MainActivity
package com.jing.example.nknu_.p47;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
public class MainActivity extends AppCompatActivity {
ConsumerProducer consumerproducer;
TextView txv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
consumerproducer = new ConsumerProducer();
txv = (TextView)findViewById(R.id.textView);
}
public class ConsumerProducer{
private int value = 0;
private final int LIMIT = 10;
private BlockingQueue<Integer> blockingQueue = new LinkedBlockingQueue<Integer>(LIMIT);
public void produce() throws InterruptedException {
blockingQueue.put(value++);
txv.setText("存入=" + String.valueOf(value) + " 剩餘=" + blockingQueue.size());
}
public void consume() throws InterruptedException{
int value = blockingQueue.take();
txv.setText("取出=" + String.valueOf(value) + " 剩餘=" + blockingQueue.size());
}
}
public void StartProduce(View v) throws InterruptedException {
consumerproducer.produce();
}
public void StartConsume(View v) throws InterruptedException {
consumerproducer.consume();
}
}
content_main_xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.jing.example.nknu_.p47.MainActivity"
tools:showIn="@layout/activity_main">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Produce"
android:id="@+id/button"
android:layout_marginStart="25dp"
android:layout_centerVertical="true"
android:layout_alignParentStart="true"
android:onClick="StartProduce" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Consume"
android:id="@+id/button2"
android:layout_alignTop="@+id/button"
android:layout_alignParentEnd="true"
android:layout_marginEnd="42dp"
android:onClick="StartConsume" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/textView"
android:layout_alignParentTop="true" />
</RelativeLayout>