我在嘗試設置壁紙

Question

public HeavyLifter(Context context, Handler callback) { 
     this.context = context; 
     this.callback = callback; 
     this.manager = (WallpaperManager) context.getSystemService(Context.WALLPAPER_SERVICE); 
    } 

Error: Suspicious cast to WallpaperManager for a WALLPAPER_SERVICE: expected WallpaperService [ServiceCast] this.manager = (WallpaperManager) context.getSystemService(Context.WALLPAPER_SERVICE);

我該如何解決這個問題，當出現以下錯誤？

Answer 1

您應該使用WallpaperManager的getInstance()方法來查看實例。

更改如下：

this.manager = (WallpaperManager) context.getSystemService(Context.WALLPAPER_SERVICE); 

要這樣：

this.manager = WallpaperManager.getInstance(context);