手机主流适配

在android中设配一直是程序员最头疼的一个问题,那么问题来了,web前端不需要么—–的确不需要,web前端一般是百分比适配;
ok~接下来详细介绍一下:
首先在android的layout中不可以使用px,因为不同的机型,用相同的px,dp值会不同,进而会造成布局的不同;影响极大.

1.图片适配

在res下drawable创建不同的drawable文件夹,在这里不建议使用mipmap,因为在as中mipmap中.9图无法识别
drawable;drawable-hpi;drawable-mdpi;drawable-xhdpi;drawable-xxhdpi;drawable-xxxhpi;

2.百分比适配

百分比适配可以很好解决机型的不适配,但是在android中weight<权重>只可以在linearlayout中实现,所以具有一定的局限性

    <LinearLayout            android:id="@+id/bottom_btn"            android:layout_width="match_parent"            android:layout_height="0dp"            android:layout_weight="1"            android:gravity="center_vertical"            android:background="@color/colorWhite">            <LinearLayout                android:layout_width="0dp"                android:layout_height="match_parent"                android:layout_weight="1"                android:gravity="center"                android:orientation="vertical">                <ImageView                    android:layout_width="20dp"                    android:layout_height="20dp"                    android:src="@drawable/tab_find_selector"/>                <TextView                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:layout_marginTop="1dp"                    android:text="找驾校"                    android:textSize="10sp"/>            LinearLayout>            <LinearLayout                android:layout_width="0dp"                android:layout_height="match_parent"                android:layout_weight="1"                android:gravity="center"                android:orientation="vertical">                <ImageView                    android:layout_width="20dp"                    android:layout_height="20dp"                    android:src="@drawable/tab_license_selector"/>                <TextView                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:layout_marginTop="1dp"                    android:text="考驾照"                    android:textSize="10sp"/>            LinearLayout>            <LinearLayout                android:layout_width="0dp"                android:layout_height="match_parent"                android:layout_weight="1"                android:gravity="center"                android:orientation="vertical">                <ImageView                    android:layout_width="20dp"                    android:layout_height="20dp"                    android:src="@drawable/tab_mine_selector"/>                <TextView                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:text="我的"                    android:textSize="10sp"/>            LinearLayout>        LinearLayout>

3.dimen尺寸适配

ok~其实以上两种适配比较简单,虽然dp为像素无关量,在不同的机型影响较小,但是也会有一定影响;所以需要匹配不同机型出不同value
在之前需要手动来配置,各种生成jar也参差不穷,综合来看,利用代码生成不同value下的x,y还是比较靠谱的<看不同没有关系,继续往下看>;下面看关键代码—->run—–>会在project下生成res,移到你的香炉里就ok;

package com.example.test;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.PrintWriter;/** * Created by zhy on 15/5/3. */public class GenerateValueFiles {    private int baseW;    private int baseH;    private String dirStr = "./res";    private final static String WTemplate = "{1}px\n";    private final static String HTemplate = "{1}px\n";    /**     * {0}-HEIGHT     */    private final static String VALUE_TEMPLATE = "values-{0}x{1}";    private static final String SUPPORT_DIMESION = "320,480;480,800;480,854;540,960;600,1024;720,1184;720,1196;720,1280;768,1024;800,1280;1080,1812;1080,1920;1440,2560;";    private String supportStr = SUPPORT_DIMESION;    public GenerateValueFiles(int baseX, int baseY, String supportStr) {        this.baseW = baseX;        this.baseH = baseY;        if (!this.supportStr.contains(baseX + "," + baseY)) {            this.supportStr += baseX + "," + baseY + ";";        }        this.supportStr += validateInput(supportStr);        System.out.println(supportStr);        File dir = new File(dirStr);        if (!dir.exists()) {            dir.mkdir();        }        System.out.println(dir.getAbsoluteFile());    }    /**     * @param supportStr     *            w,h_...w,h;     * @return     */    private String validateInput(String supportStr) {        StringBuffer sb = new StringBuffer();        String[] vals = supportStr.split("_");        int w = -1;        int h = -1;        String[] wh;        for (String val : vals) {            try {                if (val == null || val.trim().length() == 0)                    continue;                wh = val.split(",");                w = Integer.parseInt(wh[0]);                h = Integer.parseInt(wh[1]);            } catch (Exception e) {                System.out.println("skip invalidate params : w,h = " + val);                continue;            }            sb.append(w + "," + h + ";");        }        return sb.toString();    }    public void generate() {        String[] vals = supportStr.split(";");        for (String val : vals) {            String[] wh = val.split(",");            generateXmlFile(Integer.parseInt(wh[0]), Integer.parseInt(wh[1]));        }    }    private void generateXmlFile(int w, int h) {        StringBuffer sbForWidth = new StringBuffer();        sbForWidth.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");        sbForWidth.append("");        float cellw = w * 1.0f / baseW;        System.out.println("width : " + w + "," + baseW + "," + cellw);        for (int i = 1; i < baseW; i++) {            sbForWidth.append(WTemplate.replace("{0}", i + "").replace("{1}",                    change(cellw * i) + ""));        }        sbForWidth.append(WTemplate.replace("{0}", baseW + "").replace("{1}",                w + ""));        sbForWidth.append("");        StringBuffer sbForHeight = new StringBuffer();        sbForHeight.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");        sbForHeight.append("");        float cellh = h *1.0f/ baseH;        System.out.println("height : "+ h + "," + baseH + "," + cellh);        for (int i = 1; i < baseH; i++) {            sbForHeight.append(HTemplate.replace("{0}", i + "").replace("{1}",                    change(cellh * i) + ""));        }        sbForHeight.append(HTemplate.replace("{0}", baseH + "").replace("{1}",                h + ""));        sbForHeight.append("");        File fileDir = new File(dirStr + File.separator                + VALUE_TEMPLATE.replace("{0}", h + "")//                .replace("{1}", w + ""));        fileDir.mkdir();        File layxFile = new File(fileDir.getAbsolutePath(), "lay_x.xml");        File layyFile = new File(fileDir.getAbsolutePath(), "lay_y.xml");        try {            PrintWriter pw = new PrintWriter(new FileOutputStream(layxFile));            pw.print(sbForWidth.toString());            pw.close();            pw = new PrintWriter(new FileOutputStream(layyFile));            pw.print(sbForHeight.toString());            pw.close();        } catch (FileNotFoundException e) {            e.printStackTrace();        }    }    public static float change(float a) {        int temp = (int) (a * 100);        return temp / 100f;    }    public static void main(String[] args) {        int baseW = 320;        int baseH = 480;        String addition = "";        try {            if (args.length >= 3) {                baseW = Integer.parseInt(args[0]);                baseH = Integer.parseInt(args[1]);                addition = args[2];            } else if (args.length >= 2) {                baseW = Integer.parseInt(args[0]);                baseH = Integer.parseInt(args[1]);            } else if (args.length >= 1) {                addition = args[0];            }        } catch (NumberFormatException e) {            System.err                    .println("right input params : java -jar xxx.jar width height w,h_w,h_..._w,h;");            e.printStackTrace();            System.exit(-1);        }        new GenerateValueFiles(baseW, baseH, addition).generate();    }}

姑且看作一个生成不同dimen的一个tool类 ,可以配置相关参数来生成所需要的value进行尺寸适配

可以看到在每一个value下面有lay_x.xml和lay_y.xml,前者代表width,后者代表height;ok~看里面部分代码:

<dimen name="x47">117.5pxdimen><dimen name="x48">120.0pxdimen><dimen name="x49">122.5pxdimen><dimen name="x50">125.0pxdimen><dimen name="x51">127.5pxdimen><dimen name="x52">130.0pxdimen><dimen name="x53">132.5pxdimen><dimen name="x54">135.0pxdimen><dimen name="x55">137.5pxdimen><dimen name="x56">140.0pxdimen><dimen name="x57">142.5pxdimen><dimen name="x58">145.0pxdimen><dimen name="x59">147.5pxdimen><dimen name="x60">150.0pxdimen><dimen name="x61">152.5pxdimen><dimen name="x62">155.0pxdimen><dimen name="x63">157.5pxdimen><dimen name="x64">160.0pxdimen><dimen name="x65">162.5pxdimen><dimen name="x66">165.0pxdimen>

前面的xx是代表dp,后面代表px,在代码中引入合适的dp<可以看作百分比,即x1,x2…>,就胡转换为正确px,这样就不会担心机型尺寸的不适配了~有没有感觉这样看来适配很简单

手机主流适配