Android 获取屏幕宽度，dp,sp,px转换方法

获取屏幕宽度

WindowManager wm = this.getWindowManager(); //this 指代当前的activity DisplayMetrics dm= new DisplayMetrics(); wm.getDefaultDisplay().getMetrics(dm); int widthPixels = dm.widthPixels; //或者用content也可以获取windowManager对象 WindowManager wm= (WindowManager)context.getSystemService(Context.WindowService);

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dp转化到px

private int dp2px(int dpValue){ return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,dpValue, getResources().getDisplayMetrics()); }

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sp转化到px

private int sp2px(int spValue){ return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,spValue, getResources().getDisplayMetrics()); }