Smart Device/Android
Thread - Java의 Thread를 사용
by 언덕너머에
2015. 7. 30.
- activity_main.xml
Thread를 실행시킬 Start 버튼과 실행중인 쓰레드에서 값을 가져올 Get 버튼, 그리고 그 값을 보여줄 TextView
<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:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity"> <Button android:id="@+id/btnStart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center"
android:text="Start"/>
<Button android:id="@+id/btnGet"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center"
android:layout_below="@id/btnStart"
android:text="Get"/>
<TextView android:id="@+id/txtValue"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
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- MainActivity
자바의 표준 쓰레드를 사용해서 구현
package kr.co.devinside.myjavathread;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
int value = 0;
boolean bRunning = false;
Button btnStart = null;
Button btnGet = null;
TextView txtView = null;
Thread thread = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnStart = (Button)findViewById(R.id.btnStart);
btnGet = (Button)findViewById(R.id.btnGet);
txtView = (TextView)findViewById(R.id.txtValue);
btnStart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
thread = new BackgroundThread();
thread.start();
}
});
btnGet.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
txtView.setText(Integer.toString(value));
}
});
}
protected void onResume() {
super.onResume();
bRunning = true;
}
protected void onPause() {
super.onPause();
bRunning = false;
value = 0;
}
class BackgroundThread extends Thread {
public void run() {
while (bRunning) {
try {
Thread.sleep(1000);
value++;
} catch (InterruptedException e) {
Log.e("MyJavaThread", "Exception in thread.", e);
}
}
}
}
}
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