android 分辨率适配的方法

以前在公司做项目的时候，遇到了分辨率的适配问题，说起来当时挺纠结的，因为没有外网，所以这个问题，都是黑暗中摸索的，尝试了许多方法，最后和徒弟们一起搞出了这个方法，具体行不行，先和大家分享下，这个方法不能说万能的，但是最起码它解决了分辨率跟密集度的关系，但是也引来一个问题，就是布局会因为图片资源小而失真，所以这也需要美工的同志多多配合的，废话不说，贴代码：
第一步，先创建一个view信息的javabean类：
代码如下:
package com.zte.layout.adapter;
import Android.view.View;

public class LayoutInfORMation
{

private View view;

private double viewWidth;

private double viewHeight;

private double viewMarginLeft;

private double viewMarginTop;

public static int R=-1;

public static int L=-2;

private int parentLayoutType;

public LayoutInformation(View view, double viewWidth, double viewHeight,
double viewMarginLeft, double viewMarginTop, int parentLayoutType)
{
this.view = view;
this.viewWidth = viewWidth;
this.viewHeight = viewHeight;
this.viewMarginLeft = viewMarginLeft;
this.viewMarginTop = viewMarginTop;
this.parentLayoutType=parentLayoutType;
}

public View getView()
{
return view;
}

public void setView(View view)
{
this.view = view;
}

public double getViewWidth()
{
return viewWidth;
}

public void setViewWidth(double viewWidth)
{
this.viewWidth = viewWidth;
}

public double getViewHeight()
{
return viewHeight;
}

public void setViewHeight(double viewHeight)
{
this.viewHeight = viewHeight;
}

public double getViewMarginLeft()
{
return viewMarginLeft;
}

public void setViewMarginLeft(double viewMarginLeft)
{
this.viewMarginLeft = viewMarginLeft;
}

public double getViewMarginTop()
{
return viewMarginTop;
}

public void setViewMarginTop(double viewMarginTop)
{
this.viewMarginTop = viewMarginTop;
}

public int getParentLayoutType()
{
return parentLayoutType;
}

public void setParentLayoutType(int parentLayoutType)
{
this.parentLayoutType = parentLayoutType;
}
}

第二步：创建一个计算方法：
代码如下:
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;

public class MyLayoutAdapter
{

public double STANDARD_SCREEN_WIDTH;

public double STANDARD_SCREEN_HEIGHT;

public double CURRENT_SCREEN_WIDTH;

public double CURRENT_SCREEN_HEIGHT;

public static final double STANDARD_DENSITY = 160;

private double CURRENT_DENSITY;

private double DENSITY_RATIO;

private double WIDTH_RATIO;

private double HEIGHT_RATIO;

private double viewStandardWidth;

private double viewStandardHeight;

private double viewStandardMarginLeft;

private double viewStandardMarginTop;

private double viewCurrentWidth;

private double viewCurrentHeight;

private double viewCurrentMarginLeft;

private double viewCurrentMarginTop;

private View view;

private int parentLayoutType;

private final int LAYOUT_TYPE_RELATiVELAYOUT = LayoutInformation.R;

private final int LAYOUT_TYPE_LINEARLAYOUT = LayoutInformation.L;

private final int LAYOUTPARAMS_WARP_CONTENT = LayoutParams.WRAP_CONTENT;

private final int LAYOUTPARAMS_FILL_PARENT = LayoutParams.FILL_PARENT;
private Context context;

public MyLayoutAdapter(Context context, double standardWidth,
double standardHeight)
{
this.context = context;
getScreenSize();
STANDARD_SCREEN_HEIGHT = standardHeight;
STANDARD_SCREEN_WIDTH = standardWidth;
// 计算宽高比率
WIDTH_RATIO = CURRENT_SCREEN_WIDTH / STANDARD_SCREEN_WIDTH;
HEIGHT_RATIO = CURRENT_SCREEN_HEIGHT / STANDARD_SCREEN_HEIGHT;
}

private void getScreenSize()
{
DisplayMetrics displayMetrics = new DisplayMetrics();
((Activity) context).getWindowManager().getDefaultDisplay()
getMetrics(displayMetrics);
CURRENT_SCREEN_WIDTH = displayMetrics.widthPixels;
CURRENT_SCREEN_HEIGHT = displayMetrics.heightPixels;
CURRENT_DENSITY = displayMetrics.densityDpi;
DENSITY_RATIO = STANDARD_DENSITY / CURRENT_DENSITY;
}

public void setVi ewLayout(List<LayoutInformation> listdata)
{
for (int i = 0; i < listdata.size(); i++)
{
view = listdata.get(i).getView();
viewStandardWidth = listdata.get(i).getViewWidth();
viewStandardHeight = listdata.get(i).getViewHeight();
viewStandardMarginLeft = listdata.get(i).getViewMarginLeft();
viewStandardMarginTop = listdata.get(i).getViewMarginTop();
setLayoutParams();
viewCurrentMarginLeft = viewStandardMarginLeft * WIDTH_RATIO;
viewCurrentMarginTop = viewStandardMarginTop * HEIGHT_RATIO;
parentLayoutType = listdata.get(i).getParentLayoutType();
setLayoutByParentLayoutType();
}
}

private void setLayoutParams()
{
// 如果基准的宽是wrap_content或者fill_parent则使用原值，否则进行计算得到通配后的值
if (viewStandardWidth == LAYOUTPARAMS_WARP_CONTENT
|| viewStandardWidth == LAYOUTPARAMS_FILL_PARENT)
{
viewCurrentWidth = viewStandardWidth;
} else
{
viewCurrentWidth = viewStandardWidth * WIDTH_RATIO;
}
// 如果基准的宽是wrap_content或者fill_parent则使用原值，否则进行计算得到通配后的值
if (viewStandardHeight == LAYOUTPARAMS_WARP_CONTENT
|| viewStandardHeight == LAYOUTPARAMS_FILL_PARENT)
{
viewCurrentHeight = viewStandardHeight;
} else
{
viewCurrentHeight = viewStandardHeight * HEIGHT_RATIO;
}
}

private void setLayoutByParentLayoutType()
{
if (parentLayoutType == LAYOUT_TYPE_RELATiVELAYOUT)
{
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
(int) viewCurrentWidth, (int) viewCurrentHeight);
params.setMargins((int) viewCurrentMarginLeft,
(int) viewCurrentMarginTop, 0, 0);
view.setLayoutParams(params);
} else if (parentLayoutType == LAYOUT_TYPE_LINEARLAYOUT)
{
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
(int) viewCurrentWidth, (int) viewCurrentHeight);
params.setMargins((int) viewCurrentMarginLeft,
(int) viewCurrentMarginTop, 0, 0);
view.setLayoutParams(params);
}
}

public int setTextSize(int standardSize)
{
int currentSize;
currentSize = (int) (standardSize * WIDTH_RATIO * DENSITY_RATIO);
return currentSize;
}
}

第三步，写一个接口：
代码如下:
public interface InitAllView{

public void initAllView();
}

第四步：代码控制：
代码如下:

private void initWildcard() {
myLayout = new MyLayoutAdapter(this, 320, 480);
listInfo = new ArrayList<LayoutInformation>();
listInfo.add(new LayoutInformation(mBtn1, LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT, 0, 0, LayoutInformation.R));
listInfo.add(new LayoutInformation(mNowReGISterBtn, 80, 27.3, 14.7, 0,
LayoutInformation.R));
listInfo.add(new LayoutInformation(mNextRegisterBtn, 80, 27.3, 14.7, 0,
LayoutInformation.R));
// listInfo.add(new LayoutInformation(mCheckBtn, 17.3,17.3, 14.7, 0,
// LayoutInformation.L));
mBtn1.setTextSize(myLayout.setTextSize(12));
mNowRegisterBtn.setTextSize(myLayout.setTextSize(12));
mNextRegisterBtn.setTextSize(myLayout.setTextSize(12));
myLayout.setViewLayout(listInfo);
}
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