參考該文章理論知識加程式碼
但是呢，該篇博文裡個人覺得程式碼封裝的不是很好，於是自己封裝了下，使用XStream生成xml。上面那篇文章裡沒有對橫豎屏進行適配，程式碼裡完善了這一點，對橫豎屏進行了適配。
在開始碼程式碼前，貼一張圖，結合前面那篇文章的理論知識一起看。
然後呢看最終適配的效果，這裡以320*480為基準，螢幕上放一個TextView，寬度為x160，高度為y240，效果圖如下
然後呢，不要驚訝，你會發現裡面的兩個pad並沒有適配，其實呢，我也母雞呀，但是我開了一個模擬器，啟動了一個pad，其實是適配了。於是就沒有然後了，有興趣的再研究下吧。
先封裝Screen類
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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是橫向，portrait是縱向 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類，使用註解
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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類，依然使用註解
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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 + "]"; } } |
繼承XStream類，預設的只會輸出xml體，我們加入xml頭
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<?xml version="1.0" encoding="utf-8"?> |
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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); } } |
最後是生成資原始檔的工具類，見註釋
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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(); } } } } |
主函式，生成常見解析度的資原始檔
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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"); } } |
原始碼下載
github下載：AndroidScreenAdapter
csdn下載：AndroidScreenAdapter