准备工作：
android自带的zip解压不能处理中文文件名，需要引用第三方jar
apache的commons-compress 1.12
http://central.maven.org/maven2/org/apache/commons/commons-compress/1.12/commons-compress-1.12.jar
下载下来，放到app的libs目录
as转换到project视图
右击那个jar
然后：
就会在build.gradle(module:app)自动添加：
implementation files('libs/commons-compress-1.12.jar')
解压线程：
import android.app.ProgressDialog; import android.content.Context; import android.content.res.Resources; import android.os.AsyncTask; import android.support.annotation.NonNull; import android.support.annotation.RawRes; import android.util.Log; import org.apache.commons.compress.archivers.ArchiveEntry; import org.apache.commons.compress.archivers.zip.ZipArchiveInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.util.zip.ZipEntry; /* * @author [email protected] * create at 2018/6/12 * description:zip解压线程 */ public class LeesUnzipThread extends AsyncTask<String,Integer,Integer> { String TAG="LeesUnzipThread"; ProgressDialog progressDialog=null; RoundProgressBar roundProgressBar=null; String strZipFile=null; int srcType=0; int resID=-1;//资源ID Context mContext=null; public LeesUnzipThread(@NonNull String zipFile,ProgressDialog dlg){ strZipFile=zipFile; progressDialog=dlg; srcType=0; } public LeesUnzipThread(@NonNull String zipFile,RoundProgressBar roundProgressBar){ strZipFile=zipFile; this.roundProgressBar=roundProgressBar; srcType=0; } public LeesUnzipThread(@RawRes int srcID,@NonNull Context context,ProgressDialog dlg){ resID=srcID; mContext=context; progressDialog=dlg; srcType=1; } public LeesUnzipThread(@RawRes int srcID,@NonNull Context context,RoundProgressBar roundProgressBar){ resID=srcID; mContext=context; this.roundProgressBar=roundProgressBar; srcType=1; } private int getZipFileCount(@NonNull InputStream is){ int nFileCount=0; ZipArchiveInputStream zis=new ZipArchiveInputStream(is,"GBK"); ArchiveEntry ae=null; ZipEntry ze=null; try { while ((ze =(ZipEntry) zis.getNextEntry()) != null) { if (!ze.isDirectory()) { nFileCount++; } } }catch (IOException e){ Log.e(TAG,e.getMessage()); }finally { try{ if(zis!=null){ zis.close(); } }catch (IOException e){ Log.e(TAG,e.getMessage()); } } return nFileCount; } /* * 函数功能：获取压缩包中文件（不含目录）的数量 * Author: [email protected] * Create: 2018/6/12 22:32 */ public int getFileCount() { InputStream is = null; int nFileCount = 0;//压缩文档中文件数量 if(srcType==1){//res.raw下的zip文档 Resources resources=mContext.getResources(); is = resources.openRawResource(resID); }else if(srcType==0){//普通路径下的zip文档 File file = new File(strZipFile); try { if(!file.exists()){ throw new IOException("File "+ strZipFile +"not exist!"); } is = new FileInputStream(file); }catch (IOException e){ Log.e(TAG,e.getMessage()); } } if(is!=null){ nFileCount=getZipFileCount(is); try { is.close(); }catch (IOException e){ nFileCount=0; Log.e(TAG,e.getMessage()); } } return nFileCount; } private void unZipToFolder(@NonNull String strDestFolder){ Log.i("unZipResZip: ","strDestFolder:\t"+ strDestFolder); if(!strDestFolder.endsWith("\\") && !strDestFolder.endsWith("/") ){ strDestFolder += File.separator; } File dir = new File(strDestFolder); if(!dir.exists()){ dir.mkdirs(); } int BUFFER = 4096; //这里缓冲区我们使用4KB， InputStream is = null; int nFileCounter = 0;//解压计数（不含目录） //region 准备InputStream if(srcType==1){//res.raw下的zip文档 Resources resources=mContext.getResources(); is = resources.openRawResource(resID); }else if(srcType==0){//普通路径下的zip文档 File file = new File(strZipFile); try { if(!file.exists()){ throw new IOException("File "+ strZipFile +"not exist!"); } is = new FileInputStream(file); }catch (IOException e){ Log.e(TAG,e.getMessage()); } } //endregion if(is!=null){ //region 解压缩 ZipArchiveInputStream zis=new ZipArchiveInputStream(is,"GBK"); ArchiveEntry ae=null; try { while ((ae = zis.getNextEntry()) != null) { // 获取文件名 String entryFileName = ae.getName(); // 解压目标文件全路径 String strDstFullPath = strDestFolder + entryFileName; if (ae.isDirectory()) { File folder = new File(strDstFullPath); if(!folder.exists()){ folder.mkdirs(); } continue; } OutputStream os=new BufferedOutputStream(new FileOutputStream(strDstFullPath)); byte[] buf = new byte[1024 ]; int len = -1; while((len = zis.read(buf)) != -1) { os.write(buf, 0, len); } os.flush(); os.close(); nFileCounter++; publishProgress(nFileCounter); } }catch (IOException e){ Log.e(TAG,e.getMessage()); }finally { try{ if(zis!=null){ zis.close(); } }catch (IOException e){ Log.e(TAG,e.getMessage()); } } //endregion try { is.close(); }catch (IOException e){ Log.e(TAG,e.getMessage()); } } } @Override protected Integer doInBackground(String... strings) { //region 参数校验 String strDestFolder=strings[0]; if(strDestFolder==null){ try { throw new FileNotFoundException("dest folder if null"); } catch (FileNotFoundException e) { e.printStackTrace(); } return null; } //endregion unZipToFolder(strDestFolder); return null; } @Override protected void onProgressUpdate(Integer... progress){ super.onProgressUpdate(progress); if(progressDialog!=null){ progressDialog.setProgress(progress[0]); } else if(roundProgressBar!=null){ roundProgressBar.setProgress(progress[0]); } } }
调用示例：
PermissionUtil.verifyStoragePermissions(this); //RoundProgressBar为自定义圆形进度 mRoundProgressBar=(RoundProgressBar)findViewById(R.id.rpb_unzip); //raw下zip 内含中文目录 LeesUnzipThread unzipThread=new LeesUnzipThread(R.raw.dlsw,getBaseContext(),mRoundProgressBar);
//sdcard/download目录下zip 内含中文目录 // LeesUnzipThread unzipThread=new LeesUnzipThread("/storage/emulated/0/download/dlsw.zip",mRoundProgressBar); int nFileCount=unzipThread.getFileCount(); if(nFileCount>0){ mRoundProgressBar.setMax(nFileCount);
//开始解压到目标文件夹 unzipThread.execute("/storage/emulated/0/dlshouwen/"); }