79 lines
2.7 KiB
Java
79 lines
2.7 KiB
Java
/*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.revealeffectbasic;
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import com.example.android.common.logger.Log;
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import android.animation.Animator;
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import android.animation.ValueAnimator;
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import android.support.v4.app.Fragment;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewAnimationUtils;
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import android.view.ViewGroup;
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import android.view.animation.AccelerateDecelerateInterpolator;
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/**
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* This sample shows a view that is revealed when a button is clicked.
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*/
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public class RevealEffectBasicFragment extends Fragment {
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private final static String TAG = "RevealEffectBasicFragment";
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setHasOptionsMenu(true);
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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final View rootView = inflater.inflate(R.layout.reveal_effect_basic, container, false);
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View button = rootView.findViewById(R.id.button);
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// Set a listener to reveal the view when clicked.
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button.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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View shape = rootView.findViewById(R.id.circle);
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// Create a reveal {@link Animator} that starts clipping the view from
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// the top left corner until the whole view is covered.
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Animator animator = ViewAnimationUtils.createCircularReveal(
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shape,
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0,
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0,
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0,
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(float) Math.hypot(shape.getWidth(), shape.getHeight()));
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// Set a natural ease-in/ease-out interpolator.
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animator.setInterpolator(new AccelerateDecelerateInterpolator());
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// Finally start the animation
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animator.start();
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Log.d(TAG, "Starting Reveal animation");
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}
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});
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return rootView;
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}
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} |