package com.example.iodemo;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

import android.R.color;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Toast;

@SuppressLint("ShowToast")
public class MainActivity extends Activity {
  private Button btnSave,btnRead;
  private EditText etText,etName;
  private String path, name;
  private RadioButton  rbRed,rbYellow,rbBlue,rbGreen;
  private int colors=Color.BLUE;
   
   /**
    * IOÁ÷¼¸ºõ³É¶Ô³öÏÖinput   output
    */
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		init();
	}
	
	private void init(){
		etName=(EditText) findViewById(R.id.editText1);
		
		btnSave=(Button) findViewById(R.id.btnSave);
		btnRead=(Button) findViewById(R.id.btnRead);
		etText=(EditText) findViewById(R.id.etText);
MyListener  listener=new MyListener();
		
		btnSave.setOnClickListener(listener);
		btnRead.setOnClickListener(listener);
		
				
		rbRed=(RadioButton) findViewById(R.id.rbRed);
		rbYellow=(RadioButton) findViewById(R.id.rbYellow);
		rbBlue=(RadioButton) findViewById(R.id.rbBlue);
		rbGreen=(RadioButton) findViewById(R.id.rbGreen);
		rbListener rblistener=new rbListener();
		rbRed.setOnClickListener(rblistener);
		rbYellow.setOnClickListener(rblistener);
		rbBlue.setOnClickListener(rblistener);
		rbGreen.setOnClickListener(rblistener);
	}
	class rbListener implements OnClickListener{

		public void onClick(View arg0) {
			// TODO Auto-generated method stub
			switch (arg0.getId()) {
			case R.id.rbRed:
				colors=Color.RED;
				break;

			case R.id.rbYellow:
				colors=Color.YELLOW;
				break;
			case R.id.rbBlue:
	               colors=Color.BLUE;
				break;
			case R.id.rbGreen:
	          colors=Color.GREEN;
				break;
			}
		}
		
	}

		
	
	class MyListener implements OnClickListener{

		public void onClick(View arg0) {
			// TODO Auto-generated method stub
			switch (arg0.getId()) {
			case R.id.btnSave:
				saveData();
				saveColor("col",colors);				
				Toast.makeText(MainActivity.this, "±£´æ³É¹¦£¡", 0).show();
				break;

			case R.id.btnRead:
				String s=readData();
                etText.setText(s);	
                int col=getColor("col");
                etText.setTextColor(col);
             
				break;
			}
		}
		
	}
	
	private void saveColor(String key,int color){
		name=etName.getText().toString();
		SharedPreferences sh=getSharedPreferences(name, MODE_PRIVATE);
		Editor editor=sh.edit();
		editor.putInt(key, color);
		editor.commit();
	}
	
	private int getColor(String key){
		name=etName.getText().toString();
		SharedPreferences sh=getSharedPreferences(name, MODE_PRIVATE);
		int col=sh.getInt(key, color.black);
		if(col==Color.RED)
			rbRed.setChecked(true);
		if(col==Color.YELLOW)
			rbYellow.setChecked(true);
		if(col==Color.BLUE)
			rbBlue.setChecked(true);
		if(col==Color.GREEN)
			rbGreen.setChecked(true);
		return col;
	}
	
	private void saveData(){
		 path=Environment.getExternalStorageDirectory()+"/aa.txt";
		 
		 FileOutputStream fos=null;
		 OutputStreamWriter osw=null;
		 BufferedWriter bw=null;
		 
		 
		 try {
			fos=new FileOutputStream(path);
			osw=new OutputStreamWriter(fos);
			bw=new BufferedWriter(osw);
			
			bw.write(etText.getText().toString());
			bw.flush();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				bw.close();
				osw.close();
				fos.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		 	 
	}
	
	
	private String readData() {
		// path=Environment.getExternalStorageDirectory()+"/aa.txt";
		 
		 String str="";
		 FileInputStream fis=null;
		 InputStreamReader isr=null;
		 BufferedReader br=null;
		 
		 try {
			fis=new FileInputStream(path);
			isr=new InputStreamReader(fis);
			 br=new BufferedReader(isr);
			 str=br.readLine();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				br.close();
				isr.close();
				fis.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		 		 
		 return str;
	}

}