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package de.danoeh.antennapod.adapter;
import android.app.Dialog;
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RadioButton;
import android.widget.TextView;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.core.preferences.UserPreferences;
import de.danoeh.antennapod.core.util.Converter;
import de.danoeh.antennapod.core.util.StorageUtils;
import de.danoeh.antennapod.dialog.ChooseDataFolderDialog;
import me.zhanghai.android.materialprogressbar.MaterialProgressBar;
public class DataFolderAdapter extends RecyclerView.Adapter<DataFolderAdapter.ViewHolder> {
private final ChooseDataFolderDialog.RunnableWithString selectionHandler;
private final String currentPath;
private final List<StoragePath> entries;
private final String freeSpaceString;
private Dialog dialog;
public DataFolderAdapter(Context context, ChooseDataFolderDialog.RunnableWithString selectionHandler) {
this.entries = getStorageEntries(context);
this.currentPath = getCurrentPath();
this.selectionHandler = selectionHandler;
this.freeSpaceString = context.getString(R.string.choose_data_directory_available_space);
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View entryView = inflater.inflate(R.layout.choose_data_folder_dialog_entry, parent, false);
return new ViewHolder(entryView);
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
StoragePath storagePath = entries.get(position);
String freeSpace = Converter.byteToString(storagePath.getAvailableSpace());
String totalSpace = Converter.byteToString(storagePath.getTotalSpace());
holder.path.setText(storagePath.getShortPath());
holder.size.setText(String.format(freeSpaceString, freeSpace, totalSpace));
holder.progressBar.setProgress(storagePath.getUsagePercentage());
holder.root.setOnClickListener((View v) -> selectAndDismiss(storagePath));
holder.radioButton.setOnClickListener((View v) -> selectAndDismiss(storagePath));
if (storagePath.getFullPath().equals(currentPath)) {
holder.radioButton.toggle();
}
}
@Override
public int getItemCount() {
if (currentPath == null) {
return 0;
} else {
return entries.size();
}
}
public void setDialog(Dialog dialog) {
this.dialog = dialog;
}
private String getCurrentPath() {
File dataFolder = UserPreferences.getDataFolder(null);
if (dataFolder != null) return dataFolder.getAbsolutePath();
return null;
}
private List<StoragePath> getStorageEntries(Context context) {
File[] mediaDirs = ContextCompat.getExternalFilesDirs(context, null);
final List<StoragePath> entries = new ArrayList<>(mediaDirs.length);
for (File dir : mediaDirs) {
if (isNotWritable(dir)) continue;
entries.add(new StoragePath(dir.getAbsolutePath()));
}
return entries;
}
private boolean isNotWritable(File dir) {
return dir == null || !dir.exists() || !dir.canRead() || !dir.canWrite();
}
private void selectAndDismiss(StoragePath storagePath) {
selectionHandler.run(storagePath.getFullPath());
dialog.dismiss();
}
static class ViewHolder extends RecyclerView.ViewHolder {
private View root;
private TextView path;
private TextView size;
private RadioButton radioButton;
private MaterialProgressBar progressBar;
ViewHolder(View itemView) {
super(itemView);
root = itemView.findViewById(R.id.root);
path = itemView.findViewById(R.id.path);
size = itemView.findViewById(R.id.size);
radioButton = itemView.findViewById(R.id.radio_button);
progressBar = itemView.findViewById(R.id.used_space);
}
}
static class StoragePath {
private final String path;
StoragePath(String path) {
this.path = path;
}
String getShortPath() {
int prefixIndex = path.indexOf("Android");
return (prefixIndex > 0) ? path.substring(0, prefixIndex) : path;
}
String getFullPath() {
return this.path;
}
long getAvailableSpace() {
return StorageUtils.getFreeSpaceAvailable(path);
}
long getTotalSpace() {
return StorageUtils.getTotalSpaceAvailable(path);
}
int getUsagePercentage() {
return 100 - (int) (100 * getAvailableSpace() / (float) getTotalSpace());
}
}
}
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