mNavigationBarController.setBarShowingLw(true);
                  } else if (navVisible) {
                     mNavigationBarController.setBarShowingLw(true);
-                      mDockRight = mTmpNavigationFrame.left;
+                      mDockRight = displayWidth;
                     mRestrictedScreenWidth = mDockRight - mRestrictedScreenLeft;
                     mRestrictedOverscanScreenWidth = mDockRight - mRestrictedOverscanScreenLeft;
                  } else {
@@ -2996,7 +2996,7 @@ resolver.registerContentObserver(Settings.System.getUriFor(
                     // If the nav bar is currently requested to be visible,
                     // and not in the process of animating on or off, then
                     // we can tell the app that it is covered by it.
-                      mSystemRight = mTmpNavigationFrame.left;
+                      mSystemRight = displayWidth;
                  }
               }

屏幕最上面有wifi图标和时间那个地方时状态栏status_bar.xml
wifi 3g 信号这个图标是通过<include layout="@layout/signal_cluster_view" 引到状态栏的布局里面
在PhoneStatusBar.java中通过
mNetworkController.addSignalCluster(signalCluster);  和 controller和signaliew关联起来的

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