根據Android Layout XM文件自動生成自定義View代碼的工具類

工具代碼:

package com.xiaolei;

import java.io.File;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Attr;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

/**
 * @author xiaolei
 */
public class Main
{
    static Map fieldNameMap = new HashMap();
    private static boolean UseDensityUtil = false;
    public static StringBuilder builder = new StringBuilder();
    public static Set importList = new HashSet();
    public static void main(String[] args) throws Exception
    {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();

        Document doc = db.parse(new File("E:\\xiaolei\\EclipseProjects\\測試單點登錄\\res\\layout\\test2.xml"));
        // 獲得根元素結點
        Element root = doc.getDocumentElement();
        parseRootElement(root);
        builder.append("\n\t}");
        if(UseDensityUtil)
        {
            writeDp2PX();
        }
        builder.append("\n}");
        // 導包
        for(String im : importList)
        {
            builder.insert(0, im+"\n");
        }
        System.out.println(builder);
    }

    public static void parseElement(String parent,Element element)
    {
        NodeList children = element.getChildNodes();
        String fildName = getAttr(element);
        builder.append("\n\t\t"+parent+".addView("+fildName+");");
        // System.out.print(">");
        for (int i = 0; i < children.getLength(); i++)
        {
            Node node = children.item(i);
            // 獲得結點的類型
            short nodeType = node.getNodeType();

            if (nodeType == Node.ELEMENT_NODE)
            {
                // 是元素，繼續遞歸
                parseElement(fildName,(Element) node);
            } else if (nodeType == Node.TEXT_NODE)
            {
                // 遞歸出口
                builder.append("\n");
            } else if (nodeType == Node.COMMENT_NODE)
            {
                builder.append("//--");
                Comment comment = (Comment) node;
                // 注釋內容
                String data = comment.getData();
                builder.append(data);
            }
        }
    }

    public static void parseRootElement(Element element)
    {
        NodeList children = element.getChildNodes();
        getRootAttr(element);
        // System.out.print(">");
        for (int i = 0; i < children.getLength(); i++)
        {
            Node node = children.item(i);
            // 獲得結點的類型
            short nodeType = node.getNodeType();

            if (nodeType == Node.ELEMENT_NODE)
            {
                // 是元素，繼續遞歸
                parseElement("this",(Element) node);
            } else if (nodeType == Node.TEXT_NODE)
            {
                // 遞歸出口
                builder.append("\n");
            } else if (nodeType == Node.COMMENT_NODE)
            {
                builder.append("//--");
                Comment comment = (Comment) node;
                // 注釋內容
                String data = comment.getData();
                builder.append(data);
            }
        }
    }

    public static String getAttr(Element element)
    {
        String tagName = element.getNodeName();
        String fildName = getFieldName(tagName);
        builder.append("\n\t\t" + tagName + " " + fildName + " = new " + tagName + "(context);");
        // element元素的所有屬性所構成的NamedNodeMap對象，需要對其進行判斷
        Map atts = new HashMap();
        NamedNodeMap map = element.getAttributes();
        // 如果該元素存在屬性
        if (null != map)
        {
            for (int i = 0; i < map.getLength(); i++)
            {
                // 獲得該元素的每一個屬性
                Attr attr = (Attr) map.item(i);
                String attrName = attr.getName();
                String attrValue = attr.getValue();
                atts.put(attrName, attrValue);
            }
            compile(tagName, fildName, atts);
        }
        return fildName;
    }

    public static void getRootAttr(Element element)
    {
        String tagName = element.getNodeName();
        String fildName = "this";
        builder.insert(0, "import android.content.Context;\n");
        builder.insert(0, "import android.util.AttributeSet;\n");
        builder.append("\npublic class mView extends " + tagName);
        builder.append("\n{");
        builder.append("\n  public mView(Context context)");
        builder.append("\n  {");
        builder.append("\n      this(context,null);");
        builder.append("\n  }");
        builder.append("\n  public mView(Context context, AttributeSet attrs)");
        builder.append("\n  {");
        builder.append("\n      this(context, attrs,0);");
        builder.append("\n  }");
        builder.append("\n  public mView(Context context, AttributeSet attrs, int defStyle)");
        builder.append("\n  {");
        builder.append("\n      super(context, attrs, defStyle);");
        builder.append("\n      InitUI(context);");
        builder.append("\n  }");
        builder.append("\n  public void InitUI(Context context)");
        builder.append("\n  {");
        // element元素的所有屬性所構成的NamedNodeMap對象，需要對其進行判斷
        Map atts = new HashMap();
        NamedNodeMap map = element.getAttributes();
        // 如果該元素存在屬性
        if (null != map)
        {
            for (int i = 0; i < map.getLength(); i++)
            {
                // 獲得該元素的每一個屬性
                Attr attr = (Attr) map.item(i);
                String attrName = attr.getName();
                String attrValue = attr.getValue();
                atts.put(attrName, attrValue);
            }
            compile(tagName, fildName, atts);
        }
    }

    /**
     * 為控件取名字
     * 
     * @param type
     *            控件類型
     * @return
     */
    public static String getFieldName(String type)
    {
        Integer num = fieldNameMap.get(type);
        if (num == null)
        {
            num = 1;
        } else
        {
            num++;
        }
        fieldNameMap.put(type, num);
        String s[] = type.split("\\.");
        return (s[s.length - 1] + num).toLowerCase();
    }

    /**
     * 根據屬性 名稱 和類型 自動生成相應代碼
     * 
     * @param type
     * @param fieldname
     * @param atts
     */
    public static void compile(String type, String fieldname, Map atts)
    {
        String height = atts.get("android:layout_height").toUpperCase();
        String width = atts.get("android:layout_width").toUpperCase();
        String weight = atts.get("android:layout_weight");
        String params = getFieldName("LayoutParams");
        if(height.toUpperCase().endsWith("DP")||height.toUpperCase().endsWith("DIP")||height.toUpperCase().endsWith("PX"))
        {
            height = getNumFromDemin(height);
            height = "DensityUtil.dip2px(context, "+height+")";
        }else 
        {
            height = "LayoutParams."+ height;
        }
        if(width.toUpperCase().endsWith("DP")||width.toUpperCase().endsWith("DIP")||width.toUpperCase().endsWith("PX"))
        {
            width = getNumFromDemin(width);
            width = "DensityUtil.dip2px(context, "+width+")";
        }else 
        {
            width = "LayoutParams."+ width;
        }
        if (weight == null)
        {
            builder.append("\n\t\tLayoutParams " + params + " = new LayoutParams(" + width+ ", " + height + ");");
        } else
        {
            builder.append("\n\t\tLayoutParams " + params + " = new LayoutParams("+ width+ "," + height + "," + weight + ");");
        }
        String layout_gravity = atts.get("android:layout_gravity");
        if (layout_gravity != null)
        {
            importList.add("import android.view.Gravity;");
            builder.append("\n\t\t" + params + ".gravity = Gravity." + layout_gravity.toUpperCase() + ";");
        }

        String layout_margin = atts.get("android:layout_margin");
        if (layout_margin != null)
        {
            layout_margin = getNumFromDemin(layout_margin);
            builder.append("\n\t\t" + params + ".setMargins(DensityUtil.dip2px(context, " + layout_margin
                    + "), DensityUtil.dip2px(context, " + layout_margin + "), DensityUtil.dip2px(context, "
                    + layout_margin + "), DensityUtil.dip2px(context, " + layout_margin + "));");
        }
        String layout_left = "0";
        String layout_top = "0";
        String layout_right = "0";
        String layout_bottom = "0";
        String layout_marginLeft = atts.get("android:layout_marginLeft");
        if (layout_marginLeft != null)
        {
            layout_marginLeft = getNumFromDemin(layout_marginLeft);
            layout_left = layout_marginLeft;
        }
        String layout_marginStart = atts.get("android:layout_marginStart");
        if (layout_marginStart != null)
        {
            layout_marginStart = getNumFromDemin(layout_marginStart);
            layout_left = layout_marginStart;
        }
        String layout_marginTop = atts.get("android:layout_marginTop");
        if (layout_marginTop != null)
        {
            layout_marginTop = getNumFromDemin(layout_marginTop);
            layout_top = layout_marginTop;
        }
        String layout_marginBottom = atts.get("android:layout_marginBottom");
        if (layout_marginBottom != null)
        {
            layout_marginBottom = getNumFromDemin(layout_marginBottom);
            layout_bottom = layout_marginBottom;
        }
        String layout_marginRight = atts.get("android:layout_marginRight");
        if (layout_marginRight != null)
        {
            layout_marginRight = getNumFromDemin(layout_marginRight);
            layout_right = layout_marginRight;
        }
        String layout_marginEnd = atts.get("android:layout_marginEnd");
        if (layout_marginEnd != null)
        {
            layout_marginEnd = getNumFromDemin(layout_marginEnd);

            layout_right = layout_marginEnd;
        }
        if(!(layout_left.equals("0") && layout_top.equals("0") && layout_right.equals("0") && layout_bottom.equals("0")))
        {
            builder.append("\n\t\t" + params + ".setMargins(DensityUtil.dip2px(context, " + layout_left
                    + "), DensityUtil.dip2px(context, " + layout_top + "), DensityUtil.dip2px(context, " + layout_right
                    + "), DensityUtil.dip2px(context, " + layout_bottom + "));");
        }
        builder.append("\n\t\t" + fieldname + ".setLayoutParams(" + params + ");");

        String orientation = atts.get("android:orientation");
        if(orientation != null)
        {
            importList.add("import android.widget.LinearLayout;");
            builder.append("\n\t\t" + fieldname + ".setOrientation(LinearLayout." + orientation.toUpperCase() + ");");
        }

        String visible = atts.get("android:visibility");
        if (visible != null)
        {
            importList.add("import android.view.View;");
            builder.append("\n\t\t" + fieldname + ".setVisibility(View." + visible.toUpperCase() + ");");
        }
        String text = atts.get("android:text");
        if (text != null)
        {
            builder.append("\n\t\t" + fieldname + ".setText(\"" + text + "\");");
        }
        String hint = atts.get("android:hint");
        if (hint != null)
        {
            builder.append("\n\t\t" + fieldname + ".setHint(\"" + hint + "\");");
        }
        String ems = atts.get("android:ems");
        if (ems != null)
        {
            builder.append("\n\t\t" + fieldname + ".setEms(" + ems + ");");
        }
        String gravity = atts.get("android:gravity");
        if (gravity != null)
        {
            importList.add("import android.view.Gravity;");
            builder.append("\n\t\t" + fieldname + ".setGravity(Gravity." + gravity.toUpperCase() + ");");
        }
        String textSize = atts.get("android:textSize");
        if (textSize != null)
        {
            textSize = getNumFromDemin(textSize);
            builder.append("\n\t\t" + fieldname + ".setTextSize(DensityUtil.sp2px(context, " + textSize + "));");
        }
        String padding = atts.get("android:padding");
        if(padding != null)
        {
            padding = getNumFromDemin(padding);
            builder.append("\n\t\t" + fieldname + ".setPadding(DensityUtil.dip2px(context, " + padding + "),DensityUtil.dip2px(context, " + padding + "),DensityUtil.dip2px(context, " + padding + "),DensityUtil.dip2px(context, " + padding + "));");
        }

        String android_paddingLeft = "0";
        String android_paddingTop = "0";
        String android_paddingRight = "0";
        String android_paddingBottom = "0";

        String paddingLeft = atts.get("android:paddingLeft");
        if(paddingLeft != null)
        {
            paddingLeft = getNumFromDemin(paddingLeft);
            android_paddingLeft = paddingLeft;
        }

        String paddingStart = atts.get("android:paddingStart");
        if(paddingStart != null)
        {
            paddingStart = getNumFromDemin(paddingStart);
            android_paddingLeft = paddingStart;
        }
        String paddingTop = atts.get("android:paddingTop");
        if(paddingTop != null)
        {
            paddingTop = getNumFromDemin(paddingTop);
            android_paddingTop = paddingTop;
        }
        String paddingRight = atts.get("android:paddingRight");
        if(paddingRight != null)
        {
            paddingRight = getNumFromDemin(paddingRight);
            android_paddingRight = paddingRight;
        }
        String paddingEnd = atts.get("android:paddingEnd");
        if(paddingEnd != null)
        {
            paddingEnd = getNumFromDemin(paddingEnd);
            android_paddingRight = paddingEnd;
        }
        String paddingBottom = atts.get("android:paddingBottom");
        if(paddingBottom != null)
        {
            paddingBottom = getNumFromDemin(paddingBottom);
            android_paddingBottom = paddingBottom;
        }
        if(!(android_paddingLeft.equals("0") && android_paddingRight.equals("0") && android_paddingTop.equals("0") && android_paddingBottom.equals("0")))
        {
            builder.append("\n\t\t" + fieldname + ".setPadding(DensityUtil.dip2px(context, " + android_paddingLeft + "),DensityUtil.dip2px(context, " + android_paddingTop + "),DensityUtil.dip2px(context, " + android_paddingRight + "),DensityUtil.dip2px(context, " + android_paddingBottom + "));");
        }

        String textColor = atts.get("android:textColor");
        if(textColor != null)
        {
            importList.add("import android.graphics.Color;");
            builder.append("\n\t\t" + fieldname + ".setTextColor(Color.parseColor(\""+textColor+"\"));");
        }
        String numColumns = atts.get("android:numColumns");
        if(numColumns != null)
        {
            builder.append("\n\t\t" + fieldname + ".setNumColumns("+numColumns+");");
        }
        String scrollbars = atts.get("android:scrollbars");
        if(scrollbars != null)
        {
            if("none".equals(scrollbars))
            {
                builder.append("\n\t\t" + fieldname + ".setHorizontalScrollBarEnabled(false);");
                builder.append("\n\t\t" + fieldname + ".setVerticalScrollBarEnabled(false);");
            }else if ("horizontal".equals(scrollbars)) 
            {
                builder.append("\n\t\t" + fieldname + ".setHorizontalScrollBarEnabled(true);");

            }else if ("vertical".equals(scrollbars)) 
            {
                builder.append("\n\t\t" + fieldname + ".setVerticalScrollBarEnabled(true);");
            }
        }
        String alpha = atts.get("android:alpha");
        if(alpha != null)
        {
            builder.append("\n\t\t" + fieldname + ".setAlpha("+alpha+");");
        }
        String contentDescription = atts.get("android:contentDescription");
        if(contentDescription != null)
        {
            builder.append("\n\t\t" + fieldname + ".setContentDescription("+contentDescription+");");
        }
        String fadeScrollbars = atts.get("android:fadeScrollbars");
        if(fadeScrollbars!=null)
        {
            builder.append("\n\t\t" + fieldname + ".setScrollbarFadingEnabled("+fadeScrollbars+");");
        }
        String focusable = atts.get("android:focusable");
        if(focusable!=null)
        {
            builder.append("\n\t\t" + fieldname + ".setFocusable("+focusable+");");
        }
        String focusableInTouchMode = atts.get("android:focusableInTouchMode");
        if(focusableInTouchMode!=null)
        {
            builder.append("\n\t\t" + fieldname + ".setFocusableInTouchMode("+focusableInTouchMode+");");
        }
        String minHeight = atts.get("android:minHeight");
        if(minHeight!=null)
        {
            minHeight = getNumFromDemin(minHeight);
            builder.append("\n\t\t" + fieldname + ".setMinimumHeight(DensityUtil.dip2px(context,"+minHeight+"));");
        }
        String minWidth = atts.get("android:minWidth");
        if(minWidth != null)
        {
            minWidth = getNumFromDemin(minWidth);
            builder.append("\n\t\t" + fieldname + ".setMinimumWidth(DensityUtil.dip2px(context,"+minWidth+"));");
        }
        String tag = atts.get("android:tag");
        if(tag != null)
        {
            builder.append("\n\t\t" + fieldname + ".setTag(\""+tag+"\");");
        }

    }

    public static String getNumFromDemin(String demin)
    {
        UseDensityUtil = true;
        String result = "";
        if(demin.toLowerCase().endsWith("dp") || demin.toLowerCase().endsWith("px") || demin.toLowerCase().endsWith("sp"))
        {
            result = demin.substring(0, demin.length() - 2);
        }else if(demin.toLowerCase().endsWith("dip"))
        {
            result = demin.substring(0, demin.length() - 3);
        }else {
            result = demin;
        }
        return result;
    }

    public static void writeDp2PX()
    {
        builder.append("\n\t/**");
        builder.append("\n\t * dp、sp 轉換為 px 的工具類");
        builder.append("\n\t * ");
        builder.append("\n\t */");
        builder.append("\n\tpublic static class DensityUtil {");
        builder.append("\n\t    /**");
        builder.append("\n\t    * 將px值轉換為dip或dp值，保證尺寸大小不變");
        builder.append("\n\t    * @param pxValue");
        builder.append("\n\t    * @param scale （DisplayMetrics類中屬性density）");
        builder.append("\n\t    * @return");
        builder.append("\n\t    */");
        builder.append("\n\t    public static int px2dip(Context context, float pxValue)");
        builder.append("\n\t    {");
        builder.append("\n\t        final float scale = context.getResources().getDisplayMetrics().density;");
        builder.append("\n\t        return (int) (pxValue / scale + 0.5f);");
        builder.append("\n\t    }");
        builder.append("\n\t");
        builder.append("\n\t    /**");
        builder.append("\n\t    * 將dip或dp值轉換為px值，保證尺寸大小不變");
        builder.append("\n\t    * @param dipValue");
        builder.append("\n\t    * @param scale（DisplayMetrics類中屬性density）");
        builder.append("\n\t    * @return ");
        builder.append("\n\t    */");
        builder.append("\n\t    public static int dip2px(Context context, float dipValue)");
        builder.append("\n\t    {");
        builder.append("\n\t        final float scale = context.getResources().getDisplayMetrics().density;");
        builder.append("\n\t        return (int) (dipValue * scale + 0.5f);");
        builder.append("\n\t    }");
        builder.append("\n\t");
        builder.append("\n\t    /**");
        builder.append("\n\t    * 將px值轉換為sp值，保證文字大小不變");
        builder.append("\n\t    * @param pxValue");
        builder.append("\n\t    * @param fontScale DisplayMetrics類中屬性scaledDensity");
        builder.append("\n\t    * @return");
        builder.append("\n\t    */");
        builder.append("\n\t    public static int px2sp(Context context, float pxValue)");
        builder.append("\n\t    {");
        builder.append("\n\t        final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;");
        builder.append("\n\t        return (int) (pxValue / fontScale + 0.5f);");
        builder.append("\n\t    }");
        builder.append("\n\t");
        builder.append("\n\t    /**");
        builder.append("\n\t    * 將sp值轉換為px值，保證文字大小不變");
        builder.append("\n\t    *");
        builder.append("\n\t    * @param spValue");
        builder.append("\n\t    * @param fontScale （DisplayMetrics類中屬性scaledDensity）");
        builder.append("\n\t    * @return");
        builder.append("\n\t    */");
        builder.append("\n\t    public static int sp2px(Context context, float spValue)");
        builder.append("\n\t    {");
        builder.append("\n\t        final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;");
        builder.append("\n\t        return (int) (spValue * fontScale + 0.5f);");
        builder.append("\n\t    }");
        builder.append("\n\t}");
    }
}

看效果：

這是生成的自定義View的Java文件：

import android.view.View;
import android.widget.LinearLayout;
import android.view.Gravity;
import android.graphics.Color;
import android.util.AttributeSet;
import android.content.Context;

public class mView extends LinearLayout
{
    public mView(Context context)
    {
        this(context,null);
    }
    public mView(Context context, AttributeSet attrs)
    {
        this(context, attrs,0);
    }
    public mView(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
        InitUI(context);
    }
    public void InitUI(Context context)
    {
        LayoutParams layoutparams1 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        this.setLayoutParams(layoutparams1);
        this.setOrientation(LinearLayout.VERTICAL);

        FrameLayout framelayout1 = new FrameLayout(context);
        LayoutParams layoutparams2 = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        framelayout1.setLayoutParams(layoutparams2);
        this.addView(framelayout1);

        LinearLayout linearlayout1 = new LinearLayout(context);
        LayoutParams layoutparams3 = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        linearlayout1.setLayoutParams(layoutparams3);
        linearlayout1.setOrientation(LinearLayout.VERTICAL);
        linearlayout1.setVisibility(View.VISIBLE);
        framelayout1.addView(linearlayout1);

        LinearLayout linearlayout2 = new LinearLayout(context);
        LayoutParams layoutparams4 = new LayoutParams(LayoutParams.MATCH_PARENT, DensityUtil.dip2px(context, 48));
        linearlayout2.setLayoutParams(layoutparams4);
        linearlayout2.setOrientation(LinearLayout.HORIZONTAL);
        linearlayout2.setGravity(Gravity.CENTER_VERTICAL);
        linearlayout1.addView(linearlayout2);

        TextView textview1 = new TextView(context);
        LayoutParams layoutparams5 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        textview1.setLayoutParams(layoutparams5);
        textview1.setText("←");
        textview1.setGravity(Gravity.CENTER_VERTICAL);
        textview1.setPadding(DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0));
        linearlayout2.addView(textview1);

        LinearLayout linearlayout3 = new LinearLayout(context);
        LayoutParams layoutparams6 = new LayoutParams(DensityUtil.dip2px(context, 0),LayoutParams.MATCH_PARENT,1);
        linearlayout3.setLayoutParams(layoutparams6);
        linearlayout3.setOrientation(LinearLayout.HORIZONTAL);
        linearlayout3.setGravity(Gravity.CENTER);
        linearlayout2.addView(linearlayout3);

        TextView textview2 = new TextView(context);
        LayoutParams layoutparams7 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        textview2.setLayoutParams(layoutparams7);
        textview2.setText("九月");
        textview2.setGravity(Gravity.CENTER_VERTICAL);
        textview2.setPadding(DensityUtil.dip2px(context, 5),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 5),DensityUtil.dip2px(context, 0));
        linearlayout3.addView(textview2);

        TextView textview3 = new TextView(context);
        LayoutParams layoutparams8 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        textview3.setLayoutParams(layoutparams8);
        textview3.setText("1994");
        textview3.setGravity(Gravity.CENTER_VERTICAL);
        textview3.setPadding(DensityUtil.dip2px(context, 5),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 5),DensityUtil.dip2px(context, 0));
        linearlayout3.addView(textview3);


        TextView textview4 = new TextView(context);
        LayoutParams layoutparams9 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        layoutparams9.setMargins(DensityUtil.dip2px(context, 5), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0));
        textview4.setLayoutParams(layoutparams9);
        textview4.setText("→");
        textview4.setGravity(Gravity.CENTER_VERTICAL);
        textview4.setPadding(DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0));
        linearlayout2.addView(textview4);


        GridView gridview1 = new GridView(context);
        LayoutParams layoutparams10 = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        layoutparams10.setMargins(DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0));
        gridview1.setLayoutParams(layoutparams10);
        gridview1.setPadding(DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0));
        gridview1.setNumColumns(7);
        gridview1.setHorizontalScrollBarEnabled(false);
        gridview1.setVerticalScrollBarEnabled(false);
        linearlayout1.addView(gridview1);


        LinearLayout linearlayout4 = new LinearLayout(context);
        LayoutParams layoutparams11 = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        linearlayout4.setLayoutParams(layoutparams11);
        linearlayout4.setOrientation(LinearLayout.VERTICAL);
        linearlayout4.setVisibility(View.GONE);
        framelayout1.addView(linearlayout4);

        LinearLayout linearlayout5 = new LinearLayout(context);
        LayoutParams layoutparams12 = new LayoutParams(LayoutParams.MATCH_PARENT, DensityUtil.dip2px(context, 48));
        linearlayout5.setLayoutParams(layoutparams12);
        linearlayout5.setOrientation(LinearLayout.HORIZONTAL);
        linearlayout5.setGravity(Gravity.CENTER_VERTICAL);
        linearlayout4.addView(linearlayout5);

        TextView textview5 = new TextView(context);
        LayoutParams layoutparams13 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        textview5.setLayoutParams(layoutparams13);
        textview5.setText("確定");
        textview5.setGravity(Gravity.CENTER_VERTICAL);
        textview5.setTextSize(DensityUtil.sp2px(context, 15));
        textview5.setPadding(DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0));
        textview5.setTextColor(Color.parseColor("#ffff00"));
        linearlayout5.addView(textview5);

        LinearLayout linearlayout6 = new LinearLayout(context);
        LayoutParams layoutparams14 = new LayoutParams(DensityUtil.dip2px(context, 0),LayoutParams.MATCH_PARENT,1);
        linearlayout6.setLayoutParams(layoutparams14);
        linearlayout6.setOrientation(LinearLayout.HORIZONTAL);
        linearlayout6.setGravity(Gravity.CENTER);
        linearlayout5.addView(linearlayout6);

        TextView textview6 = new TextView(context);
        LayoutParams layoutparams15 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        textview6.setLayoutParams(layoutparams15);
        textview6.setText("1994");
        textview6.setGravity(Gravity.CENTER_VERTICAL);
        textview6.setPadding(DensityUtil.dip2px(context, 5),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 5),DensityUtil.dip2px(context, 0));
        linearlayout6.addView(textview6);


        TextView textview7 = new TextView(context);
        LayoutParams layoutparams16 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        layoutparams16.setMargins(DensityUtil.dip2px(context, 5), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0));
        textview7.setLayoutParams(layoutparams16);
        textview7.setText("取消");
        textview7.setGravity(Gravity.CENTER_VERTICAL);
        textview7.setPadding(DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0));
        linearlayout5.addView(textview7);


        GridView gridview2 = new GridView(context);
        LayoutParams layoutparams17 = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        layoutparams17.setMargins(DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0));
        gridview2.setLayoutParams(layoutparams17);
        gridview2.setPadding(DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0));
        gridview2.setNumColumns(4);
        gridview2.setHorizontalScrollBarEnabled(false);
        gridview2.setVerticalScrollBarEnabled(false);
        linearlayout4.addView(gridview2);


        LinearLayout linearlayout7 = new LinearLayout(context);
        LayoutParams layoutparams18 = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        linearlayout7.setLayoutParams(layoutparams18);
        linearlayout7.setOrientation(LinearLayout.VERTICAL);
        linearlayout7.setVisibility(View.GONE);
        framelayout1.addView(linearlayout7);

        LinearLayout linearlayout8 = new LinearLayout(context);
        LayoutParams layoutparams19 = new LayoutParams(LayoutParams.MATCH_PARENT, DensityUtil.dip2px(context, 48));
        linearlayout8.setLayoutParams(layoutparams19);
        linearlayout8.setOrientation(LinearLayout.HORIZONTAL);
        linearlayout8.setGravity(Gravity.CENTER_VERTICAL);
        linearlayout7.addView(linearlayout8);

        TextView textview8 = new TextView(context);
        LayoutParams layoutparams20 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        textview8.setLayoutParams(layoutparams20);
        textview8.setText("←");
        textview8.setGravity(Gravity.CENTER_VERTICAL);
        textview8.setPadding(DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0));
        linearlayout8.addView(textview8);

        LinearLayout linearlayout9 = new LinearLayout(context);
        LayoutParams layoutparams21 = new LayoutParams(DensityUtil.dip2px(context, 0),LayoutParams.MATCH_PARENT,1);
        linearlayout9.setLayoutParams(layoutparams21);
        linearlayout9.setOrientation(LinearLayout.HORIZONTAL);
        linearlayout9.setGravity(Gravity.CENTER);
        linearlayout8.addView(linearlayout9);

        TextView textview9 = new TextView(context);
        LayoutParams layoutparams22 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        textview9.setLayoutParams(layoutparams22);
        textview9.setText("1994-2015");
        textview9.setGravity(Gravity.CENTER_VERTICAL);
        textview9.setPadding(DensityUtil.dip2px(context, 5),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 5),DensityUtil.dip2px(context, 0));
        linearlayout9.addView(textview9);


        TextView textview10 = new TextView(context);
        LayoutParams layoutparams23 = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        layoutparams23.setMargins(DensityUtil.dip2px(context, 5), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0));
        textview10.setLayoutParams(layoutparams23);
        textview10.setText("→");
        textview10.setGravity(Gravity.CENTER_VERTICAL);
        textview10.setPadding(DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 15),DensityUtil.dip2px(context, 0));
        linearlayout8.addView(textview10);


        GridView gridview3 = new GridView(context);
        LayoutParams layoutparams24 = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        layoutparams24.setMargins(DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0), DensityUtil.dip2px(context, 0));
        gridview3.setLayoutParams(layoutparams24);
        gridview3.setPadding(DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0),DensityUtil.dip2px(context, 0));
        gridview3.setNumColumns(4);
        gridview3.setHorizontalScrollBarEnabled(false);
        gridview3.setVerticalScrollBarEnabled(false);
        linearlayout7.addView(gridview3);



        TextView textview11 = new TextView(context);
        LayoutParams layoutparams25 = new LayoutParams(LayoutParams.MATCH_PARENT, DensityUtil.dip2px(context, 48));
        textview11.setLayoutParams(layoutparams25);
        textview11.setText("今日");
        textview11.setGravity(Gravity.CENTER);
        this.addView(textview11);

    }
    /**
     * dp、sp 轉換為 px 的工具類
     * 
     */
    public static class DensityUtil {
        /**
        * 將px值轉換為dip或dp值，保證尺寸大小不變
        * @param pxValue
        * @param scale （DisplayMetrics類中屬性density）
        * @return
        */
        public static int px2dip(Context context, float pxValue)
        {
            final float scale = context.getResources().getDisplayMetrics().density;
            return (int) (pxValue / scale + 0.5f);
        }

        /**
        * 將dip或dp值轉換為px值，保證尺寸大小不變
        * @param dipValue
        * @param scale（DisplayMetrics類中屬性density）
        * @return 
        */
        public static int dip2px(Context context, float dipValue)
        {
            final float scale = context.getResources().getDisplayMetrics().density;
            return (int) (dipValue * scale + 0.5f);
        }

        /**
        * 將px值轉換為sp值，保證文字大小不變
        * @param pxValue
        * @param fontScale DisplayMetrics類中屬性scaledDensity
        * @return
        */
        public static int px2sp(Context context, float pxValue)
        {
            final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
            return (int) (pxValue / fontScale + 0.5f);
        }

        /**
        * 將sp值轉換為px值，保證文字大小不變
        *
        * @param spValue
        * @param fontScale （DisplayMetrics類中屬性scaledDensity）
        * @return
        */
        public static int sp2px(Context context, float spValue)
        {
            final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
            return (int) (spValue * fontScale + 0.5f);
        }
    }
}

這是被解析的Layout XML文件：

    <framelayout android:layout_height="wrap_content" android:layout_width="match_parent">
        
            

                

                

                    

                    
                

                
            

            
        
        
            

                

                
                    
                
                
            
            
        
        
            

                

                
                    
                
                
            
            
        
    </framelayout>
    

源文件預覽

生成的代碼使用方式：

自定義控件預覽