Android万能分辨率适应法

最新推荐文章于 2025-09-10 11:40:21 发布

转载最新推荐文章于 2025-09-10 11:40:21 发布 · 71 阅读

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原文链接：http://www.cnblogs.com/vijay/p/3740792.html

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#移动开发

本文详细介绍了如何通过编程方法将屏幕尺寸转换为美工设计图尺寸，并提供了相应的代码实现，包括获取屏幕尺寸、计算缩放比例、调整布局尺寸等关键步骤。

（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）所有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);
}