在 Android 中解压缩文件夹 [英] Unzip Folder in Android
本文介绍了在 Android 中解压缩文件夹的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我尝试制作一个显示 100 张图片的应用.我想压缩照片文件夹,然后将其放在我的项目中.现在我需要了解如何将 zip 文件夹复制到内部存储,然后在 android 中解压缩?
I try to make an app that show 100 pictures. I want to zip folder of photos and then put it on my project. now i need to understand How can copy a zip folder to internal storage,And then unzip it in android?
推荐答案
您可以将 .zip 文件包含在 apk 的 Assets 文件夹中,并将它们包含在代码中,将 .zip 复制到内部存储并使用 ZipInputStream.
You can include your .zip file on Assets folder of apk, and them on code, copy the .zip to internal storage and unzipping using a ZipInputStream.
首先将 de .zip 文件复制到内部存储,然后解压缩文件:
First copy de .zip file to internal storage, and after unzip a file:
protected void copyFromAssetsToInternalStorage(String filename){
AssetManager assetManager = getAssets();
try {
InputStream input = assetManager.open(filename);
OutputStream output = openFileOutput(filename, Context.MODE_PRIVATE);
copyFile(input, output);
} catch (IOException e) {
e.printStackTrace();
}
}
private void unZipFile(String filename){
try {
ZipInputStream zipInputStream = new ZipInputStream(openFileInput(filename));
ZipEntry zipEntry;
while((zipEntry = zipInputStream.getNextEntry()) != null){
FileOutputStream zipOutputStream = openFileOutput(zipEntry.getName(), MODE_PRIVATE);
int length;
byte[] buffer = new byte[1024];
while((length = zipInputStream.read(buffer)) > 0){
zipOutputStream.write(buffer, 0, length);
}
zipOutputStream.close();
zipInputStream.closeEntry();
}
zipInputStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private void copyFile(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int read;
while((read = in.read(buffer)) != -1){
out.write(buffer, 0, read);
}
}
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