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package com.example.widget;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.util.AttributeSet;

import android.view.Gravity;

import android.view.View;

import android.widget.ImageView;

import android.widget.ImageView.ScaleType;

import android.widget.LinearLayout;

public class BottomIndicator extends LinearLayout {

public BottomIndicator(Context context, AttributeSet attrs, int defStyle) {

super(context, attrs, defStyle);

// TODO Auto-generated constructor stub

}

public BottomIndicator(Context context) {

super(context);

// TODO Auto-generated constructor stub

}

public BottomIndicator(Context context, AttributeSet attrs) {

super(context, attrs);

// TODO Auto-generated constructor stub

setOrientation(LinearLayout.HORIZONTAL);

}

public int[] selectItem;

public int[] noSelectItem;

public interface OnSelectItem{

public void setect(int pos);

}

public OnSelectItem onSelectItem;

public void setdrawId( int draw[],int noSelect[]){

selectItem=draw;

noSelectItem=noSelect;

setWeightSum(draw.length);

LayoutParams layoutParams=new LayoutParams(0,LayoutParams.WRAP_CONTENT);

layoutParams.gravity=Gravity.CENTER;

layoutParams.weight=1;

for (int i = 0; i < draw.length; i++) {

final int pos=i;

ImageView imageView=new ImageView(getContext());

Bitmap bitmap = BitmapFactory.decodeResource(getContext().getResources(),draw[i]);

int height =80;

Bitmap mBitmap = scalyByHigh(bitmap, height);

imageView.setScaleType(ScaleType.CENTER_INSIDE);

imageView.setImageBitmap(mBitmap);

imageView.setLayoutParams(layoutParams);

imageView.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

selectBottom(pos);

}

});

addView(imageView);

}

}

public Bitmap scalyByHigh(Bitmap bitmap,int high){//根据高来缩放

int mHeight = bitmap.getHeight();

int mWith=bitmap.getWidth();

int realWith=mWith*high/mHeight;

Bitmap realBitmap = Bitmap.createScaledBitmap(bitmap,realWith,high,true);

return realBitmap;

}

public void setImSelect(OnSelectItem onItemSelect){

this.onSelectItem=onItemSelect;

}

public void selectBottom(int pos){//选择哪个指标

for (int i = 0; i <getChildCount(); i++) {

ImageView child = (ImageView)getChildAt(i);

if(i==pos){

child.setImageResource(selectItem[i]);

child.setClickable(false);

if(onSelectItem!=null){

onSelectItem.setect(i);

}

}

else {

child.setImageResource(noSelectItem[i]);

child.setClickable(true);

}

}

}

}