基于android的颜色选择器.zip

package cn.edu.scnu.pickcolorview; import android.animation.IntEvaluator; import android.animation.ValueAnimator; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.util.DisplayMetrics; import android.view.View; import android.widget.ImageView; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private RecyclerView mCircleColorView; private CircleColorAdapter mCircleAdapter; private List<Integer> mColorList; private List<Boolean> mActiveList; private int mSelected = 0; private ValueAnimator mOpenAnimator, mCloseAnimator; private boolean isOpen = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); colorPicker1(); colorPicker2(); } private void colorPicker1() { // 颜色选择器1 PickColorView pickColorView = findViewById(R.id.pickcolor); pickColorView.addColor(0xff030303); pickColorView.addColor(0xffFF4500); pickColorView.addColor(0xffE0EEE0); pickColorView.addColor(0xffCD1076); pickColorView.addColor(0xffA1A1A1); pickColorView.addColor(0xff9A32CD); pickColorView.invalidate(); } private void colorPicker2() { // 颜色选择器2 mCircleColorView = findViewById(R.id.circleColorList); mColorList = new ArrayList<>(); mActiveList = new ArrayList<>(); initColorsData(); mCircleAdapter = new CircleColorAdapter(this, mColorList, mActiveList); mCircleAdapter.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(View view, int position) { mActiveList.set(mSelected, false); mActiveList.set(position, true); mSelected = position; mCircleAdapter.notifyDataSetChanged(); } }); LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this); linearLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL); mCircleColorView.setLayoutManager(linearLayoutManager); mCircleColorView.setAdapter(mCircleAdapter); // 动画部分 final ImageView control = findViewById(R.id.control); final int width = getScreenWidth() - 200; mOpenAnimator = ValueAnimator.ofInt(1, 100); mOpenAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { private IntEvaluator evaluator = new IntEvaluator(); @Override public void onAnimationUpdate(ValueAnimator valueAnimator) { float fraction = valueAnimator.getAnimatedFraction(); mCircleColorView.getLayoutParams().width = evaluator.evaluate(fraction, 1, width); mCircleColorView.requestLayout(); if (fraction >= 0.95) control.setBackgroundResource(R.drawable.right); } }); mCloseAnimator = ValueAnimator.ofInt(1, 100); mCloseAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { private IntEvaluator evaluator = new IntEvaluator(); @Override public void onAnimationUpdate(ValueAnimator valueAnimator) { float fraction = valueAnimator.getAnimatedFraction(); mCircleColorView.getLayoutParams().width = evaluator.evaluate(fraction, width, 1); mCircleColorView.requestLayout(); if (fraction >= 0.95) control.setBackgroundResource(R.drawable.left); } }); control.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if (isOpen) { // 关闭 isOpen = false; mCloseAnimator.setDuration(1200).start(); } else { // 打开 isOpen = true; mOpenAnimator.setDuration(1200).start(); } mCircleColorView.scrollToPosition(mSelected); } }); } private void initColorsData() { mColorList.add(0xff030303); mColorList.add(0xffFF4500); mColorList.add(0xffE0EEE0); mColorList.add(0xffCD1076); mColorList.add(0xffA1A1A1); mColorList.add(0xff9A32CD); mColorList.add(0xffEEE5DE); mColorList.add(0xffEE82EE); mColorList.add(0xffCD5C5C); mColorList.add(0xffA52A2A); for (int i = 0; i < mColorList.size(); i++) mActiveList.add(false); } private int getScreenWidth() { DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics); return metrics.widthPixels; } }