Andorid 多线程(一)：Thread 基本使用

线程的基本使用

一、extends Thread 

package com.gatsby.crushthread;

import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        new MyThread().start();
    }
}

class MyThread extends Thread {
    int i = 1;
    @Override
    public void run() {
        while (i < 100) {
            Log.d("gatsby", "i->" + (i++));
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
} 

new MyThread().start();

二、Runnable

package com.gatsby.crushthread;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        MyRunnable();
    }

    public void MyRunnable() {

        Runnable runnable = new Runnable() {
            @Override
            public void run() {
                int i = 1;
                while (i < 100) {
                    Log.d("gatsby", "i->" + i++);
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        };
        Thread thread = new Thread(runnable);
        thread.start();
    }
}

三、implents Runnable

package com.gatsby.crushthread;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        new Thread(new MyRunnable()).start();
    }
}


class MyRunnable implements Runnable {
    int i = 1;

    @Override
    public void run() {
        while (i < 100) {
            Log.d("gatsby", "i->" + i++);
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

 new Thread(new MyRunnable()).start();

 Thread thread = new Thread(new MyRunnable());
 thread.start();

四、匿名内部类

package com.gatsby.crushthread;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        new Thread(new Runnable() {
            @Override
            public void run() {
                int i = 1;
                while (i < 100) {
                    Log.d("gatsby", "i->" + i++);
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }).start();
    }
}