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A library jar that provides APIs for Applications written for the Google Android Platform.
/*
* Copyright (C) 2013 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.internal.policy.impl;
import android.animation.ArgbEvaluator;
import android.animation.ValueAnimator;
import android.app.ActivityManager;
import android.app.ActivityManagerNative;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.PixelFormat;
import android.graphics.drawable.ColorDrawable;
import android.os.Handler;
import android.os.Message;
import android.os.RemoteException;
import android.os.UserHandle;
import android.provider.Settings;
import android.util.DisplayMetrics;
import android.util.Slog;
import android.util.SparseBooleanArray;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.DecelerateInterpolator;
import android.widget.Button;
import android.widget.FrameLayout;
import com.android.internal.R;
/**
* Helper to manage showing/hiding a confirmation prompt when the navigation bar is hidden
* entering immersive mode.
*/
public class ImmersiveModeConfirmation {
private static final String TAG = "ImmersiveModeConfirmation";
private static final boolean DEBUG = false;
private static final boolean DEBUG_SHOW_EVERY_TIME = false; // super annoying, use with caution
private static final String CONFIRMED = "confirmed";
private final Context mContext;
private final H mHandler;
private final long mShowDelayMs;
private final long mPanicThresholdMs;
private final SparseBooleanArray mUserPanicResets = new SparseBooleanArray();
private boolean mConfirmed;
private ClingWindowView mClingWindow;
private long mPanicTime;
private WindowManager mWindowManager;
private int mCurrentUserId;
public ImmersiveModeConfirmation(Context context) {
mContext = context;
mHandler = new H();
mShowDelayMs = getNavBarExitDuration() * 3;
mPanicThresholdMs = context.getResources()
.getInteger(R.integer.config_immersive_mode_confirmation_panic);
mWindowManager = (WindowManager)
mContext.getSystemService(Context.WINDOW_SERVICE);
}
private long getNavBarExitDuration() {
Animation exit = AnimationUtils.loadAnimation(mContext, R.anim.dock_bottom_exit);
return exit != null ? exit.getDuration() : 0;
}
public void loadSetting(int currentUserId) {
mConfirmed = false;
mCurrentUserId = currentUserId;
if (DEBUG) Slog.d(TAG, String.format("loadSetting() mCurrentUserId=%d resetForPanic=%s",
mCurrentUserId, mUserPanicResets.get(mCurrentUserId, false)));
String value = null;
try {
value = Settings.Secure.getStringForUser(mContext.getContentResolver(),
Settings.Secure.IMMERSIVE_MODE_CONFIRMATIONS,
UserHandle.USER_CURRENT);
mConfirmed = CONFIRMED.equals(value);
if (DEBUG) Slog.d(TAG, "Loaded mConfirmed=" + mConfirmed);
} catch (Throwable t) {
Slog.w(TAG, "Error loading confirmations, value=" + value, t);
}
}
private void saveSetting() {
if (DEBUG) Slog.d(TAG, "saveSetting()");
try {
final String value = mConfirmed ? CONFIRMED : null;
Settings.Secure.putStringForUser(mContext.getContentResolver(),
Settings.Secure.IMMERSIVE_MODE_CONFIRMATIONS,
value,
UserHandle.USER_CURRENT);
if (DEBUG) Slog.d(TAG, "Saved value=" + value);
} catch (Throwable t) {
Slog.w(TAG, "Error saving confirmations, mConfirmed=" + mConfirmed, t);
}
}
public void immersiveModeChanged(String pkg, boolean isImmersiveMode,
boolean userSetupComplete) {
mHandler.removeMessages(H.SHOW);
if (isImmersiveMode) {
final boolean disabled = PolicyControl.disableImmersiveConfirmation(pkg);
if (DEBUG) Slog.d(TAG, String.format("immersiveModeChanged() disabled=%s mConfirmed=%s",
disabled, mConfirmed));
if (!disabled && (DEBUG_SHOW_EVERY_TIME || !mConfirmed) && userSetupComplete) {
mHandler.sendEmptyMessageDelayed(H.SHOW, mShowDelayMs);
}
} else {
mHandler.sendEmptyMessage(H.HIDE);
}
}
public boolean onPowerKeyDown(boolean isScreenOn, long time, boolean inImmersiveMode) {
if (!isScreenOn && (time - mPanicTime < mPanicThresholdMs)) {
// turning the screen back on within the panic threshold
mHandler.sendEmptyMessage(H.PANIC);
return mClingWindow == null;
}
if (isScreenOn && inImmersiveMode) {
// turning the screen off, remember if we were in immersive mode
mPanicTime = time;
} else {
mPanicTime = 0;
}
return false;
}
public void confirmCurrentPrompt() {
if (mClingWindow != null) {
if (DEBUG) Slog.d(TAG, "confirmCurrentPrompt()");
mHandler.post(mConfirm);
}
}
private void handlePanic() {
if (DEBUG) Slog.d(TAG, "handlePanic()");
if (mUserPanicResets.get(mCurrentUserId, false)) return; // already reset for panic
mUserPanicResets.put(mCurrentUserId, true);
mConfirmed = false;
saveSetting();
}
private void handleHide() {
if (mClingWindow != null) {
if (DEBUG) Slog.d(TAG, "Hiding immersive mode confirmation");
mWindowManager.removeView(mClingWindow);
mClingWindow = null;
}
}
public WindowManager.LayoutParams getClingWindowLayoutParams() {
final WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.TYPE_TOAST,
0
| WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED
,
PixelFormat.TRANSLUCENT);
lp.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
lp.setTitle("ImmersiveModeConfirmation");
lp.windowAnimations = com.android.internal.R.style.Animation_RecentApplications;
lp.gravity = Gravity.FILL;
return lp;
}
public FrameLayout.LayoutParams getBubbleLayoutParams() {
return new FrameLayout.LayoutParams(
mContext.getResources().getDimensionPixelSize(
R.dimen.immersive_mode_cling_width),
ViewGroup.LayoutParams.WRAP_CONTENT,
Gravity.CENTER_HORIZONTAL | Gravity.TOP);
}
private class ClingWindowView extends FrameLayout {
private static final int BGCOLOR = 0x80000000;
private static final int OFFSET_DP = 48;
private final Runnable mConfirm;
private final ColorDrawable mColor = new ColorDrawable(0);
private ValueAnimator mColorAnim;
private ViewGroup mClingLayout;
private Runnable mUpdateLayoutRunnable = new Runnable() {
@Override
public void run() {
if (mClingLayout != null && mClingLayout.getParent() != null) {
mClingLayout.setLayoutParams(getBubbleLayoutParams());
}
}
};
private BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_CONFIGURATION_CHANGED)) {
post(mUpdateLayoutRunnable);
}
}
};
public ClingWindowView(Context context, Runnable confirm) {
super(context);
mConfirm = confirm;
setClickable(true);
setBackground(mColor);
}
@Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
DisplayMetrics metrics = new DisplayMetrics();
mWindowManager.getDefaultDisplay().getMetrics(metrics);
float density = metrics.density;
// create the confirmation cling
mClingLayout = (ViewGroup)
View.inflate(getContext(), R.layout.immersive_mode_cling, null);
final Button ok = (Button) mClingLayout.findViewById(R.id.ok);
ok.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mConfirm.run();
}
});
addView(mClingLayout, getBubbleLayoutParams());
if (ActivityManager.isHighEndGfx()) {
final View bubble = mClingLayout.findViewById(R.id.text);
bubble.setAlpha(0f);
bubble.setTranslationY(-OFFSET_DP*density);
bubble.animate()
.alpha(1f)
.translationY(0)
.setDuration(300)
.setInterpolator(new DecelerateInterpolator())
.start();
ok.setAlpha(0f);
ok.setTranslationY(-OFFSET_DP*density);
ok.animate().alpha(1f)
.translationY(0)
.setDuration(300)
.setStartDelay(200)
.setInterpolator(new DecelerateInterpolator())
.start();
mColorAnim = ValueAnimator.ofObject(new ArgbEvaluator(), 0, BGCOLOR);
mColorAnim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
final int c = (Integer) animation.getAnimatedValue();
mColor.setColor(c);
}
});
mColorAnim.setDuration(1000);
mColorAnim.start();
} else {
mColor.setColor(BGCOLOR);
}
mContext.registerReceiver(mReceiver, new IntentFilter(Intent.ACTION_CONFIGURATION_CHANGED));
}
@Override
public void onDetachedFromWindow() {
mContext.unregisterReceiver(mReceiver);
}
@Override
public boolean onTouchEvent(MotionEvent motion) {
return true;
}
}
private void handleShow() {
if (DEBUG) Slog.d(TAG, "Showing immersive mode confirmation");
mClingWindow = new ClingWindowView(mContext, mConfirm);
// we will be hiding the nav bar, so layout as if it's already hidden
mClingWindow.setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
// show the confirmation
WindowManager.LayoutParams lp = getClingWindowLayoutParams();
mWindowManager.addView(mClingWindow, lp);
}
private final Runnable mConfirm = new Runnable() {
@Override
public void run() {
if (DEBUG) Slog.d(TAG, "mConfirm.run()");
if (!mConfirmed) {
mConfirmed = true;
saveSetting();
}
handleHide();
}
};
private final class H extends Handler {
private static final int SHOW = 1;
private static final int HIDE = 2;
private static final int PANIC = 3;
@Override
public void handleMessage(Message msg) {
switch(msg.what) {
case SHOW:
handleShow();
break;
case HIDE:
handleHide();
break;
case PANIC:
handlePanic();
break;
}
}
}
}