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use the MD5 value of the font file as the unique identifier of the cache.

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吴尚昆 2022-03-03 15:18:12 +08:00 committed by osborn
parent fcc016d81c
commit f7daebfd77
1 changed files with 37 additions and 7 deletions
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42
doric-android/doric/src/main/java/pub/doric/shader/TextNode.java
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@ -44,12 +44,12 @@ import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.MessageDigest;
import java.util.concurrent.Callable;
import pub.doric.DoricContext;
import pub.doric.async.AsyncResult;
import pub.doric.extension.bridge.DoricPlugin;
import pub.doric.resource.DoricAssetsResource;
import pub.doric.resource.DoricResource;
import pub.doric.shader.richtext.CustomTagHandler;
import pub.doric.shader.richtext.HtmlParser;
@ -273,7 +273,13 @@ public class TextNode extends ViewNode<TextView> {
} else {
filePath = getContext().getFilesDir().getPath() + "/customFonts";
}
File file = createFile(fontData, filePath, (identifier == null) ? "tempFont.ttf" : identifier);
String fileName = getMD5String(fontData);
if (TextUtils.isEmpty(fileName)) {
fileName = (identifier == null) ? "tempFont.ttf" : identifier;
} else {
fileName = fileName + ".ttf";
}
File file = createFile(fontData, filePath, fileName);
Typeface customFont = Typeface.createFromFile(file);
view.setTypeface(customFont);
} catch (Exception e) {
@ -454,17 +460,41 @@ public class TextNode extends ViewNode<TextView> {
textView.invalidate();
}
public static File createFile(byte[] bfile, String filePath,String fileName) {
private static String getMD5String(byte[] input) {
try {
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] bytes = md.digest(input);
return hex(bytes);
} catch (Exception e) {
return "";
}
}
private static String hex(byte[] bytes) {
char[] hexDigits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
char[] resultCharArray = new char[bytes.length * 2];
int index = 0;
for (byte b : bytes) {
resultCharArray[index++] = hexDigits[b >>> 4 & 0xf];
resultCharArray[index++] = hexDigits[b & 0xf];
}
return new String(resultCharArray);
}
private static File createFile(byte[] bfile, String filePath,String fileName) {
BufferedOutputStream bos = null;
FileOutputStream fos = null;
File file = null;
try {
File dir = new File(filePath);
if(!dir.exists()&&dir.isDirectory()){ // 判断文件目录是否存在
if(!dir.exists() && dir.isDirectory()){
dir.mkdirs();
}
Log.d("font", fileName);
file = new File(filePath+"\\"+fileName);
String pathName = filePath + "\\" + fileName;
file = new File(pathName);
if (file.exists()) {
return file;
}
fos = new FileOutputStream(file);
bos = new BufferedOutputStream(fos);
bos.write(bfile);