Android万能分辨率适应法

在Android开发中比较头疼的是Android的分辨率问题，那么这里给大家介绍个万能办法，这个办法的优点是可以实现万能适应，给开发和美工设计提供了依据，但是对开发来说代码量也不少，具体办法你听我来说：

（1）获取屏幕的尺寸

1	WindowManager windowManager = (WindowManager)

2	getSystemService(Context.WINDOW_SERVICE);

3	Display d = windowManager.getDefaultDisplay();

4	mWidth = d.getWidth();

5	mHeight = d.getHeight();

6	DisplayMetrics dm = getResources().getDisplayMetrics();

7	mScreenDensity = dm.density;

（2）美工设计图的尺寸

  uiWidth,uiHeight

（3）获取缩放比例

1	float scaleWidth = mWidth / uiWidth;

2	float scaleHeight = mHeight/ uiHeight;

（4）所有布局的尺寸用代码实现：

01	public static int getWidthSize(int size){

02	return (int) (size * scaleWidth);

03

}

04

05	public static int getHightSize(int size){

06	return (int) (size * scaleHeight);

07

}

08

09	public static float getTextSize(int pxSize){

10	return (pxSize*scaleHeight) / mScreenDensity;

11

}

12

13	public static void setViewSize(int width, int height, View v){

14	int paramWidth = getWidthSize(width);

15	int paramHeight = getHightSize(height);

16	ViewGroup.MarginLayoutParams params

17	= (ViewGroup.MarginLayoutParams) v.getLayoutParams();

18	if (width != INVALID){

19	params.width = paramWidth;

20

}

21	if (height != INVALID){

22	params.height = paramHeight;

23

}

24	v.setLayoutParams(params);

25

}

26

27	public static void setViewPadding(int left, int top, int right, int bottom,

28

View v){

29	left = getWidthSize(left);

30	top = getHightSize(top);

31	right = getWidthSize(right);

32	bottom = getWidthSize(bottom);

33	v.setPadding(left, top, right, bottom);

34

}

35

36

37	public static void setViewMargin(int left, int top, int right, int bottom,

38

View v){

39	int paramLeft = getWidthSize(left);

40	int paramTop =  getHightSize(top);

41	int paramRight = getWidthSize(right);

42	int paramBottom = getHightSize(bottom);

43	ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams)

44	v.getLayoutParams();

45	if (left != INVALID){

46	params.leftMargin = paramLeft;

47

}

48	if (right != INVALID){

49	params.rightMargin = paramRight;

50

}

51	if (top != INVALID){

52	params.topMargin = paramTop;

53

}

54	if (bottom != INVALID){

55	params.bottomMargin = paramBottom;

56

}

57	v.setLayoutParams(params);

58

}

    （5）这里是设置尺寸的代码：

1	setViewSize(100, 100, mView);

2	setViewMargin(20, 0, 0, 20, mView);

3	setViewPadding(10, 10, 10, 10, mView);

4	mTextView.setTextSize(getTextSize(30));

    由上在设计效果图时，可对图内元素进行尺寸标注，程序即可实现按比例缩放。