43 lines
1.5 KiB
Java
43 lines
1.5 KiB
Java
package com.cradle.iitc_mobile;
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import android.webkit.WebResourceResponse;
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import com.cradle.iitc_mobile.async.DownloadTile;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.InputStream;
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public class IITC_TileManager {
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private final IITC_Mobile mIitc;
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private static final String TYPE = "image/*";
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private static final String ENCODING = null;
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IITC_TileManager(IITC_Mobile iitc) {
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mIitc = iitc;
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}
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public WebResourceResponse getTile(String url) throws Exception {
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String path = mIitc.getApplication().getFilesDir().toString() + "/" + url;
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path = path.replace("http://", "");
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path = path.replace("https://", "");
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String[] split = path.split("/");
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String fileName = split[split.length - 1];
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path = path.replace(fileName, "");
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File file = new File(path, fileName);
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if (file.exists()) {
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// asynchronously download tile if outdated, ignore date if not connected to wifi
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if (mIitc.getWebView().isConnectedToWifi()) new DownloadTile(path, fileName).execute(url);
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// return tile from storage
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InputStream in = new BufferedInputStream(new FileInputStream(file));
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return new WebResourceResponse(TYPE, ENCODING, in);
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} else {
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// asynchronously download tile to cache and let webviewclient load the resource
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new DownloadTile(path, fileName).execute(url);
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return null;
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}
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}
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}
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