参考该文章理论知识加代码
但是呢，该篇博文里个人觉得代码封装的不是很好，于是自己封装了下，使用XStream生成xml。上面那篇文章里没有对横竖屏进行适配，代码里完善了这一点，对横竖屏进行了适配。
在开始码代码前，贴一张图，结合前面那篇文章的理论知识一起看。
然后呢看最终适配的效果，这里以320*480为基准，屏幕上放一个TextView，宽度为x160，高度为y240，效果图如下
然后呢，不要惊讶，你会发现里面的两个pad并没有适配，其实呢，我也母鸡呀，但是我开了一个模拟器，启动了一个pad，其实是适配了。于是就没有然后了，有兴趣的再研究下吧。
先封装Screen类
package cn.edu.zafu.model;
/**
* @author lizhangqu
* @description
* @date
*/
public class Screen {
private int width;
private int height;
public Screen(int width, int height) {
this.width = width;
this.height = height;
}
public int getWidth() {
return width;
}
public void setWidth(int width) {
this.width = width;
}
public int getHeight() {
return height;
}
public void setHeight(int height) {
this.height = height;
}
public String getDir(boolean portrait) {
// landscape是横向，portrait是纵向
if (portrait) {
return String.format("values-%dx%d", height, width);
} else {
return String.format("values-land-%dx%d", height, width);
}
}
@Override
public String toString() {
return "Screen [width=" + width + ", height=" + height + "]";
}
}
其次是Rescource类，使用注解
package cn.edu.zafu.model;
import java.util.ArrayList;
import java.util.List;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamImplicit;
/**
* @author lizhangqu
* @description
* @date
*/
@XStreamAlias("resources")
public class Resource {
@XStreamImplicit(itemFieldName = "dimen")
List<Dimen> dimens = new ArrayList<Dimen>();
public Resource() {
}
public Resource(List<Dimen> dimens) {
this.dimens = dimens;
}
public List<Dimen> getDimens() {
return dimens;
}
public void setDimens(List<Dimen> dimens) {
this.dimens = dimens;
}
@Override
public String toString() {
return "Resource [dimens=" + dimens + "]";
}
}
Dimen类，依然使用注解
package cn.edu.zafu.model;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamAsAttribute;
import com.thoughtworks.xstream.annotations.XStreamConverter;
import com.thoughtworks.xstream.converters.extended.ToAttributedValueConverter;
/**
* @author lizhangqu
* @description
* @date
*/
@XStreamAlias("dimen")
@XStreamConverter(value = ToAttributedValueConverter.class, strings = { "value" })
public class Dimen {
@XStreamAlias("name")
@XStreamAsAttribute()
private String name;
private String value;
public Dimen() {
}
public Dimen(String name, String value) {
this.name = name;
this.value = value;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
@Override
public String toString() {
return "Dimen [name=" + name + ", value=" + value + "]";
}
}
继承XStream类，默认的只会输出xml体，我们加入xml头
<?xml version="1.0" encoding="utf-8"?>package cn.edu.zafu.util;
import java.io.OutputStream;
import java.io.Writer;
import com.thoughtworks.xstream.XStream;
/**
* @author lizhangqu
* @description
* @date
*/
public class XmlDeclarationXStream extends XStream {
private String xmlDeclaration;
private String version;
private String ecoding;
public XmlDeclarationXStream() {
this("1.0", "utf-8");
}
public XmlDeclarationXStream(String version, String ecoding) {
this.version = version;
this.ecoding = ecoding;
buildDeclaration();
}
private void buildDeclaration() {
// generate xmlDeclaration
StringBuffer buffer = new StringBuffer();
xmlDeclaration = buffer.append("<?xml version=\"").append(this.version)
.append("\" encoding=\"").append(this.ecoding).append("\"?>")
.append("\n").toString();
buffer = null;
}
public String getDeclaration() {
return xmlDeclaration;
}
@Override
public void toXML(Object arg0, OutputStream arg1) {
try {
String dec = this.getDeclaration();
byte[] bytesOfDec = dec.getBytes(this.ecoding);
arg1.write(bytesOfDec);
} catch (Exception e) {
e.printStackTrace();
}
super.toXML(arg0, arg1);
}
@Override
public void toXML(Object arg0, Writer arg1) {
try {
arg1.write(getDeclaration());
} catch (Exception e) {
e.printStackTrace();
}
super.toXML(arg0, arg1);
}
}最后是生成资源文件的工具类，见注释
package cn.edu.zafu.util;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.DecimalFormat;
import java.util.List;
import cn.edu.zafu.model.Dimen;
import cn.edu.zafu.model.Resource;
import cn.edu.zafu.model.Screen;
import com.thoughtworks.xstream.XStream;
/**
*
* @author lizhangqu
* @description a tool to generate what we want
* @date
*/
public class Generator {
// default base width
private static final int DEFAULT_BASE_WIDTH = 320;
// default base height
private static final int DEFAULT_BASE_HEIGHT = 480;
// decimal formator
private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat(
"#.##");
// a xstream,XmlDeclarationXStream extends XStream
private static final XStream XSTREAM = new XmlDeclarationXStream();
//res dir
private File resFile=null;
// base width
private int baseWidth;
// base height
private int beseHeight;
/**
* using default width and height to generate default width is 320,default
* height is 480
*/
public Generator() {
this(DEFAULT_BASE_WIDTH, DEFAULT_BASE_HEIGHT);
}
/**
* using baseWidth and baseHeight to generator
*
* @param baseWidth
* @param beseHeight
*/
public Generator(int baseWidth, int beseHeight) {
this.baseWidth = baseWidth;
this.beseHeight = beseHeight;
XSTREAM.autodetectAnnotations(true);
this.resFile = new File("./res");
if (!resFile.exists()) {
resFile.mkdir();
}
}
/**
* using w and h to generate xml
*
* @param w
* screen width
* @param h
* screen height
* @return generated xml
*/
public String generateXml(Screen screen) {
Resource resource = new Resource();
List<Dimen> dimens = resource.getDimens();
float cellWidth = screen.getWidth() * 1.0f / baseWidth;
float cellHeight = screen.getHeight() * 1.0f / beseHeight;
String result = null;
Dimen dimen = null;
for (int i = 1; i <= baseWidth; i++) {
result = DECIMAL_FORMAT.format(i * cellWidth);
dimen = new Dimen();
dimen.setName(String.format("x%d", i));
dimen.setValue(String.format("%spx", result));
dimens.add(dimen);
}
for (int i = 1; i <= beseHeight; i++) {
result = DECIMAL_FORMAT.format(i * cellHeight);
dimen = new Dimen();
dimen.setName(String.format("y%d", i));
dimen.setValue(String.format("%spx", result));
dimens.add(dimen);
}
String xml = XSTREAM.toXML(resource);
return xml;
}
public String generateXmlLandscape(Screen screen) {
Screen s=new Screen(screen.getHeight(),screen.getWidth());
return generateXml(s);
}
/**
* write xmlContent to a File
*
* @param screen
* @param xmlContent
*/
public void write2File(String valuesPath, String xmlContent) {
File fileDir = new File(this.resFile + File.separator + valuesPath);
fileDir.mkdir();
File file = new File(fileDir.getAbsolutePath(), "dimens.xml");
BufferedWriter bw = null;
FileOutputStream fos = null;
try {
fos = new FileOutputStream(file);
bw = new BufferedWriter(new OutputStreamWriter(fos));
bw.write(xmlContent);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (bw != null) {
bw.close();
bw = null;
}
if (fos != null) {
fos.close();
fos = null;
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
主函数，生成常见分辨率的资源文件
package cn.edu.zafu;
import java.util.ArrayList;
import java.util.List;
import cn.edu.zafu.model.Screen;
import cn.edu.zafu.util.Generator;
/**
* @author lizhangqu
* @description
* @date
*/
public class Main {
public static void main(String[] args) {
new Main().bulid();
}
public void bulid() {
Generator generator = new Generator(320, 480);
List<Screen> screens = new ArrayList<Screen>();
Screen screen = null;
screen = new Screen(320, 400);
screens.add(screen);
screen = new Screen(320, 480);
screens.add(screen);
screen = new Screen(480, 800);
screens.add(screen);
screen = new Screen(480, 854);
screens.add(screen);
screen = new Screen(540, 960);
screens.add(screen);
screen = new Screen(600, 1024);
screens.add(screen);
screen = new Screen(720, 1184);
screens.add(screen);
screen = new Screen(720, 1196);
screens.add(screen);
screen = new Screen(720, 1280);
screens.add(screen);
screen = new Screen(768, 1024);
screens.add(screen);
screen = new Screen(768, 1280);
screens.add(screen);
screen = new Screen(800, 1280);
screens.add(screen);
screen = new Screen(1080, 1812);
screens.add(screen);
screen = new Screen(1080, 1920);
screens.add(screen);
screen = new Screen(1200, 1920);
screens.add(screen);
screen = new Screen(1440, 2560);
screens.add(screen);
screen = new Screen(2048, 1536);
screens.add(screen);
screen = new Screen(2560, 1600);
screens.add(screen);
int size = screens.size();
for (int i = 0; i < size; i++) {
String portrait = generator.generateXml(screens.get(i));
generator.write2File(screens.get(i).getDir(true), portrait);
String landscape = generator.generateXmlLandscape(screens.get(i));
generator.write2File(screens.get(i).getDir(false), landscape);
System.out.println("create file "+i+" success");
}
System.out.println("success");
}
}
源码下载
github下载：AndroidScreenAdapter
csdn下载：AndroidScreenAdapter
时间： 2024-09-30 16:54:38