ContactEditText.java

package com.sogouchat.widget;

import java.util.ArrayList;

import com.sogouchat.R;
import com.sogouchat.bean.TelNode;
import com.sogouchat.ui.CreateActivity;
import com.sogouchat.ui.SlidingActivity;

import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.SpannableStringBuilder;
import android.text.style.ClickableSpan;
import android.text.style.ImageSpan;
import android.util.AttributeSet;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class ContactEditText extends EditText {
	
	private CreateActivity mCreate;
    private String mContent;
    private Paint mPaint;
    private String mKeyWord;
    
	public ContactEditText(Context context) {
		super(context);
		mCreate = (CreateActivity) context;
        mPaint=new Paint();
        mPaint.setTextSize(18);
	}
	public ContactEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
		mCreate = (CreateActivity) context;
        mPaint=new Paint();
        mPaint.setTextSize(18);
    }
	@Override
	protected void onDraw(Canvas canvas) {
		super.onDraw(canvas);
	}
	@Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
	public void insertTel(TelNode tel){

		mCreate.mSelectList.add(tel);
		mKeyWord=getKeyWord();
		updateSelect();
	}
	
	public void removeTel(TelNode tel){

		mCreate.mSelectList.remove(tel);
		mKeyWord=getKeyWord();
		updateSelect();
	}
	
	private void updateSelect(){
		int start=0;
		int end =0;
		String content = getText().toString();
		SpannableStringBuilder sb = new SpannableStringBuilder();
		for(int i=0;i<mCreate.mSelectList.size();i++){
			TelNode telNd = mCreate.mSelectList.get(i);		
			String telStr = "["+telNd.mTel+"]";
			end = start +telStr.length();
			sb.append(telStr);
			
	    	float[] widths = new float[telNd.mName.length()];
	        mPaint.getTextWidths(telNd.mName, widths);
	        float w=0;
	        for(int ii=0;ii < telNd.mName.length();ii++){
	        	w +=widths[ii];
	        }
	        Drawable db = getResources().getDrawable(R.drawable.frame);
	        db.setBounds(0, 0, (int) w+24,
	        		db.getIntrinsicHeight());
			
	        ContactSpan span = new ContactSpan(telNd, db, ImageSpan.ALIGN_BOTTOM);
	        sb.setSpan(span, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);  
	        
	        ClickableSpan click_span = new ClickableSpan() {
                @Override 
                public void onClick(View widget) { 

                    Toast.makeText(ContactEditText.this.getContext(),
                            "Image Clicked " + "xx", 
                            Toast.LENGTH_SHORT).show(); 
                }
	        };
	        sb.setSpan(click_span, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
	        start +=telStr.length();
		}
		sb.append(mKeyWord);
        setText(sb);
        setSelection(getText().length());
	}
	
	public String getKeyWord(){
		String content = getText().toString();
		String[] array=content.split("]") ;
		String keyWord="";
		if (content.length() ==0) return keyWord;
		boolean change;
		int sInx;
		for(String s: array) {
			if(s.charAt(0) !='['){
				content += s.substring(1);
				sInx = s.indexOf('[');
				if (sInx == -1) keyWord +=s.substring(0);
				else keyWord += s.substring(0,sInx);
			}
		}
		return keyWord;
	}
	
	public void moveKey(){
		String content = getText().toString();
		String[] array=content.split("]") ;
		content = "";
		String last="";
		boolean change;
		int sInx;
		for(String s: array) {
			if(s.charAt(0) =='['){
				content +=s+']';
			} else {
				content += s.substring(1);
				sInx = s.indexOf('[');
				if (sInx == -1) last +=s.substring(0);
				else last += s.substring(0,sInx);
			}
		}
		mKeyWord = last;
		
		if (mKeyWord.length()>0&&
				( mKeyWord.charAt(mKeyWord.length()-1) == ';' || 
			      mKeyWord.charAt(mKeyWord.length()-1) == '；' ) ){
			String tel = mKeyWord.substring(0, mKeyWord.length()-1);
			if (tel.length()>0) {
				// add a strange tel
				TelNode telNd = new TelNode();
				telNd.mContactId = 0;
				telNd.mTel = tel;
				telNd.mName = telNd.mTel;
				mCreate.mSelectList.add(telNd);
			}
			mKeyWord = "";
		} else {
			for(int i=0;i<mCreate.mSelectList.size();i++){
				TelNode telNd = mCreate.mSelectList.get(i);
				// validate telnode
				if (content.indexOf(telNd.mTel) == -1 ) {
					//remove it
					mCreate.mSelectList.remove(i);
					continue;
				}
			}
		}
		
		updateSelect();
	}
	
}