在Android程序休眠功能 [英] Sleep function in android program
问题描述
有一些问题让我的程序睡觉 什么即时试图做的是当btnStart为pressed冷杉随机组图片,以12 ImageButtons 然后,我希望它暂停5秒,然后改变第一的ImageButton到另一张图片
我的code是这样的,现在它暂停马上当按钮是pressed ...
btnStart.setOnClickListener(新View.OnClickListener(){
@覆盖
公共无效的onClick(视图v){
// TODO自动生成方法存根
Collections.shuffle(PIC);
INT时间= 1;
preSS = TRUE;
pic.get(0).setImageDrawable(getResources()getDrawable(R.drawable.memgreen));
pic.get(1).setImageDrawable(getResources()getDrawable(R.drawable.memgreen));
pic.get(2).setImageDrawable(getResources()getDrawable(R.drawable.memred));
pic.get(3).setImageDrawable(getResources()getDrawable(R.drawable.memred));
pic.get(4).setImageDrawable(getResources()getDrawable(R.drawable.memblue));
pic.get(5).setImageDrawable(getResources()getDrawable(R.drawable.memblue));
pic.get(6).setImageDrawable(getResources()getDrawable(R.drawable.memwhite));
pic.get(7).setImageDrawable(getResources()getDrawable(R.drawable.memwhite));
pic.get(8).setImageDrawable(getResources()getDrawable(R.drawable.mempurple));
pic.get(9).setImageDrawable(getResources()getDrawable(R.drawable.mempurple));
pic.get(10).setImageDrawable(getResources()getDrawable(R.drawable.memyellow));
pic.get(11).setImageDrawable(getResources()getDrawable(R.drawable.memyellow));
尝试 {
视频下载(5000);
pic.get(0).setImageDrawable(getResources()getDrawable(R.drawable.coin));
}赶上(InterruptedException异常E){
// TODO自动生成的catch块
e.printStackTrace();
}
}
});
好吧,如果你想在用户界面保持响应你不能阻止与UI线程视频下载
有。
创建一个新的线程,然后睡了吧。睡眠后,为改变UI线程上的观点绘制运行的方法
新主题(新的Runnable(){
@覆盖
公共无效的run(){
尝试 {
视频下载(5000);
}赶上(InterruptedException异常E){
e.printStackTrace();
}
runOnUiThread(新的Runnable(){
@覆盖
公共无效的run(){
pic.get(0).setImageDrawable(getResources()getDrawable(R.drawable.coin));
}
});
}
})。开始();
Having some problem getting my program to sleep What im trying to do is when the btnStart is pressed firs randomly set pictures to 12 ImageButtons Then i want it to pause for 5 secs and then change the first ImageButton to another picture
My code looks like this, right now it pauses straight away when the button is pressed...
btnStart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Collections.shuffle(pic);
int time=1;
press=true;
pic.get(0).setImageDrawable(getResources().getDrawable(R.drawable.memgreen));
pic.get(1).setImageDrawable(getResources().getDrawable(R.drawable.memgreen));
pic.get(2).setImageDrawable(getResources().getDrawable(R.drawable.memred));
pic.get(3).setImageDrawable(getResources().getDrawable(R.drawable.memred));
pic.get(4).setImageDrawable(getResources().getDrawable(R.drawable.memblue));
pic.get(5).setImageDrawable(getResources().getDrawable(R.drawable.memblue));
pic.get(6).setImageDrawable(getResources().getDrawable(R.drawable.memwhite));
pic.get(7).setImageDrawable(getResources().getDrawable(R.drawable.memwhite));
pic.get(8).setImageDrawable(getResources().getDrawable(R.drawable.mempurple));
pic.get(9).setImageDrawable(getResources().getDrawable(R.drawable.mempurple));
pic.get(10).setImageDrawable(getResources().getDrawable(R.drawable.memyellow));
pic.get(11).setImageDrawable(getResources().getDrawable(R.drawable.memyellow));
try {
Thread.sleep(5000);
pic.get(0).setImageDrawable(getResources().getDrawable(R.drawable.coin));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
Well, if you want the UI to remain responsive you can't block the UI thread with Thread.sleep
there.
Create a new thread, then sleep it. After the sleep, run the method for changing the view drawable on the UI thread
new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
runOnUiThread(new Runnable() {
@Override
public void run() {
pic.get(0).setImageDrawable(getResources().getDrawable(R.drawable.coin));
}
});
}
}).start();
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