AndroidAPS/app/src/main/java/info/nightscout/utils/NumberPicker.java

249 lines
7.3 KiB
Java
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package info.nightscout.utils;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
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import android.text.TextWatcher;
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import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.text.NumberFormat;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import info.nightscout.androidaps.MainApp;
import info.nightscout.androidaps.R;
/**
* Created by mike on 28.06.2016.
*/
public class NumberPicker extends LinearLayout implements View.OnKeyListener,
View.OnTouchListener, View.OnClickListener {
private static Logger log = LoggerFactory.getLogger(NumberPicker.class);
TextView editText;
Button minusButton;
Button plusButton;
Double value;
Double minValue = 0d;
Double maxValue = 1d;
Double step = 1d;
NumberFormat formater;
boolean allowZero = false;
private Handler mHandler;
private ScheduledExecutorService mUpdater;
private class UpdateCounterTask implements Runnable {
private boolean mInc;
private int repeated = 0;
private int multiplier = 1;
private final int doubleLimit = 5;
public UpdateCounterTask(boolean inc) {
mInc = inc;
}
public void run() {
Message msg = new Message();
if (repeated % doubleLimit == 0) multiplier *= 2;
repeated++;
msg.arg1 = multiplier;
msg.arg2 = repeated;
if (mInc) {
msg.what = MSG_INC;
} else {
msg.what = MSG_DEC;
}
mHandler.sendMessage(msg);
}
}
private static final int MSG_INC = 0;
private static final int MSG_DEC = 1;
public NumberPicker(Context context) {
super(context, null);
}
public NumberPicker(Context context, AttributeSet attrs) {
super(context, attrs);
this.initialize(context, attrs);
}
public NumberPicker(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
private void initialize(Context context, AttributeSet attrs) {
// set layout view
LayoutInflater.from(context).inflate(R.layout.number_picker_layout, this, true);
// init ui components
this.minusButton = (Button) findViewById(R.id.decrement);
this.plusButton = (Button) findViewById(R.id.increment);
this.editText = (EditText) findViewById(R.id.display);
mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_INC:
inc(msg.arg1);
return;
case MSG_DEC:
dec(msg.arg1);
return;
}
super.handleMessage(msg);
}
};
minusButton.setOnTouchListener(this);
minusButton.setOnKeyListener(this);
minusButton.setOnClickListener(this);
plusButton.setOnTouchListener(this);
plusButton.setOnKeyListener(this);
plusButton.setOnClickListener(this);
}
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public void removeTextChangedListener(TextWatcher textWatcher) {
editText.removeTextChangedListener(textWatcher);
}
public void addTextChangedListener(TextWatcher textWatcher) {
editText.addTextChangedListener(textWatcher);
}
public void setParams(Double initValue, Double minValue, Double maxValue, Double step, NumberFormat formater, boolean allowZero, TextWatcher textWatcher) {
setParams(initValue, minValue, maxValue, step, formater, allowZero);
editText.addTextChangedListener(textWatcher);
}
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public void setParams(Double initValue, Double minValue, Double maxValue, Double step, NumberFormat formater, boolean allowZero) {
this.value = initValue;
this.minValue = minValue;
this.maxValue = maxValue;
this.step = step;
this.formater = formater;
this.allowZero = allowZero;
updateEditText();
}
public void setValue(Double value) {
this.value = value;
updateEditText();
}
public Double getValue() {
return value;
}
public String getText() {
return editText.getText().toString();
}
public void setStep(Double step) {
this.step = step;
}
private void inc(int multiplier) {
value += step * multiplier;
if (value > maxValue) {
value = maxValue;
ToastUtils.showToastInUiThread(MainApp.instance().getApplicationContext(), MainApp.sResources.getString(R.string.youareonallowedlimit));
stopUpdating();
}
updateEditText();
}
private void dec( int multiplier) {
value -= step * multiplier;
if (value < minValue) {
value = minValue;
ToastUtils.showToastInUiThread(MainApp.instance().getApplicationContext(), MainApp.sResources.getString(R.string.youareonallowedlimit));
stopUpdating();
}
updateEditText();
}
private void updateEditText() {
if (value == 0d && !allowZero)
editText.setText("");
else
editText.setText(formater.format(value));
}
private void startUpdating(boolean inc) {
if (mUpdater != null) {
log.debug("Another executor is still active");
return;
}
mUpdater = Executors.newSingleThreadScheduledExecutor();
mUpdater.scheduleAtFixedRate(new UpdateCounterTask(inc), 200, 200,
TimeUnit.MILLISECONDS);
}
private void stopUpdating() {
if (mUpdater != null) {
mUpdater.shutdownNow();
mUpdater = null;
}
}
@Override
public void onClick(View v) {
if (mUpdater == null) {
if (v == plusButton) {
inc(1);
} else {
dec(1);
}
}
}
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
boolean isKeyOfInterest = keyCode == KeyEvent.KEYCODE_DPAD_CENTER || keyCode == KeyEvent.KEYCODE_ENTER;
boolean isReleased = event.getAction() == KeyEvent.ACTION_UP;
boolean isPressed = event.getAction() == KeyEvent.ACTION_DOWN
&& event.getAction() != KeyEvent.ACTION_MULTIPLE;
if (isKeyOfInterest && isReleased) {
stopUpdating();
} else if (isKeyOfInterest && isPressed) {
startUpdating(v == plusButton);
}
return false;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
boolean isReleased = event.getAction() == MotionEvent.ACTION_UP || event.getAction() == MotionEvent.ACTION_CANCEL;
boolean isPressed = event.getAction() == MotionEvent.ACTION_DOWN;
if (isReleased) {
stopUpdating();
} else if (isPressed) {
startUpdating(v == plusButton);
}
return false;
}
}