FutureTaskは完全な例を使用しています.
3021 ワード
MainActivityは以下の通りです
package cc.cv;
import java.util.concurrent.FutureTask;
import android.os.Bundle;
import android.app.Activity;
/**
* Demo :
* FutureTask
*
* FutureTask Runnable , Thread
*
* :
* 1 Callable CallableImpl, call()
* 2 FutureTask CallableImpl
* 3 FutureTask ,
*
* CallableImpl () .
* futureTask.isDone()
* futureTask.get() , call() .
* FutureTask Thread
*
* :
* 1 http://uule.iteye.com/blog/1539084
* 2 http://lf6627926.iteye.com/blog/1538313
* 3 http://blog.csdn.net/kaiwii/article/details/6773971
*
*/
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
testFatureTask();
}
private void testFatureTask(){
try {
CallableImpl callableImpl=new CallableImpl();
FutureTask<Integer> futureTask=new FutureTask<Integer>(callableImpl);
//
new Thread(futureTask).start();
System.out.println(" ");
//
while(!futureTask.isDone()){
System.out.println(" ");
System.out.println(" ...........");
}
//
System.out.println(" , :"+futureTask.get());
} catch (Exception e) {
}
}
}
CallableImplは以下の通りです.package cc.cv;
import java.util.concurrent.Callable;
public class CallableImpl implements Callable<Integer> {
private final int COUNTER = 9527;
public CallableImpl() {
}
@Override
public Integer call() throws Exception {
try {
System.out.println("... ... :"+ Thread.currentThread().getName());
Thread.sleep(1000 * 5);
System.out.println("... ... :"+ Thread.currentThread().getName());
Thread.sleep(1000 * 7);
System.out.println("... ... :"+ Thread.currentThread().getName());
} catch (Exception e) {
}
return COUNTER;
}
}
main.xmlは以下の通りです<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
</RelativeLayout>