本文实例为大家分享了Android实现掷骰子效果的具体代码，供大家参考，具体内容如下

利用handler接受子线程的消息完成骰子点数的不断更替

演示

START:开始游戏

STOP:停止游戏

RECOVER:重置色子到初始状态

代码

package com.example.homeworkten;

import androidx.annotation.NonNull;

import androidx.appcompat.app.AppCompatActivity;

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 AppCompatActivity {

private ImageView imageView1,imageView2,imageView3;

private Button button1,button2,button3;

private ImageView[] imageViews;

private Handler handler;

//子线程

private Thread thread;

//记录每个色子的点数

private int number[];

//色子的总点数

private int count;

//volatile修饰符用来保证其它线程读取的总是该变量的最新的值

public volatile boolean isStop = false;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

number = new int[3];

imageView1 = findViewById(R.id.imageView1);

imageView2 = findViewById(R.id.imageView2);

imageView3 = findViewById(R.id.imageView3);

button1 = findViewById(R.id.button1);

button2 = findViewById(R.id.button2);

button3 = findViewById(R.id.button3);

imageViews = new ImageView[]{imageView1,imageView2,imageView3};

button1.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

//判断线程是否存在

if (thread != null&&isStop == true){

isStop = false;

}

handler = new Handler(){

@Override

public void handleMessage(@NonNull Message msg) {

super.handleMessage(msg);

for(int i = 0;i < 3;i++) {

switch (number[i]) {

case 1:

imageViews[i].setImageResource(R.drawable.t1);

break;

case 2:

imageViews[i].setImageResource(R.drawable.t2);

break;

case 3:

imageViews[i].setImageResource(R.drawable.t3);

break;

case 4:

imageViews[i].setImageResource(R.drawable.t4);

break;

case 5:

imageViews[i].setImageResource(R.drawable.t5);

break;

case 6:

imageViews[i].setImageResource(R.drawable.t6);

break;

}

}

}

};

thread = new Thread(new Runnable() {

@Override

public void run() {

while (!isStop) {

Message message = handler.obtainMessage();

//总点数归零

count = 0;

for (int i = 0; i < 3; i++) {

try {

Thread.sleep(50);

} catch (InterruptedException e) {

e.printStackTrace();

}

//生成随机数

int random = (int) (Math.random() * 6 + 1);

number[i] = random;

count += random;

}

handler.sendMessage(message);

}

}

});

thread.start();

}

});

//停止掷筛子

button2.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

if(isStop == false) {

isStop = true;

try {

//当子线程执行完以后才继续执行主线程

thread.join();

} catch (InterruptedException e) {

e.printStackTrace();

}

//显示掷出的点数

Toast.makeText(MainActivity.this, "你掷的点数为" + count, Toast.LENGTH_SHORT).show();

}else {

Toast.makeText(MainActivity.this, "请点击开始键进行掷色子", Toast.LENGTH_SHORT).show();

}

}

});

//将色子还原到初始状态

button3.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

if(isStop == true) {

for (int i = 0; i < 3; i++) {

imageViews[i].setImageResource(R.drawable.t1);

}

}else {

Toast.makeText(MainActivity.this, "请先停止游戏，再重新开始", Toast.LENGTH_SHORT).show();

}

}

});

}

}

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity">

android:id="@+id/imageView1"

android:layout_width="100dp"

android:layout_height="80dp"

android:layout_marginStart="10dp"

android:layout_marginLeft="10dp"

android:layout_marginTop="40dp"

android:layout_marginEnd="10dp"

android:layout_marginRight="10dp"

app:layout_constraintEnd_toStartOf="@+id/imageView2"

app:layout_constraintHorizontal_bias="0.482"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toTopOf="parent"

app:srcCompat="@drawable/t1" />

android:id="@+id/imageView2"

android:layout_width="100dp"

android:layout_height="80dp"

android:layout_marginStart="10dp"

android:layout_marginLeft="10dp"

android:layout_marginTop="40dp"

android:layout_marginEnd="10dp"

android:layout_marginRight="10dp"

app:layout_constraintEnd_toStartOf="@+id/imageView3"

app:layout_constraintStart_toEndOf="@+id/imageView1"

app:layout_constraintTop_toTopOf="parent"

app:srcCompat="@drawable/t1" />

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginStart="10dp"

android:layout_marginLeft="10dp"

android:layout_marginTop="40dp"

android:layout_marginEnd="10dp"

android:layout_marginRight="10dp"

android:text="start"

app:layout_constraintEnd_toStartOf="@+id/button2"

app:layout_constraintStart_toStartOf="parent"

app:layout_constraintTop_toBottomOf="@+id/imageView1" />

android:id="@+id/button2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginStart="10dp"

android:layout_marginLeft="10dp"

android:layout_marginTop="40dp"

android:layout_marginEnd="10dp"

android:layout_marginRight="10dp"

android:text="stop"

app:layout_constraintEnd_toStartOf="@+id/button3"

app:layout_constraintStart_toEndOf="@+id/button1"

app:layout_constraintTop_toBottomOf="@+id/imageView2" />

android:id="@+id/button3"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginStart="10dp"

android:layout_marginLeft="10dp"

android:layout_marginTop="40dp"

android:layout_marginEnd="10dp"

android:layout_marginRight="10dp"

android:text="recover"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toEndOf="@+id/button2"

app:layout_constraintTop_toBottomOf="@+id/imageView3" />

android:id="@+id/imageView3"

android:layout_width="100dp"

android:layout_height="80dp"

android:layout_marginStart="10dp"

android:layout_marginLeft="10dp"

android:layout_marginTop="40dp"

android:layout_marginEnd="10dp"

android:layout_marginRight="10dp"

app:layout_constraintEnd_toEndOf="parent"

app:layout_constraintStart_toEndOf="@+id/imageView2"

app:layout_constraintTop_toTopOf="parent"

app:srcCompat="@drawable/t1" />

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。