src/com/android/phone/EmergencyActionGroup.java - platform/packages/services/Telephony - Git at Google

 /*
  * Copyright (C) 2015 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License
  */

 package com.android.phone;

 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.annotation.Nullable;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ResolveInfo;
 import android.telephony.TelephonyManager;
 import android.text.Layout;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.TypedValue;
 import android.view.Gravity;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewAnimationUtils;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityManager;
 import android.view.animation.AnimationUtils;
 import android.view.animation.Interpolator;
 import android.widget.Button;
 import android.widget.FrameLayout;
 import android.widget.TextView;

 import java.util.List;

 public class EmergencyActionGroup extends FrameLayout implements View.OnClickListener {

     private static final long HIDE_DELAY = 3000;
     private static final int RIPPLE_DURATION = 600;
     private static final long RIPPLE_PAUSE = 1000;

     private final Interpolator mFastOutLinearInInterpolator;

     private ViewGroup mSelectedContainer;
     private TextView mSelectedLabel;
     private View mRippleView;
     private View mLaunchHint;

     private View mLastRevealed;

     private MotionEvent mPendingTouchEvent;

     private boolean mHiding;

     public EmergencyActionGroup(Context context, @Nullable AttributeSet attrs) {
         super(context, attrs);
         mFastOutLinearInInterpolator = AnimationUtils.loadInterpolator(context,
                 android.R.interpolator.fast_out_linear_in);
     }

     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
     }

     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();

         mSelectedContainer = (ViewGroup) findViewById(R.id.selected_container);
         mSelectedContainer.setOnClickListener(this);
         mSelectedLabel = (TextView) findViewById(R.id.selected_label);
         mSelectedLabel.addOnLayoutChangeListener(mLayoutChangeListener);
         mRippleView = findViewById(R.id.ripple_view);
         mLaunchHint = findViewById(R.id.launch_hint);
         mLaunchHint.addOnLayoutChangeListener(mLayoutChangeListener);
     }

     @Override
     protected void onWindowVisibilityChanged(int visibility) {
         super.onWindowVisibilityChanged(visibility);
         if (visibility == View.VISIBLE) {
             setupAssistActions();
         }
     }

     /**
      * Called by the activity before a touch event is dispatched to the view hierarchy.
      */
     public void onPreTouchEvent(MotionEvent event) {
         mPendingTouchEvent = event;
     }

     @Override
     public boolean dispatchTouchEvent(MotionEvent event) {
         boolean handled = super.dispatchTouchEvent(event);
         if (mPendingTouchEvent == event && handled) {
             mPendingTouchEvent = null;
         }
         return handled;
     }

     /**
      * Called by the activity after a touch event is dispatched to the view hierarchy.
      */
     public void onPostTouchEvent(MotionEvent event) {
         // Hide the confirmation button if a touch event was delivered to the activity but not to
         // this view.
         if (mPendingTouchEvent != null) {
             hideTheButton();
         }
         mPendingTouchEvent = null;
     }

     private void setupAssistActions() {
         int[] buttonIds = new int[] {R.id.action1, R.id.action2, R.id.action3};

         List<ResolveInfo> infos;

         if (TelephonyManager.EMERGENCY_ASSISTANCE_ENABLED) {
             infos = EmergencyAssistanceHelper.resolveAssistPackageAndQueryActivities(getContext());
         } else {
             infos = null;
         }

         for (int i = 0; i < 3; i++) {
             Button button = (Button) findViewById(buttonIds[i]);
             boolean visible = false;

             button.setOnClickListener(this);

             if (infos != null && infos.size() > i && infos.get(i) != null) {
                 ResolveInfo info = infos.get(i);
                 ComponentName name = EmergencyAssistanceHelper.getComponentName(info);

                 button.setTag(R.id.tag_intent,
                         new Intent(EmergencyAssistanceHelper.getIntentAction(getContext()))
                                 .setComponent(name));
                 button.setText(info.loadLabel(getContext().getPackageManager()));
                 visible = true;
             }

             button.setVisibility(visible ? View.VISIBLE : View.GONE);
         }
     }

     @Override
     public void onClick(View v) {
         Intent intent = (Intent) v.getTag(R.id.tag_intent);

         switch (v.getId()) {
             case R.id.action1:
             case R.id.action2:
             case R.id.action3:
                 if (AccessibilityManager.getInstance(mContext).isTouchExplorationEnabled()) {
                     getContext().startActivity(intent);
                 } else {
                     revealTheButton(v);
                 }
                 break;
             case R.id.selected_container:
                 if (!mHiding) {
                     getContext().startActivity(intent);
                 }
                 break;
         }
     }

     private void revealTheButton(View v) {
         CharSequence buttonText = ((Button) v).getText();
         mSelectedLabel.setText(buttonText);
         mSelectedLabel.setAutoSizeTextTypeWithDefaults(TextView.AUTO_SIZE_TEXT_TYPE_UNIFORM);

         // In order to trigger OnLayoutChangeListener for reset default minimum font size.
         mSelectedLabel.requestLayout();
         mLaunchHint.requestLayout();

         mSelectedContainer.setVisibility(VISIBLE);
         int centerX = v.getLeft() + v.getWidth() / 2;
         int centerY = v.getTop() + v.getHeight() / 2;
         Animator reveal = ViewAnimationUtils.createCircularReveal(
                 mSelectedContainer,
                 centerX,
                 centerY,
                 0,
                 Math.max(centerX, mSelectedContainer.getWidth() - centerX)
                         + Math.max(centerY, mSelectedContainer.getHeight() - centerY));
         reveal.start();

         animateHintText(mSelectedLabel, v, reveal);
         animateHintText(mLaunchHint, v, reveal);

         mSelectedContainer.setTag(R.id.tag_intent, v.getTag(R.id.tag_intent));
         mLastRevealed = v;
         postDelayed(mHideRunnable, HIDE_DELAY);
         postDelayed(mRippleRunnable, RIPPLE_PAUSE / 2);

         // Transfer focus from the originally clicked button to the expanded button.
         mSelectedContainer.requestFocus();
     }


     private final OnLayoutChangeListener mLayoutChangeListener = new OnLayoutChangeListener() {
         @Override
         public void onLayoutChange(View v, int left, int top, int right, int bottom,
                 int oldLeft,
                 int oldTop, int oldRight, int oldBottom) {
             decreaseAutoSizeMinTextSize(v);
         }
     };

     /**
      * Prevent some localization string will be truncated if there is low resolution screen
      * or font size and display size of setting is largest.
      */
     private void decreaseAutoSizeMinTextSize(View selectedView) {
         if (selectedView != null) {
             if (selectedView instanceof TextView) {
                 TextView textView = (TextView) selectedView;
                 textView.setEllipsize(TextUtils.TruncateAt.END);

                 // The textView layout will be null due to it's property is hiding when
                 // initialization.
                 Layout layout = textView.getLayout();
                 if (layout != null) {
                     if (layout.getEllipsisCount(textView.getMaxLines() - 1) > 0) {
                         textView.setAutoSizeTextTypeUniformWithConfiguration(
                                 8,
                                 textView.getAutoSizeMaxTextSize(),
                                 textView.getAutoSizeStepGranularity(),
                                 TypedValue.COMPLEX_UNIT_SP);
                         textView.setGravity(Gravity.CENTER);
                     }
                 }
             }
         }
     }

     private void animateHintText(View selectedView, View v, Animator reveal) {
         selectedView.setTranslationX(
                 (v.getLeft() + v.getWidth() / 2 - mSelectedContainer.getWidth() / 2) / 5);
         selectedView.animate()
                 .setDuration(reveal.getDuration() / 3)
                 .setStartDelay(reveal.getDuration() / 5)
                 .translationX(0)
                 .setInterpolator(mFastOutLinearInInterpolator)
                 .start();
     }

     private void hideTheButton() {
         if (mHiding || mSelectedContainer.getVisibility() != VISIBLE) {
             return;
         }

         mHiding = true;

         removeCallbacks(mHideRunnable);

         View v = mLastRevealed;
         int centerX = v.getLeft() + v.getWidth() / 2;
         int centerY = v.getTop() + v.getHeight() / 2;
         Animator reveal = ViewAnimationUtils.createCircularReveal(
                 mSelectedContainer,
                 centerX,
                 centerY,
                 Math.max(centerX, mSelectedContainer.getWidth() - centerX)
                         + Math.max(centerY, mSelectedContainer.getHeight() - centerY),
                 0);
         reveal.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationEnd(Animator animation) {
                 mSelectedContainer.setVisibility(INVISIBLE);
                 removeCallbacks(mRippleRunnable);
                 mHiding = false;
             }
         });
         reveal.start();

         // Transfer focus back to the originally clicked button.
         if (mSelectedContainer.isFocused()) {
             v.requestFocus();
         }
     }

     private void startRipple() {
         final View ripple = mRippleView;
         ripple.animate().cancel();
         ripple.setVisibility(VISIBLE);
         Animator reveal = ViewAnimationUtils.createCircularReveal(
                 ripple,
                 ripple.getLeft() + ripple.getWidth() / 2,
                 ripple.getTop() + ripple.getHeight() / 2,
                 0,
                 ripple.getWidth() / 2);
         reveal.setDuration(RIPPLE_DURATION);
         reveal.start();

         ripple.setAlpha(0);
         ripple.animate().alpha(1).setDuration(RIPPLE_DURATION / 2)
                 .withEndAction(new Runnable() {
             @Override
             public void run() {
                 ripple.animate().alpha(0).setDuration(RIPPLE_DURATION / 2)
                         .withEndAction(new Runnable() {
                             @Override
                             public void run() {
                                 ripple.setVisibility(INVISIBLE);
                                 postDelayed(mRippleRunnable, RIPPLE_PAUSE);
                             }
                         }).start();
             }
         }).start();
     }

     private final Runnable mHideRunnable = new Runnable() {
         @Override
         public void run() {
             if (!isAttachedToWindow()) return;
             hideTheButton();
         }
     };

     private final Runnable mRippleRunnable = new Runnable() {
         @Override
         public void run() {
             if (!isAttachedToWindow()) return;
             startRipple();
         }
     };
 }
	/*
	* Copyright (C) 2015 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License
	*/

	package com.android.phone;

	import android.animation.Animator;
	import android.animation.AnimatorListenerAdapter;
	import android.annotation.Nullable;
	import android.content.ComponentName;
	import android.content.Context;
	import android.content.Intent;
	import android.content.pm.ResolveInfo;
	import android.telephony.TelephonyManager;
	import android.text.Layout;
	import android.text.TextUtils;
	import android.util.AttributeSet;
	import android.util.TypedValue;
	import android.view.Gravity;
	import android.view.MotionEvent;
	import android.view.View;
	import android.view.ViewAnimationUtils;
	import android.view.ViewGroup;
	import android.view.accessibility.AccessibilityManager;
	import android.view.animation.AnimationUtils;
	import android.view.animation.Interpolator;
	import android.widget.Button;
	import android.widget.FrameLayout;
	import android.widget.TextView;

	import java.util.List;

	public class EmergencyActionGroup extends FrameLayout implements View.OnClickListener {

	private static final long HIDE_DELAY = 3000;
	private static final int RIPPLE_DURATION = 600;
	private static final long RIPPLE_PAUSE = 1000;

	private final Interpolator mFastOutLinearInInterpolator;

	private ViewGroup mSelectedContainer;
	private TextView mSelectedLabel;
	private View mRippleView;
	private View mLaunchHint;

	private View mLastRevealed;

	private MotionEvent mPendingTouchEvent;

	private boolean mHiding;

	public EmergencyActionGroup(Context context, @Nullable AttributeSet attrs) {
	super(context, attrs);
	mFastOutLinearInInterpolator = AnimationUtils.loadInterpolator(context,
	android.R.interpolator.fast_out_linear_in);
	}

	@Override
	protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
	super.onMeasure(widthMeasureSpec, heightMeasureSpec);
	}

	@Override
	protected void onFinishInflate() {
	super.onFinishInflate();

	mSelectedContainer = (ViewGroup) findViewById(R.id.selected_container);
	mSelectedContainer.setOnClickListener(this);
	mSelectedLabel = (TextView) findViewById(R.id.selected_label);
	mSelectedLabel.addOnLayoutChangeListener(mLayoutChangeListener);
	mRippleView = findViewById(R.id.ripple_view);
	mLaunchHint = findViewById(R.id.launch_hint);
	mLaunchHint.addOnLayoutChangeListener(mLayoutChangeListener);
	}

	@Override
	protected void onWindowVisibilityChanged(int visibility) {
	super.onWindowVisibilityChanged(visibility);
	if (visibility == View.VISIBLE) {
	setupAssistActions();
	}
	}

	/**
	* Called by the activity before a touch event is dispatched to the view hierarchy.
	*/
	public void onPreTouchEvent(MotionEvent event) {
	mPendingTouchEvent = event;
	}

	@Override
	public boolean dispatchTouchEvent(MotionEvent event) {
	boolean handled = super.dispatchTouchEvent(event);
	if (mPendingTouchEvent == event && handled) {
	mPendingTouchEvent = null;
	}
	return handled;
	}

	/**
	* Called by the activity after a touch event is dispatched to the view hierarchy.
	*/
	public void onPostTouchEvent(MotionEvent event) {
	// Hide the confirmation button if a touch event was delivered to the activity but not to
	// this view.
	if (mPendingTouchEvent != null) {
	hideTheButton();
	}
	mPendingTouchEvent = null;
	}

	private void setupAssistActions() {
	int[] buttonIds = new int[] {R.id.action1, R.id.action2, R.id.action3};

	List<ResolveInfo> infos;

	if (TelephonyManager.EMERGENCY_ASSISTANCE_ENABLED) {
	infos = EmergencyAssistanceHelper.resolveAssistPackageAndQueryActivities(getContext());
	} else {
	infos = null;
	}

	for (int i = 0; i < 3; i++) {
	Button button = (Button) findViewById(buttonIds[i]);
	boolean visible = false;

	button.setOnClickListener(this);

	if (infos != null && infos.size() > i && infos.get(i) != null) {
	ResolveInfo info = infos.get(i);
	ComponentName name = EmergencyAssistanceHelper.getComponentName(info);

	button.setTag(R.id.tag_intent,
	new Intent(EmergencyAssistanceHelper.getIntentAction(getContext()))
	.setComponent(name));
	button.setText(info.loadLabel(getContext().getPackageManager()));
	visible = true;
	}

	button.setVisibility(visible ? View.VISIBLE : View.GONE);
	}
	}

	@Override
	public void onClick(View v) {
	Intent intent = (Intent) v.getTag(R.id.tag_intent);

	switch (v.getId()) {
	case R.id.action1:
	case R.id.action2:
	case R.id.action3:
	if (AccessibilityManager.getInstance(mContext).isTouchExplorationEnabled()) {
	getContext().startActivity(intent);
	} else {
	revealTheButton(v);
	}
	break;
	case R.id.selected_container:
	if (!mHiding) {
	getContext().startActivity(intent);
	}
	break;
	}
	}

	private void revealTheButton(View v) {
	CharSequence buttonText = ((Button) v).getText();
	mSelectedLabel.setText(buttonText);
	mSelectedLabel.setAutoSizeTextTypeWithDefaults(TextView.AUTO_SIZE_TEXT_TYPE_UNIFORM);

	// In order to trigger OnLayoutChangeListener for reset default minimum font size.
	mSelectedLabel.requestLayout();
	mLaunchHint.requestLayout();

	mSelectedContainer.setVisibility(VISIBLE);
	int centerX = v.getLeft() + v.getWidth() / 2;
	int centerY = v.getTop() + v.getHeight() / 2;
	Animator reveal = ViewAnimationUtils.createCircularReveal(
	mSelectedContainer,
	centerX,
	centerY,
	0,
	Math.max(centerX, mSelectedContainer.getWidth() - centerX)
	+ Math.max(centerY, mSelectedContainer.getHeight() - centerY));
	reveal.start();

	animateHintText(mSelectedLabel, v, reveal);
	animateHintText(mLaunchHint, v, reveal);

	mSelectedContainer.setTag(R.id.tag_intent, v.getTag(R.id.tag_intent));
	mLastRevealed = v;
	postDelayed(mHideRunnable, HIDE_DELAY);
	postDelayed(mRippleRunnable, RIPPLE_PAUSE / 2);

	// Transfer focus from the originally clicked button to the expanded button.
	mSelectedContainer.requestFocus();
	}


	private final OnLayoutChangeListener mLayoutChangeListener = new OnLayoutChangeListener() {
	@Override
	public void onLayoutChange(View v, int left, int top, int right, int bottom,
	int oldLeft,
	int oldTop, int oldRight, int oldBottom) {
	decreaseAutoSizeMinTextSize(v);
	}
	};

	/**
	* Prevent some localization string will be truncated if there is low resolution screen
	* or font size and display size of setting is largest.
	*/
	private void decreaseAutoSizeMinTextSize(View selectedView) {
	if (selectedView != null) {
	if (selectedView instanceof TextView) {
	TextView textView = (TextView) selectedView;
	textView.setEllipsize(TextUtils.TruncateAt.END);

	// The textView layout will be null due to it's property is hiding when
	// initialization.
	Layout layout = textView.getLayout();
	if (layout != null) {
	if (layout.getEllipsisCount(textView.getMaxLines() - 1) > 0) {
	textView.setAutoSizeTextTypeUniformWithConfiguration(
	8,
	textView.getAutoSizeMaxTextSize(),
	textView.getAutoSizeStepGranularity(),
	TypedValue.COMPLEX_UNIT_SP);
	textView.setGravity(Gravity.CENTER);
	}
	}
	}
	}
	}

	private void animateHintText(View selectedView, View v, Animator reveal) {
	selectedView.setTranslationX(
	(v.getLeft() + v.getWidth() / 2 - mSelectedContainer.getWidth() / 2) / 5);
	selectedView.animate()
	.setDuration(reveal.getDuration() / 3)
	.setStartDelay(reveal.getDuration() / 5)
	.translationX(0)
	.setInterpolator(mFastOutLinearInInterpolator)
	.start();
	}

	private void hideTheButton() {
	if (mHiding \|\| mSelectedContainer.getVisibility() != VISIBLE) {
	return;
	}

	mHiding = true;

	removeCallbacks(mHideRunnable);

	View v = mLastRevealed;
	int centerX = v.getLeft() + v.getWidth() / 2;
	int centerY = v.getTop() + v.getHeight() / 2;
	Animator reveal = ViewAnimationUtils.createCircularReveal(
	mSelectedContainer,
	centerX,
	centerY,
	Math.max(centerX, mSelectedContainer.getWidth() - centerX)
	+ Math.max(centerY, mSelectedContainer.getHeight() - centerY),
	0);
	reveal.addListener(new AnimatorListenerAdapter() {
	@Override
	public void onAnimationEnd(Animator animation) {
	mSelectedContainer.setVisibility(INVISIBLE);
	removeCallbacks(mRippleRunnable);
	mHiding = false;
	}
	});
	reveal.start();

	// Transfer focus back to the originally clicked button.
	if (mSelectedContainer.isFocused()) {
	v.requestFocus();
	}
	}

	private void startRipple() {
	final View ripple = mRippleView;
	ripple.animate().cancel();
	ripple.setVisibility(VISIBLE);
	Animator reveal = ViewAnimationUtils.createCircularReveal(
	ripple,
	ripple.getLeft() + ripple.getWidth() / 2,
	ripple.getTop() + ripple.getHeight() / 2,
	0,
	ripple.getWidth() / 2);
	reveal.setDuration(RIPPLE_DURATION);
	reveal.start();

	ripple.setAlpha(0);
	ripple.animate().alpha(1).setDuration(RIPPLE_DURATION / 2)
	.withEndAction(new Runnable() {
	@Override
	public void run() {
	ripple.animate().alpha(0).setDuration(RIPPLE_DURATION / 2)
	.withEndAction(new Runnable() {
	@Override
	public void run() {
	ripple.setVisibility(INVISIBLE);
	postDelayed(mRippleRunnable, RIPPLE_PAUSE);
	}
	}).start();
	}
	}).start();
	}

	private final Runnable mHideRunnable = new Runnable() {
	@Override
	public void run() {
	if (!isAttachedToWindow()) return;
	hideTheButton();
	}
	};

	private final Runnable mRippleRunnable = new Runnable() {
	@Override
	public void run() {
	if (!isAttachedToWindow()) return;
	startRipple();
	}
	};
	}