我是
Android开发的新手,我想将一个按钮与动画相关联.我在runOnUiThread()和getApplication()附近收到错误.当我把它作为一个活动添加时它很好,但是当在MainFragment中声明时它会给出错误.但是,当我修复错误时,它会创建一个方法并返回false.
public class MainFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_main,container,false);
ImageButton btnFacebook = (ImageButton)rootView.findViewById(R.id.facebook2);
final Animation alpha = AnimationUtils.loadAnimation(getActivity(),R.anim.anim_alpha);
btnFacebook.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
arg0.startAnimation(alpha);
Thread thread = new Thread()
{
@Override
public void run()
{
try
{
Thread.sleep(1000);
}catch(InterruptedException e){
}
runOnUiThread(new Runnable() {
@Override
public void run() {
startActivity(new Intent(getApplication(),FacebookActivity.class));
}
});
}
};
thread.start();
}});
return rootView;
}}
在XML文件中,我只有facebook图像按钮.当我点击它时,它必须触发动画,然后onclick事件必须发生,但我不知道为什么会出现这个错误：
方法runOnUiThread(new Runnable(){})未定义类型new Thread(){}
并且靠近getapplication()方法
对于new Runnable(){}类型,未定义getApplication()方法
