| /* |
| * Copyright 2014 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.example.android.revealeffectbasic; |
| |
| import com.example.android.common.logger.Log; |
| |
| import android.animation.Animator; |
| import android.animation.ValueAnimator; |
| import android.support.v4.app.Fragment; |
| import android.os.Bundle; |
| import android.view.LayoutInflater; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.ViewAnimationUtils; |
| import android.view.ViewGroup; |
| import android.view.animation.AccelerateDecelerateInterpolator; |
| |
| /** |
| * This sample shows a view that is revealed when a button is clicked. |
| */ |
| public class RevealEffectBasicFragment extends Fragment { |
| |
| private final static String TAG = "RevealEffectBasicFragment"; |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setHasOptionsMenu(true); |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| final View rootView = inflater.inflate(R.layout.reveal_effect_basic, container, false); |
| |
| View button = rootView.findViewById(R.id.button); |
| |
| // Set a listener to reveal the view when clicked. |
| button.setOnClickListener(new View.OnClickListener() { |
| @Override |
| public void onClick(View view) { |
| View shape = rootView.findViewById(R.id.circle); |
| |
| // Create a reveal {@link Animator} that starts clipping the view from |
| // the top left corner until the whole view is covered. |
| Animator animator = ViewAnimationUtils.createCircularReveal( |
| shape, |
| 0, |
| 0, |
| 0, |
| (float) Math.hypot(shape.getWidth(), shape.getHeight())); |
| |
| // Set a natural ease-in/ease-out interpolator. |
| animator.setInterpolator(new AccelerateDecelerateInterpolator()); |
| |
| // Finally start the animation |
| animator.start(); |
| |
| Log.d(TAG, "Starting Reveal animation"); |
| } |
| }); |
| |
| return rootView; |
| } |
| |
| } |