android - 如何在 Asynctask 类中使用 intent？

Question

请分享如何在 Asynctask 类的 doinbackground() 或 onpostexecute() 方法中使用 intent。当我尝试使用这些代码时，它显示错误。

Intent intent = new Intent(asynctask.this, home.class);
startActivity(intent);
finish();

private Class<Home> clazz;
        public asynctask(Class<Home> clazz){
            this.clazz = clazz;
        }

异步任务 doInBackground() 方法:

  protected Void doInBackground(Void... arg0) {
        // TODO Auto-generated method stub
        Intent intent = new Intent(this, clazz);
        startActivity(intent);
        finish();
        Toast.makeText(cxt, "welcome", Toast.LENGTH_SHORT).show();
        return null;
    }

Answer 1

尝试这种方式，希望这能帮助您解决问题。

如何异步任务类:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    new MyCustomAsyncTask(this).execute();
 }

MyCustomAsyncTask.java

public class MyCustomAsyncTask extends AsyncTask<Void,Void,Void> {
    private Context context;

    public MyCustomAsyncTask(Context context){
        this.context=context;
    }
    @Override
    protected void onPreExecute() {
        // write show progress Dialog code here
        super.onPreExecute();
    }

    @Override
    protected Void doInBackground(Void... params) {
        // write service code here
        return null;
    }

    @Override
    protected void onPostExecute(Void aVoid) {
        super.onPostExecute(aVoid);
        Toast.makeText(context, "welcome", Toast.LENGTH_SHORT).show();
        Intent intent = new Intent(context, home.class);
        context.startActivity(intent);
        ((Activity)context).finish();
    }
}