CommonDialog

package com.wly.home.widget;

import com.wanbu.dascom.R;

import android.app.Dialog;
import android.content.Context;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
/** *      Dialog * @author wangly * */
public class CommonDialog extends Dialog implements android.view.View.OnClickListener {

    private TextView tv_title;
    private TextView tv_info;
    private EditText et_inputInfo;
    private TextView tv_number;
    private TextView tv_cancle;
    private TextView tv_ok;




    private CallBackListener listener;


    public void setListener(CallBackListener listener) {
        this.listener = listener;
    }

    public CommonDialog(Context context) {
        super(context,R.style.commonDialog_style);
        intView();
    }

    private void intView() {
        setContentView(R.layout.common_layout_dialog);
        tv_title = (TextView) findViewById(R.id.tv_title);
        tv_info = (TextView) findViewById(R.id.tv_info);
        et_inputInfo = (EditText) findViewById(R.id.et_inputInfo);
        et_inputInfo.addTextChangedListener(watcher);
        tv_number = (TextView) findViewById(R.id.tv_number);
        tv_cancle = (TextView) findViewById(R.id.tv_cancle);
        tv_ok = (TextView) findViewById(R.id.tv_ok);
        tv_cancle.setOnClickListener(this);
        tv_ok.setOnClickListener(this);
    }
    /** *      * @param text * @param flag   /   */
    public void setTiltle(String text,int flag){
        tv_title.setText(text);
        tv_title.setVisibility(flag);
    }
    /** *   Dialog     * @param text * @param flag   /   */
    public void setInfo(String text,int flag){
        tv_info.setText(text);
        tv_info.setVisibility(flag);
    }

    /** *    "  "      * @param text */
    public void setCancleText(String text){
        tv_cancle.setText(text);
    }
    /** *    "  "      * @param text */
    public void setConfirmText(String text){
        tv_ok.setText(text);
    }
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.tv_cancle:
            if (listener!=null) {
                listener.cancleListener();
            }
            break;
        case R.id.tv_ok:
            if (listener!=null) {
                listener.confirmListener(et_inputInfo.getText().toString().trim());
            }
            break;
        default:
            break;
        }
    }
    /** * EditText      */
    int num = 100;//        
    TextWatcher watcher =new  TextWatcher(){
        private CharSequence temp;
        private int selectionStart;
        private int selectionEnd; 
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count,
                int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before,
                int count) {
            temp = s; 
        }

        @Override
        public void afterTextChanged(Editable s) {
            int number = num - s.length();
            tv_number.setText(s.length()+"/100");
            selectionStart = et_inputInfo.getSelectionStart();
            selectionEnd = et_inputInfo.getSelectionEnd();
            if (temp.length() > num) {
                s.delete(selectionStart - 1, selectionEnd);
                int tempSelection = selectionEnd;
                et_inputInfo.setText(s);
                et_inputInfo.setSelection(tempSelection);//       
            }
        }

    };

    public interface CallBackListener{
        /** *    */
        void cancleListener();
        /** *    *   EditText       */
        void confirmListener(String text);
    }
}

<style name="commonDialog_style" parent="@android:Theme.Dialog">
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowBackground">@drawable/update_dialog_shape</item>

    </style>