Android万能分辨率适应法

（1）获取屏幕的尺寸

WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
Display d = windowManager.getDefaultDisplay();
mWidth = d.getWidth();
mHeight = d.getHeight();
DisplayMetrics dm = getResources().getDisplayMetrics();
mScreenDensity = dm.density;

（2）美工设计图的尺寸

uiWidth,uiHeight

（3）获取缩放比例

float scaleWidth = mWidth / uiWidth;
float scaleHeight = mHeight/ uiHeight;

（4）全部布局的尺寸用代码实现

public static int getWidthSize(int size){
return (int) (size * scaleWidth);
}

public static int getHightSize(int size){
return (int) (size * scaleHeight);
}

public static float getTextSize(int pxSize){
return (pxSize*scaleHeight) / mScreenDensity;
}

public static void setViewSize(int width, int height, View v){
int paramWidth = getWidthSize(width);
int paramHeight = getHightSize(height);
ViewGroup.MarginLayoutParams params
= (ViewGroup.MarginLayoutParams) v.getLayoutParams();
if (width != INVALID){
params.width = paramWidth;
}
if (height != INVALID){
params.height = paramHeight;
}
v.setLayoutParams(params);
}

public static void setViewPadding(int left, int top, int right, int bottom,
View v){
left = getWidthSize(left);
top = getHightSize(top);
right = getWidthSize(right);
bottom = getWidthSize(bottom);
v.setPadding(left, top, right, bottom);
}

public static void setViewMargin(int left, int top, int right, int bottom,
View v){
int paramLeft = getWidthSize(left);
int paramTop =  getHightSize(top);
int paramRight = getWidthSize(right);
int paramBottom = getHightSize(bottom);
ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams)
v.getLayoutParams();
if (left != INVALID){
params.leftMargin = paramLeft;
}
if (right != INVALID){
params.rightMargin = paramRight;
}
if (top != INVALID){
params.topMargin = paramTop;
}
if (bottom != INVALID){
params.bottomMargin = paramBottom;
}
v.setLayoutParams(params);
}