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package cgeo.geocaching.settings;
import cgeo.geocaching.R;
import org.apache.commons.lang3.StringUtils;
import android.content.Context;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class NumberPickerPreference extends DialogPreference {
private EditText editText;
public NumberPickerPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public NumberPickerPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onBindDialogView(View view) {
String msg = (String) this.getDialogMessage();
if (StringUtils.isNotBlank(msg)) {
TextView tv = (TextView) view.findViewById(R.id.number_picker_message);
tv.setText(msg);
}
editText = (EditText) view.findViewById(R.id.number_picker_input);
setValue(getPersistedInt(0));
Button minus = (Button) view.findViewById(R.id.number_picker_minus);
Button plus = (Button) view.findViewById(R.id.number_picker_plus);
minus.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View button) {
Integer value = getValue();
if (value != null) {
setValue(--value);
}
}
});
plus.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View button) {
Integer value = getValue();
if (value != null) {
setValue(++value);
}
}
});
super.onBindDialogView(view);
}
private Integer getValue() {
try {
return Integer.parseInt(editText.getText().toString());
} catch (NumberFormatException e) {
return null;
}
}
private void setValue(final int value) {
int v = value;
if (v <= 0) {
v = 0;
} else if (v > Integer.MAX_VALUE) {
v = Integer.MAX_VALUE;
}
editText.setText(String.valueOf(v));
}
@Override
protected void onDialogClosed(boolean positiveResult) {
if (positiveResult) {
Integer value = getValue();
if (value != null) {
persistInt(value);
callChangeListener(value);
}
}
super.onDialogClosed(positiveResult);
}
}
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