我正在使用asyncTask来显示对话框,然后在几分钟后再启动一个新的活动.
不幸的是,任务完成前开始的活动？
package com.android.grad;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.widget.Toast;
public class LoginTask extends AsyncTask<Void,Void,Boolean> {
private Activity activity;
private ProgressDialog pd;
public LoginTask(Activity activity) {
this.activity = activity;
}
@Override
protected void onPreExecute() {
pd = ProgressDialog.show(activity,"Signing in","Please wait while we are signing you in..");
}
@Override
protected Boolean doInBackground(Void... arg0) {
try {
Thread.sleep(10000000);
} catch (InterruptedException e) {
}
pd.dismiss();
return true;
}
@Override
protected void onPostExecute(Boolean result) {
Toast.makeText(activity,Boolean.toString(result),Toast.LENGTH_LONG).show();
}
}
我从按钮点击监听器执行任务：S
private OnClickListener loginOnClick = new OnClickListener() {
public void onClick(View v) {
new LoginTask(LoginActivity.this).execute();
startActivity(new Intent(LoginActivity.this,BuiltInCamera.class));
}
};
有没有办法从我的subClassAsyncTask启动活动.
解决方法
是的,您可以从AsyncTask的子类开始活动.见下文：
@Override
protected void onPostExecute(Boolean result) {
Toast.makeText(activity,Toast.LENGTH_LONG).show();
activity.startActivity(new Intent(activity,BuiltInCamera.class));
}
进行此更改后,请确保从OnClickListener中删除startActivity
