package cn.sinata.xldutils.view;
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import android.annotation.TargetApi;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Color;
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import android.os.Build;
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import android.util.AttributeSet;
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import android.util.TypedValue;
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import android.view.Gravity;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ImageButton;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import cn.sinata.xldutils.R;
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/**
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* 加减view，购物车等处使用，简单的组合按钮而已
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*/
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public class AddSubView extends LinearLayout implements View.OnClickListener{
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private ImageButton addView;//加
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private ImageButton subView;//减
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private TextView numView;//显示数字view
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private int step = 1;//步长，默认为1
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private int min = 0;//最小值，默认为1
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private int max = 99;//最大值，默认为99
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private int number = 0;
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private float textSize = 14;
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private int textColor = Color.parseColor("#333333");
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public AddSubView(Context context) {
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super(context);
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init(context,null);
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}
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public AddSubView(Context context, AttributeSet attrs) {
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super(context, attrs);
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init(context,attrs);
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}
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@TargetApi(Build.VERSION_CODES.HONEYCOMB)
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public AddSubView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init(context,attrs);
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}
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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public AddSubView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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init(context,attrs);
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}
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private void init(Context context, AttributeSet attrs){
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addView = new ImageButton(context);
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subView = new ImageButton(context);
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numView = new TextView(context);
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int itemWidth = 30;
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int itemHeight = 30;
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int subBg = 0;
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int addBg = 0;
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int subSrc = 0;
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int addSrc = 0;
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if(attrs != null) {
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AddSubView);
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itemWidth= a.getDimensionPixelSize(R.styleable.AddSubView_itemWidth, itemWidth);
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itemHeight= a.getDimensionPixelSize(R.styleable.AddSubView_itemHeight, itemHeight);
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max= a.getInt(R.styleable.AddSubView_max, max);
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min= a.getInt(R.styleable.AddSubView_min, min);
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subBg = a.getResourceId(R.styleable.AddSubView_subBackground, 0);
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subSrc = a.getResourceId(R.styleable.AddSubView_subSrc, 0);
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addBg = a.getResourceId(R.styleable.AddSubView_addBackground, 0);
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addSrc = a.getResourceId(R.styleable.AddSubView_addSrc, 0);
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a.recycle();
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}else {
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float density = context.getResources().getDisplayMetrics().density;
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itemWidth = (int) (itemWidth*density);
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itemHeight = (int) (itemHeight*density);
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}
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LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(itemWidth,itemHeight);
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subView.setLayoutParams(params);
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if (subSrc >0){
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subView.setImageResource(subSrc);
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}
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if (subBg>0){
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subView.setBackgroundResource(subBg);
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}
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if (addBg>0){
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addView.setBackgroundResource(addBg);
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}
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if (addSrc >0){
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addView.setImageResource(addSrc);
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}
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addView.setLayoutParams(params);
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numView.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,itemHeight));
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numView.setMinWidth(itemWidth);
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numView.setText(String.valueOf(min));
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if (min<0){
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min = 0;
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}
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number = min;
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numView.setTextSize(TypedValue.COMPLEX_UNIT_SP,textSize);
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numView.setTextColor(textColor);
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numView.setGravity(Gravity.CENTER);
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addView(subView);
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addView(numView);
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addView(addView);
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if (number <= 0){
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subView.setEnabled(false);
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}else {
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subView.setEnabled(true);
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}
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subView.setOnClickListener(this);
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addView.setOnClickListener(this);
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}
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public void setMaxNumber(int max){
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this.max = max;
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if (number>=max){
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number = max;
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addView.setEnabled(false);
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}else {
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addView.setEnabled(true);
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}
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}
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public void setMinNumber(int min){
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this.min = min;
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if (number<=min){
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number = min;
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subView.setEnabled(false);
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}else {
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subView.setEnabled(true);
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}
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}
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public void setNumber(int number){
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this.number = number;
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numView.setText(String.valueOf(number));
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if (number>=max){
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this.number = max;
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addView.setEnabled(false);
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}else {
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addView.setEnabled(true);
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}
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if (number<=min){
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this.number = min;
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subView.setEnabled(false);
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}else {
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subView.setEnabled(true);
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}
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}
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public int getNumber(){
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return number;
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}
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public void setOnNumberChangeListener(OnNumberChangeListener listener){
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this.listener = listener;
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}
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public interface OnNumberChangeListener{
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void onNumberChange(Type type, int num);
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}
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public enum Type{
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ADD,SUB
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}
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private OnNumberChangeListener listener;
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@Override
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public void onClick(View v) {
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if (v == subView){
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if (number>min) {
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number -= step;
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if (listener != null) {
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listener.onNumberChange(Type.SUB,number);
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}
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}
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}else if (v == addView){
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if (number<max) {
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number += step;
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if (listener != null) {
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listener.onNumberChange(Type.ADD,number);
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}
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}
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}
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if (number<=min){
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number = min;
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subView.setEnabled(false);
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}else {
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subView.setEnabled(true);
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}
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if (number>=max){
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number = max;
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addView.setEnabled(false);
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}else {
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addView.setEnabled(true);
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}
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numView.setText(String.valueOf(number));
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}
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}
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