package com.fsck.k9droidtn.activity;
import java.util.Locale;
import android.app.Activity;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import com.fsck.k9droidtn.K9;
public class K9Activity extends Activity {
private GestureDetector gestureDetector;
@Override
public void onCreate(Bundle icicle) {
setLanguage(this, K9.getK9Language());
setTheme(K9.getK9ThemeResourceId());
super.onCreate(icicle);
setupFormats();
// Gesture detection
gestureDetector = new GestureDetector(new MyGestureDetector());
}
public static void setLanguage(Context context, String language) {
Locale locale;
if (language == null || language.equals("")) {
locale = Locale.getDefault();
} else if (language.length() == 5 && language.charAt(2) == '_') {
// language is in the form: en_US
locale = new Locale(language.substring(0, 2), language.substring(3));
} else {
locale = new Locale(language);
}
Configuration config = new Configuration();
config.locale = locale;
context.getResources().updateConfiguration(config,
context.getResources().getDisplayMetrics());
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
super.dispatchTouchEvent(ev);
return gestureDetector.onTouchEvent(ev);
}
@Override
public void onResume() {
super.onResume();
setupFormats();
}
private java.text.DateFormat mTimeFormat;
private void setupFormats() {
mTimeFormat = android.text.format.DateFormat.getTimeFormat(this); // 12/24 date format
}
public java.text.DateFormat getTimeFormat() {
return mTimeFormat;
}
/**
* Called when a swipe from right to left is handled by {@link MyGestureDetector}. See
* {@link android.view.GestureDetector.OnGestureListener#onFling(android.view.MotionEvent, android.view.MotionEvent, float, float)}
* for more information on the {@link MotionEvent}s being passed.
* @param e1 First down motion event that started the fling.
* @param e2 The move motion event that triggered the current onFling.
*/
protected void onSwipeRightToLeft(final MotionEvent e1, final MotionEvent e2) {
}
/**
* Called when a swipe from left to right is handled by {@link MyGestureDetector}. See
* {@link android.view.GestureDetector.OnGestureListener#onFling(android.view.MotionEvent, android.view.MotionEvent, float, float)}
* for more information on the {@link MotionEvent}s being passed.
* @param e1 First down motion event that started the fling.
* @param e2 The move motion event that triggered the current onFling.
*/
protected void onSwipeLeftToRight(final MotionEvent e1, final MotionEvent e2) {
}
protected Animation inFromRightAnimation() {
return slideAnimation(0.0f, +1.0f);
}
protected Animation outToLeftAnimation() {
return slideAnimation(0.0f, -1.0f);
}
private Animation slideAnimation(float right, float left) {
Animation slide = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, right, Animation.RELATIVE_TO_PARENT, left,
Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f
);
slide.setDuration(125);
slide.setFillBefore(true);
slide.setInterpolator(new AccelerateInterpolator());
return slide;
}
class MyGestureDetector extends SimpleOnGestureListener {
private boolean gesturesEnabled = false;
/**
* Creates a new {@link android.view.GestureDetector.OnGestureListener}. Enabled/disabled based upon
* {@link com.fsck.k9droidtn.K9#gesturesEnabled()}}.
*/
public MyGestureDetector() {
super();
}
/**
* Create a new {@link android.view.GestureDetector.OnGestureListener}.
* @param gesturesEnabled Setting to <code>true</code> will enable gesture detection,
* regardless of the system-wide gesture setting.
*/
public MyGestureDetector(final boolean gesturesEnabled) {
super();
this.gesturesEnabled = gesturesEnabled;
}
private static final float SWIPE_MAX_OFF_PATH_DIP = 250f;
private static final float SWIPE_THRESHOLD_VELOCITY_DIP = 325f;
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
// Do fling-detection if gestures are force-enabled or we have system-wide gestures enabled.
if (gesturesEnabled || K9.gesturesEnabled()) {
// Calculate the minimum distance required for this to count as a swipe.
// Convert the constant dips to pixels.
final float mGestureScale = getResources().getDisplayMetrics().density;
final int minVelocity = (int)(SWIPE_THRESHOLD_VELOCITY_DIP * mGestureScale + 0.5f);
final int maxOffPath = (int)(SWIPE_MAX_OFF_PATH_DIP * mGestureScale + 0.5f);
// Calculate how much was actually swiped.
final float deltaX = e2.getX() - e1.getX();
final float deltaY = e2.getY() - e1.getY();
// Calculate the minimum distance required for this to be considered a swipe.
final int minDistance = (int)Math.abs(deltaY * 4);
if(K9.DEBUG) {
final boolean movedAcross = (Math.abs(deltaX) > Math.abs(deltaY * 4));
final boolean steadyHand = (Math.abs(deltaX / deltaY) > 2);
Log.d(K9.LOG_TAG, String.format("Old swipe algorithm: movedAcross=%s steadyHand=%s result=%s", movedAcross, steadyHand, movedAcross && steadyHand));
Log.d(K9.LOG_TAG, String.format("New swipe algorithm: deltaX=%.2f deltaY=%.2f minDistance=%d velocity=%.2f (min=%d)", deltaX, deltaY, minDistance, velocityX, minVelocity));
}
try {
if (Math.abs(deltaY) > maxOffPath) {
if(K9.DEBUG)
Log.d(K9.LOG_TAG, "New swipe algorithm: Swipe too far off horizontal path.");
return false;
}
if(Math.abs(velocityX) < minVelocity) {
if(K9.DEBUG)
Log.d(K9.LOG_TAG, "New swipe algorithm: Swipe too slow.");
return false;
}
// right to left swipe
if (deltaX < (minDistance * -1)) {
onSwipeRightToLeft(e1, e2);
if(K9.DEBUG)
Log.d(K9.LOG_TAG, "New swipe algorithm: Right to Left swipe OK.");
} else if (deltaX > minDistance) {
onSwipeLeftToRight(e1, e2);
if(K9.DEBUG)
Log.d(K9.LOG_TAG, "New swipe algorithm: Left to Right swipe OK.");
} else {
if(K9.DEBUG)
Log.d(K9.LOG_TAG, "New swipe algorithm: Swipe did not meet minimum distance requirements.");
return false;
}
} catch (Exception e) {
// nothing
}
}
return false;
}
}
public int getThemeBackgroundColor() {
TypedArray array = getTheme().obtainStyledAttributes(new int[] {
android.R.attr.colorBackground,
});
int backgroundColor = array.getColor(0, 0xFF00FF);
array.recycle();
return backgroundColor;
}
}