/*
* 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.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.provider.Settings;
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 = resolveAssistPackageAndQueryActivites();
} 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 = getComponentName(info);
button.setTag(R.id.tag_intent,
new Intent(TelephonyManager.ACTION_EMERGENCY_ASSISTANCE)
.setComponent(name));
button.setText(info.loadLabel(getContext().getPackageManager()));
visible = true;
}
button.setVisibility(visible ? View.VISIBLE : View.GONE);
}
}
private List<ResolveInfo> resolveAssistPackageAndQueryActivites() {
List<ResolveInfo> infos = queryAssistActivities();
if (infos == null || infos.isEmpty()) {
PackageManager packageManager = getContext().getPackageManager();
Intent queryIntent = new Intent(TelephonyManager.ACTION_EMERGENCY_ASSISTANCE);
infos = packageManager.queryIntentActivities(queryIntent, 0);
PackageInfo bestMatch = null;
for (int i = 0; i < infos.size(); i++) {
if (infos.get(i).activityInfo == null) continue;
String packageName = infos.get(i).activityInfo.packageName;
PackageInfo packageInfo;
try {
packageInfo = packageManager.getPackageInfo(packageName, 0);
} catch (PackageManager.NameNotFoundException e) {
continue;
}
// Get earliest installed system app.
if (isSystemApp(packageInfo) && (bestMatch == null ||
bestMatch.firstInstallTime > packageInfo.firstInstallTime)) {
bestMatch = packageInfo;
}
}
if (bestMatch != null) {
Settings.Secure.putString(getContext().getContentResolver(),
Settings.Secure.EMERGENCY_ASSISTANCE_APPLICATION,
bestMatch.packageName);
return queryAssistActivities();
} else {
return null;
}
} else {
return infos;
}
}
private List<ResolveInfo> queryAssistActivities() {
String assistPackage = Settings.Secure.getString(
getContext().getContentResolver(),
Settings.Secure.EMERGENCY_ASSISTANCE_APPLICATION);
List<ResolveInfo> infos = null;
if (!TextUtils.isEmpty(assistPackage)) {
Intent queryIntent = new Intent(TelephonyManager.ACTION_EMERGENCY_ASSISTANCE)
.setPackage(assistPackage);
infos = getContext().getPackageManager().queryIntentActivities(queryIntent, 0);
}
return infos;
}
private boolean isSystemApp(PackageInfo info) {
return info.applicationInfo != null
&& (info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
}
private ComponentName getComponentName(ResolveInfo resolveInfo) {
if (resolveInfo == null || resolveInfo.activityInfo == null) return null;
return new ComponentName(resolveInfo.activityInfo.packageName,
resolveInfo.activityInfo.name);
}
@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();
}
};
}