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package cgeo.geocaching.settings;
import cgeo.geocaching.R;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.TypedArray;
import android.net.Uri;
import android.preference.Preference;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
/**
* Preference which shows a dialog containing textual explanation. The dialog has two buttons, where one will open a
* hyper link with more detailed information.
* <p>
* The URL for the hyper link and the text are given as custom attributes in the preference XML definition.
* </p>
*
*/
public class InfoPreference extends AbstractAttributeBasedPrefence {
/**
* Content of the dialog, filled from preferences XML.
*/
private String text;
/**
* URL for the second button, filled from preferences XML.
*/
private String url;
/**
* text for the second button to open an URL, filled from preferences XML.
*/
private String urlButton;
private LayoutInflater inflater;
public InfoPreference(Context context) {
super(context);
init(context);
}
public InfoPreference(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public InfoPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context);
}
private void init(Context context) {
inflater = ((Activity) context).getLayoutInflater();
setPersistent(false);
}
@Override
protected int[] getAttributeNames() {
return new int[] { android.R.attr.text, R.attr.url, R.attr.urlButton };
}
@Override
protected void processAttributeValues(TypedArray values) {
text = values.getString(0);
url = values.getString(1);
urlButton = values.getString(2);
}
@Override
protected View onCreateView(ViewGroup parent) {
// show popup when clicked
setOnPreferenceClickListener(new OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(final Preference preference) {
AlertDialog.Builder builder = new AlertDialog.Builder(
preference.getContext());
builder.setMessage(text)
.setIcon(android.R.drawable.ic_dialog_info)
.setTitle(preference.getTitle())
.setPositiveButton(R.string.err_none, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
})
.setNegativeButton(urlButton, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
preference.getContext().startActivity(i);
}
});
builder.create().show();
return false;
}
});
// show an Info Icon
View v = super.onCreateView(parent);
ImageView i = (ImageView) inflater.inflate(R.layout.preference_info_icon, parent, false);
LinearLayout l = (LinearLayout) v.findViewById(android.R.id.widget_frame);
l.setVisibility(View.VISIBLE);
l.addView(i);
return v;
}
}
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