mirror of https://github.com/minetest/minetest.git
372 lines
9.5 KiB
Java
372 lines
9.5 KiB
Java
package net.minetest.minetest;
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import android.annotation.SuppressLint;
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import android.app.Activity;
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import android.content.res.AssetFileDescriptor;
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import android.os.AsyncTask;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Environment;
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import android.util.Log;
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import android.view.Display;
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import android.view.View;
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import android.widget.ProgressBar;
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import android.widget.TextView;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.util.Vector;
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public class MinetestAssetCopy extends Activity {
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private ProgressBar m_ProgressBar;
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private TextView m_Filename;
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private copyAssetTask m_AssetCopy;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.assetcopy);
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m_ProgressBar = findViewById(R.id.progressBar1);
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m_Filename = findViewById(R.id.textView1);
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Display display = getWindowManager().getDefaultDisplay();
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m_ProgressBar.getLayoutParams().width = (int) (display.getWidth() * 0.8);
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m_ProgressBar.invalidate();
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/* check if there's already a copy in progress and reuse in case it is*/
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MinetestAssetCopy prevActivity =
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(MinetestAssetCopy) getLastNonConfigurationInstance();
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if (prevActivity != null) {
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m_AssetCopy = prevActivity.m_AssetCopy;
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} else {
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m_AssetCopy = new copyAssetTask();
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m_AssetCopy.execute();
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}
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}
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@Override
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protected void onResume() {
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super.onResume();
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makeFullScreen();
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}
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@Override
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protected void onDestroy() {
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super.onDestroy();
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if (m_AssetCopy != null) {
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m_AssetCopy.cancel(true);
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}
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}
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private void makeFullScreen() {
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if (Build.VERSION.SDK_INT >= 19)
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this.getWindow().getDecorView().setSystemUiVisibility(
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View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
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}
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@Override
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public void onWindowFocusChanged(boolean hasFocus) {
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super.onWindowFocusChanged(hasFocus);
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if (hasFocus)
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makeFullScreen();
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}
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/* preserve asset copy background task to prevent restart of copying */
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/* this way of doing it is not recommended for latest android version */
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/* but the recommended way isn't available on android 2.x */
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public Object onRetainNonConfigurationInstance() {
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return this;
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}
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@SuppressLint("StaticFieldLeak")
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private class copyAssetTask extends AsyncTask<String, Integer, String> {
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boolean m_copy_started = false;
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String m_Foldername = "media";
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Vector<String> m_foldernames;
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Vector<String> m_filenames;
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Vector<String> m_tocopy;
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Vector<String> m_asset_size_unknown;
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private long getFullSize(String filename) {
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long size = 0;
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try {
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InputStream src = getAssets().open(filename);
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byte[] buf = new byte[4096];
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int len;
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while ((len = src.read(buf)) > 0) {
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size += len;
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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return size;
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}
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@Override
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protected String doInBackground(String... files) {
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m_foldernames = new Vector<>();
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m_filenames = new Vector<>();
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m_tocopy = new Vector<>();
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m_asset_size_unknown = new Vector<>();
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String baseDir =
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Environment.getExternalStorageDirectory().getAbsolutePath()
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+ "/";
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// prepare temp folder
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File TempFolder = new File(baseDir + "Minetest/tmp/");
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if (!TempFolder.exists()) {
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TempFolder.mkdir();
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} else {
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File[] todel = TempFolder.listFiles();
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for (File file : todel) {
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Log.v("MinetestAssetCopy", "deleting: " + file.getAbsolutePath());
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file.delete();
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}
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}
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// add a .nomedia file
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try {
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OutputStream dst = new FileOutputStream(baseDir + "Minetest/.nomedia");
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dst.close();
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} catch (IOException e) {
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Log.e("MinetestAssetCopy", "Failed to create .nomedia file");
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e.printStackTrace();
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}
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// build lists from prepared data
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BuildFolderList();
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BuildFileList();
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// scan filelist
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ProcessFileList();
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// doing work
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m_copy_started = true;
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m_ProgressBar.setMax(m_tocopy.size());
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for (int i = 0; i < m_tocopy.size(); i++) {
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try {
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String filename = m_tocopy.get(i);
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publishProgress(i);
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boolean asset_size_unknown = false;
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long filesize = -1;
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if (m_asset_size_unknown.contains(filename)) {
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File testme = new File(baseDir + "/" + filename);
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if (testme.exists())
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filesize = testme.length();
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asset_size_unknown = true;
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}
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InputStream src;
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try {
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src = getAssets().open(filename);
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} catch (IOException e) {
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Log.e("MinetestAssetCopy", "Copying file: " + filename + " FAILED (not in assets)");
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e.printStackTrace();
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continue;
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}
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// Transfer bytes from in to out
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byte[] buf = new byte[1024];
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int len = src.read(buf, 0, 1024);
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/* following handling is crazy but we need to deal with */
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/* compressed assets.Flash chips limited livetime due to */
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/* write operations, we can't allow large files to destroy */
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/* users flash. */
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if (asset_size_unknown) {
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if ((len > 0) && (len < buf.length) && (len == filesize)) {
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src.close();
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continue;
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}
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if (len == buf.length) {
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src.close();
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long size = getFullSize(filename);
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if (size == filesize) {
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continue;
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}
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src = getAssets().open(filename);
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len = src.read(buf, 0, 1024);
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}
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}
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if (len > 0) {
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int total_filesize = 0;
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OutputStream dst;
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try {
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dst = new FileOutputStream(baseDir + "/" + filename);
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} catch (IOException e) {
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Log.e("MinetestAssetCopy", "Copying file: " + baseDir +
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"/" + filename + " FAILED (couldn't open output file)");
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e.printStackTrace();
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src.close();
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continue;
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}
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dst.write(buf, 0, len);
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total_filesize += len;
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while ((len = src.read(buf)) > 0) {
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dst.write(buf, 0, len);
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total_filesize += len;
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}
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dst.close();
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Log.v("MinetestAssetCopy", "Copied file: " +
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m_tocopy.get(i) + " (" + total_filesize +
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" bytes)");
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} else if (len < 0) {
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Log.e("MinetestAssetCopy", "Copying file: " +
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m_tocopy.get(i) + " failed, size < 0");
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}
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src.close();
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} catch (IOException e) {
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Log.e("MinetestAssetCopy", "Copying file: " +
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m_tocopy.get(i) + " failed");
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e.printStackTrace();
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}
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}
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return "";
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}
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/**
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* update progress bar
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*/
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protected void onProgressUpdate(Integer... progress) {
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if (m_copy_started) {
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String todisplay = m_tocopy.get(progress[0]);
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m_ProgressBar.setProgress(progress[0]);
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m_Filename.setText(todisplay);
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} else {
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String todisplay = m_Foldername;
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String full_text = "scanning " + todisplay + " ...";
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m_Filename.setText(full_text);
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}
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}
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/**
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* check all files and folders in filelist
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*/
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void ProcessFileList() {
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String FlashBaseDir =
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Environment.getExternalStorageDirectory().getAbsolutePath();
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for (String current_path : m_filenames) {
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String FlashPath = FlashBaseDir + "/" + current_path;
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if (isAssetFolder(current_path)) {
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/* store information and update gui */
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m_Foldername = current_path;
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publishProgress(0);
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/* open file in order to check if it's a folder */
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File current_folder = new File(FlashPath);
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if (!current_folder.exists()) {
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if (!current_folder.mkdirs()) {
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Log.e("MinetestAssetCopy", "\t failed create folder: " +
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FlashPath);
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} else {
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Log.v("MinetestAssetCopy", "\t created folder: " +
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FlashPath);
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}
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}
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continue;
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}
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/* if it's not a folder it's most likely a file */
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boolean refresh = true;
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File testme = new File(FlashPath);
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long asset_filesize = -1;
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long stored_filesize;
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if (testme.exists()) {
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try {
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AssetFileDescriptor fd = getAssets().openFd(current_path);
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asset_filesize = fd.getLength();
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fd.close();
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} catch (IOException e) {
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m_asset_size_unknown.add(current_path);
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Log.e("MinetestAssetCopy", "Failed to open asset file \"" +
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FlashPath + "\" for size check");
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}
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stored_filesize = testme.length();
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if (asset_filesize == stored_filesize)
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refresh = false;
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}
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if (refresh)
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m_tocopy.add(current_path);
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}
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}
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/**
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* read list of folders prepared on package build
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*/
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void BuildFolderList() {
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try {
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InputStream is = getAssets().open("index.txt");
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BufferedReader reader = new BufferedReader(new InputStreamReader(is));
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String line = reader.readLine();
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while (line != null) {
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m_foldernames.add(line);
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line = reader.readLine();
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}
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is.close();
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} catch (IOException e1) {
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Log.e("MinetestAssetCopy", "Error on processing index.txt");
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e1.printStackTrace();
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}
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}
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/**
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* read list of asset files prepared on package build
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*/
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void BuildFileList() {
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long entrycount = 0;
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try {
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InputStream is = getAssets().open("filelist.txt");
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BufferedReader reader = new BufferedReader(new InputStreamReader(is));
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String line = reader.readLine();
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while (line != null) {
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m_filenames.add(line);
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line = reader.readLine();
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entrycount++;
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}
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is.close();
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} catch (IOException e1) {
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Log.e("MinetestAssetCopy", "Error on processing filelist.txt");
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e1.printStackTrace();
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}
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}
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protected void onPostExecute(String result) {
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finish();
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}
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boolean isAssetFolder(String path) {
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return m_foldernames.contains(path);
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}
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}
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}
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