设置锁屏时壁纸(不包括桌面壁纸)

    private void setLockWallPaper() {WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);try {Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.raw.wallpaper);wallpaperManager.setBitmap(bitmap, null, true, WallpaperManager.FLAG_LOCK); // 主要由FLAG_LOCK来限定为锁屏壁纸} catch (Exception e) {e.printStackTrace();}}

清除/还原壁纸

wallpaperManager.clearWallpaper();