android 代码从kmz文件中提取kml文件然后解析kml文件
时间: 2024-01-05 17:03:44 浏览: 148
以下是一个示例代码,可以从KMZ文件中提取KML文件并解析KML文件:
```java
import android.os.AsyncTask;
import android.os.Environment;
import android.util.Log;
import org.xmlpull.v1.XmlPullParserException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
public class KMLParserTask extends AsyncTask<File, Void, Void> {
private static final String TAG = "KMLParserTask";
@Override
protected Void doInBackground(File... files) {
if (files.length == 0) {
return null;
}
File kmzFile = files[0];
try {
InputStream inputStream = new FileInputStream(kmzFile);
ZipInputStream zipInputStream = new ZipInputStream(inputStream);
ZipEntry zipEntry;
while ((zipEntry = zipInputStream.getNextEntry()) != null) {
if (zipEntry.getName().endsWith(".kml")) {
InputStream kmlInputStream = zipInputStream;
KMLParser kmlParser = new KMLParser();
kmlParser.parse(kmlInputStream);
break;
}
}
zipInputStream.close();
inputStream.close();
} catch (FileNotFoundException e) {
Log.e(TAG, "File not found: " + kmzFile.getAbsolutePath(), e);
} catch (IOException e) {
Log.e(TAG, "IOException", e);
} catch (XmlPullParserException e) {
Log.e(TAG, "XmlPullParserException", e);
}
return null;
}
}
```
在上面的示例中,我们使用`ZipInputStream`从KMZ文件中提取KML文件。我们搜索扩展名为“.kml”的Zip条目,然后将其输入流传递给KML解析器进行解析。`KMLParser`是自定义类,它使用`XmlPullParser`来解析KML文件。您可以根据需要替换解析器类。
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