Java tutorial
/* * Created by Daniel Nadeau * daniel.nadeau01@gmail.com * danielnadeau.blogspot.com * * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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.echo.holographlibrarysample; import android.animation.Animator; import android.animation.ValueAnimator; import android.annotation.TargetApi; import android.content.res.Resources; import android.os.Build; import android.view.animation.*; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.support.v4.app.Fragment; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.SeekBar; import android.widget.Toast; import com.echo.holographlibrary.PieGraph; import com.echo.holographlibrary.PieGraph.OnSliceClickedListener; import com.echo.holographlibrary.PieSlice; public class PieFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { final View v = inflater.inflate(R.layout.fragment_piegraph, container, false); final Resources resources = getResources(); final PieGraph pg = (PieGraph) v.findViewById(R.id.piegraph); final Button animateButton = (Button) v.findViewById(R.id.animatePieButton); PieSlice slice = new PieSlice(); slice.setColor(resources.getColor(R.color.green_light)); slice.setSelectedColor(resources.getColor(R.color.transparent_orange)); slice.setValue(2); slice.setTitle("first"); pg.addSlice(slice); slice = new PieSlice(); slice.setColor(resources.getColor(R.color.orange)); slice.setValue(3); pg.addSlice(slice); slice = new PieSlice(); slice.setColor(resources.getColor(R.color.purple)); slice.setValue(8); pg.addSlice(slice); pg.setOnSliceClickedListener(new OnSliceClickedListener() { @Override public void onClick(int index) { Toast.makeText(getActivity(), "Slice " + index + " clicked", Toast.LENGTH_SHORT).show(); } }); Bitmap b = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher); pg.setBackgroundBitmap(b); SeekBar seekBar = (SeekBar) v.findViewById(R.id.seekBarRatio); seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { pg.setInnerCircleRatio(progress); } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }); seekBar = (SeekBar) v.findViewById(R.id.seekBarPadding); seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { pg.setPadding(progress); } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }); if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) animateButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { for (PieSlice s : pg.getSlices()) s.setGoalValue((float) Math.random() * 10); pg.setDuration(1000);//default if unspecified is 300 ms pg.setInterpolator(new AccelerateDecelerateInterpolator());//default if unspecified is linear; constant speed pg.setAnimationListener(getAnimationListener()); pg.animateToGoalValues();//animation will always overwrite. Pass true to call the onAnimationCancel Listener with onAnimationEnd } }); return v; } @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR1) public Animator.AnimatorListener getAnimationListener() { if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) return new Animator.AnimatorListener() { @Override public void onAnimationStart(Animator animation) { } @Override public void onAnimationEnd(Animator animation) { Log.d("piefrag", "anim end"); } @Override public void onAnimationCancel(Animator animation) {//you might want to call slice.setvalue(slice.getGoalValue) Log.d("piefrag", "anim cancel"); } @Override public void onAnimationRepeat(Animator animation) { } }; else return null; } }