无法将null传递给execute(); android 4.0中AsyncTask的方法 [英] unable to pass null to execute(); method of AsyncTask in android 4.0
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问题描述
我正在尝试将null值传递给execute(); android 4.0中的AsyncTask方法显示错误 该方法execute(Integer [])对于该类型是模棱两可的",但相同的代码在android 2.2上也可以正常工作.代码为:
i am trying to pass null value to execute(); method of AsyncTask in android 4.0 it show error "The method execute(Integer[]) is ambiguous for the type" but same code is work fine with android 2.2 Code is :
public class AllianceAnalysisDemoActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
new AsynPageLoader().execute(null);
}
public class AsynPageLoader extends AsyncTask<Integer, Integer, Bitmap> {
@Override
protected void onPreExecute() {
// progressBar.setVisibility(VISIBLE);
}
@Override
protected Bitmap doInBackground(Integer... params) {
return null;
}
@Override
protected void onPostExecute(Bitmap result) {
if (result != null && result.getHeight() > 0
&& result.getWidth() > 0) {
}else {
}
}
}
}
请帮助我如何传递null值.execute(null); android 4.0中的方法
please help me how to pass null value .execute(null); method in android 4.0
推荐答案
这应该有效:
new AsynPageLoader().execute((Integer) null);
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