package com.zms.dicedemo; 
 
import java.util.Random; 
 
import android.app.Activity; 
import android.graphics.drawable.Drawable; 
import android.os.Bundle; 
import android.os.Handler; 
import android.os.Message; 
import android.view.View; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.Toast; 
 
public class MainActivity extends Activity { 
 
 private ImageView imageDice; 
 private Button btnGo; 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_main); 
 
  initialLayout(); 
 } 
 
 private void initialLayout() { 
  imageDice = (ImageView) findViewById(R.id.imageDice); 
 
  btnGo = (Button) findViewById(R.id.btnGo); 
  btnGo.setOnClickListener(new MyOnClickListener()); 
 
 } 
 
 class MyOnClickListener implements View.OnClickListener { 
 
  @Override 
  public void onClick(View v) { 
   switch (v.getId()) { 
   case R.id.btnGo: 
    imageDice.setImageDrawable(getResources().getDrawable( 
      R.drawable.anim_dice)); 
    new Thread(new DiceThread()).start(); 
    break; 
 
   default: 
    break; 
   } 
 
  } 
 } 
 
 public class DiceThread implements Runnable { 
 
  @Override 
  public void run() { 
   try { 
    Thread.sleep(2000); 
   } catch (InterruptedException e) { 
    e.printStackTrace(); 
   } 
 
   Message messageDice = new Message(); 
   messageDice.what = 1; 
   diceHandler.sendMessage(messageDice); 
 
  } 
 
 } 
 
 private void resetDiceImage() { 
  int randomInt = 1 + new Random().nextInt(6); // 1~6 
  Toast.makeText(MainActivity.this, getChineseByNumber(randomInt), 
    Toast.LENGTH_SHORT).show(); 
  imageDice.setImageDrawable(getResources().getDrawable( 
    getResources().getIdentifier("dice_" + randomInt, "drawable", 
      getPackageName()))); 
 } 
 
 private String getChineseByNumber(int number) { 
  switch (number) { 
  case 1: 
   return "一点小"; 
 
  case 2: 
   return "二点小"; 
 
  case 3: 
   return "三点小"; 
 
  case 4: 
   return "四点大"; 
 
  case 5: 
   return "五点大"; 
 
  case 6: 
   return "六点大"; 
 
  default: 
   return ""; 
  } 
 } 
 
 final Handler diceHandler = new Handler() { 
 
  public void handleMessage(android.os.Message msg) { 
   switch (msg.what) { 
   case 1: 
    resetDiceImage(); 
    break; 
 
   default: 
    break; 
   } 
  } 
 
 }; 
}