frameworks\base\policy\src\com\android\internal\policy\impl\KeyguardViewManager.java. android2.3.4_GB_T34H\frameworks\base\core\java\android\content\res\CompatibilityInfo.java diff --git a/phone/com/android/internal/policy/impl/KeyguardViewManager.java b/phone/com/android/internal/policy/impl/KeyguardViewManager.java index ba1d7f5..38bf161 100644 --- a/phone/com/android/internal/policy/impl/KeyguardViewManager.java +++ b/phone/com/android/internal/policy/impl/KeyguardViewManager.java @@ -28,6 +28,8 @@ import android.view.ViewGroup; import android.view.ViewManager; import android.view.WindowManager; import android.widget.FrameLayout; +import android.view.Display; +import android.util.DisplayMetrics; /** * Manages creating, showing, hiding and resetting the keyguard. Calls back @@ -97,9 +99,21 @@ public class KeyguardViewManager implements KeyguardWindowController { if (mKeyguardHost == null) { if (DEBUG) Log.d(TAG, "keyguard host is null, creating it..."); + WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); + DisplayMetrics dm = new DisplayMetrics(); + wm.getDefaultDisplay().getMetrics(dm); + Display display = wm.getDefaultDisplay(); + + int statusBarHeight = (int)Math.ceil( 25 * dm.density); + int height = display.getHeight(); + int width = display.getWidth(); + + Log.i(TAG, "Display width = " + width); + Log.i(TAG, "Display height = " + height); + Log.i(TAG, "Statusbar height = " + statusBarHeight); + mKeyguardHost = new KeyguardViewHost(mContext, mCallback); - final int stretch = ViewGroup.LayoutParams.MATCH_PARENT; int flags = WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN | WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER | WindowManager.LayoutParams.FLAG_KEEP_SURFACE_WHILE_ANIMATING @@ -109,7 +123,7 @@ public class KeyguardViewManager implements KeyguardWindowController { flags |= WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM; } WindowManager.LayoutParams lp = new WindowManager.LayoutParams( - stretch, stretch, WindowManager.LayoutParams.TYPE_KEYGUARD, + width, (height - statusBarHeight), WindowManager.LayoutParams.TYPE_KEYGUARD, flags, PixelFormat.TRANSLUCENT); lp.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN; lp.windowAnimations = com.android.internal.R.style.Animation_LockScreen;
解法二:这个方法解了我们的问题,测试这么长时间还没出现问题:(推荐)
1,android2.3.4_GB_T34H\frameworks\base\core\java\android\content\res
修改 frameworks/base/core/java/android/content/res/CompatibilityInfo.java中的如下部分:
public static void updateCompatibleScreenFrame(DisplayMetrics dm, int orientation, Rect outRect) { int width = dm.widthPixels; int portraitHeight = (int) (DEFAULT_PORTRAIT_HEIGHT * dm.density + 0.5f); int portraitWidth = (int) (DEFAULT_PORTRAIT_WIDTH * dm.density + 0.5f); if (orientation == Configuration.ORIENTATION_LANDSCAPE) { int xOffset = (width - portraitHeight) / 2 ; outRect.set(xOffset, 0, xOffset + portraitHeight, portraitWidth); } else { int xOffset = (width - portraitWidth) / 2 ; outRect.set(xOffset, 0, xOffset + portraitWidth, portraitHeight); }
把上面这段程序改为下面这一段程序:
==》
public static voidupdateCompatibleScreenFrame(DisplayMetrics dm, int orientation,
Rect outRect) {
int width = dm.widthPixels;
int portraitHeight = (int)(DEFAULT_PORTRAIT_HEIGHT * dm.density + 0.5f);
int portraitWidth = (int)(DEFAULT_PORTRAIT_WIDTH * dm.density + 0.5f);
if (orientation ==Configuration.ORIENTATION_LANDSCAPE) {
int xOffset = (width -portraitHeight) / 2 ;
+ outRect.set(0, 0, 0 + dm.widthPixels,dm.heightPixels); //新加入代码
- outRect.set(xOffset, 0, xOffset +portraitHeight, portraitWidth); //删除原来代码部分
} else
{
int xOffset = (width -portraitWidth) / 2 ;
+ outRect.set(0, 0, 0 +dm.widthPixels, dm.heightPixels); //新加入代码
- outRect.set(xOffset, 0, xOffset + portraitWidth, portraitHeight); //删除代码部分
}
}
红色部分是我们改动的代码,“-“ 是我们去除原始代码:
frameworks/base/core/java/android/content/res/CompatibilityInfo.java这里面,DEFAULT_PORTRAIT_HEIGHT /DEFAULT_PORTRAIT_WIDTH 这两个值比较重要。
打印出一些值,下面分析:
dm.density = 1.5 portraitHeight = 720 portraitWidth = 480 dm.widthPixels = 1024 dm.heightPixels= 600 width = dm.widthPixels
其实出现偏移的原因是:
假设横屏:
不正常情况下分析 :
xOffset = (width - portraitHeight) / 2= (1024-720)/ 2 = 152
所在在程序中原来的代码是
outRect.set(xOffset, 0, xOffset + portraitHeight, portraitWidth);//原始代码
outRect.set(152, 0, 152+ 720, 480);
xOffset 所以有了左右的偏移,如下图所示:
改动后,正常情况下分析:
改动后计算:
outRect.set(0, 0, 0 + dm.widthPixels, dm.heightPixels);
outRect.set(0, 0, 0 + 1024, 600);