Android N 固定壁纸大小不拉伸

--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/ImageWallpaper.java+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/ImageWallpaper.java@@ -454,7 +454,8 @@ public class ImageWallpaper extends WallpaperService {                 // Center the scaled image                 mScale = Math.max(1f, Math.max(dw / (float) mBackground.getWidth(),                         dh / (float) mBackground.getHeight()));-                mScale = dw / (float) mBackground.getWidth();+                //mScale = dw / (float) mBackground.getWidth();                 final int availw = dw - (int) (mBackground.getWidth() * mScale);                 final int availh = dh - (int) (mBackground.getHeight() * mScale);                 int xPixels = availw / 2;@@ -463,13 +464,16 @@ public class ImageWallpaper extends WallpaperService {                 // Adjust the image for xOffset/yOffset values. If window manager is handling offsets,                 // mXOffset and mYOffset are set to 0.5f by default and therefore xPixels and yPixels                 // will remain unchanged-                final int availwUnscaled = (int)((float)dw/mScale) - mBackground.getWidth();-                final int availhUnscaled = (int)((float)dh/mScale) - mBackground.getHeight();-+                final int availwUnscaled = dw - mBackground.getWidth();+                final int availhUnscaled = dh - mBackground.getHeight();+                               //End                 if (availwUnscaled < 0)-                    xPixels += (int) (availwUnscaled * (mXOffset - .5f) * mScale + .5f);+                    xPixels += (int) (availwUnscaled * (mXOffset - .5f) + .5f);                 if (availhUnscaled < 0)-                    yPixels += (int) (availhUnscaled * (mYOffset - .5f) * mScale + .5f);+                    yPixels += (int) (availhUnscaled * (mYOffset - .5f) + .5f);                  mOffsetsChanged = false;                 if (surfaceDimensionsChanged) {
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