package com.pavelsikun.seekbarpreference;
import android.content.Context;
import android.content.res.TypedArray;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.preference.Preference;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.SeekBar;
import android.widget.TextView;
import net.i2p.android.router.R;
/**
* Based on MaterialSeekBarController created by mrbimc on 30.09.15.
*/
public class MaterialSeekBarController implements SeekBar.OnSeekBarChangeListener {
private final String TAG = getClass().getName();
public static final int DEFAULT_CURRENT_VALUE = 50;
private static final int DEFAULT_MAX_VALUE = 100;
private static final String DEFAULT_MEASUREMENT_UNIT = "";
private int mMaxValue;
private int mMaxDigits;
private int mCurrentValue;
private String mMeasurementUnit;
private SeekBar mSeekBar;
private TextView mSeekBarValue;
private TextView mMeasurementUnitView;
private Context mContext;
private Persistable mPersistable;
public MaterialSeekBarController(Context context, AttributeSet attrs, Persistable persistable) {
mContext = context;
mPersistable = persistable;
init(attrs, null);
}
private void init(AttributeSet attrs, View view) {
setValuesFromXml(attrs);
if(view != null) onBindView(view);
}
private void setValuesFromXml(@Nullable AttributeSet attrs) {
if (attrs == null) {
mCurrentValue = DEFAULT_CURRENT_VALUE;
mMaxValue = DEFAULT_MAX_VALUE;
mMeasurementUnit = DEFAULT_MEASUREMENT_UNIT;
} else {
TypedArray a = mContext.obtainStyledAttributes(attrs, R.styleable.SeekBarPreference);
try {
mMaxValue = a.getInt(R.styleable.SeekBarPreference_msbp_maxValue, DEFAULT_MAX_VALUE);
mCurrentValue = a.getInt(R.styleable.SeekBarPreference_msbp_defaultValue, DEFAULT_CURRENT_VALUE);
if(mCurrentValue > mMaxValue) mCurrentValue = mMaxValue / 2;
mMeasurementUnit = a.getString(R.styleable.SeekBarPreference_msbp_measurementUnit);
if (mMeasurementUnit == null)
mMeasurementUnit = DEFAULT_MEASUREMENT_UNIT;
} finally {
a.recycle();
}
}
mMaxDigits = (int) Math.log10(mMaxValue) + 1;
}
public void onBindView(@NonNull View view) {
mSeekBar = (SeekBar) view.findViewById(R.id.seekbar);
mSeekBar.setMax(mMaxValue);
mSeekBar.setOnSeekBarChangeListener(this);
mSeekBarValue = (TextView) view.findViewById(R.id.seekbar_value);
setPaddedValue(mCurrentValue);
mMeasurementUnitView = (TextView) view.findViewById(R.id.measurement_unit);
mMeasurementUnitView.setText(mMeasurementUnit);
mSeekBar.setProgress(mCurrentValue);
if (!view.isEnabled()) {
mSeekBar.setEnabled(false);
mSeekBarValue.setEnabled(false);
}
}
protected void onSetInitialValue(boolean restoreValue, @NonNull Object defaultValue) {
mCurrentValue = mMaxValue / 2;
try {
mCurrentValue = (Integer) defaultValue;
} catch (Exception ex) {
Log.e(TAG, "Invalid default value: " + defaultValue.toString());
}
}
public void setEnabled(boolean enabled) {
if (mSeekBar != null) mSeekBar.setEnabled(enabled);
if (mSeekBarValue != null) mSeekBarValue.setEnabled(enabled);
}
public void onDependencyChanged(Preference dependency, boolean disableDependent) {
if (mSeekBar != null) mSeekBar.setEnabled(!disableDependent);
if (mSeekBarValue != null) mSeekBarValue.setEnabled(!disableDependent);
}
//SeekBarListener:
@Override
public void onProgressChanged(@NonNull SeekBar seekBar, int progress, boolean fromUser) {
mCurrentValue = progress;
setPaddedValue(progress);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(@NonNull SeekBar seekBar) {
setCurrentValue(mCurrentValue);
}
private void setPaddedValue(int value) {
mSeekBarValue.setText(String.format("%0" + mMaxDigits +"d", value));
}
//public methods for manipulating this widget from java:
public void setCurrentValue(int value) {
mCurrentValue = value;
if (mPersistable != null) mPersistable.onPersist(value);
}
public int getCurrentValue() {
return mCurrentValue;
}
public void setMaxValue(int maxValue) {
mMaxValue = maxValue;
if (mSeekBar != null) mSeekBar.setMax(mMaxValue);
}
public int getMaxValue() {
return mMaxValue;
}
public void setMeasurementUnit(String measurementUnit) {
mMeasurementUnit = measurementUnit;
if (mMeasurementUnitView != null) mMeasurementUnitView.setText(mMeasurementUnit);
}
public String getMeasurementUnit() {
return mMeasurementUnit;
}
}