ANDROID APP

94 บทที่ 4 ส่วนการติดต่อกับผู้ใช้งาน (User Interface)
}
public void onClick(View view) {
do_work();
}
});
//example of a computationally intensive action with UI updates
private void do_work() {
Thread thread = new Thread(new Runnable() {
public void run() {
text_string=R.string.start;
background_color = Color.DKGRAY;
mHandler.post(mUpdateResults);
computation(1);
text_string=R.string.first;
background_color = Color.BLUE;
mHandler.post(mUpdateResults);
}
computation(2);
text_string=R.string.second;
background_color = Color.GREEN;
mHandler.post(mUpdateResults);
}
});
thread.start();
}
final static int SIZE=1000; //large enough to take some time
double tmp;
private void computation(int val) {
for(int ii=0; ii