如何从另一个班级调用意图？

Question

请问我如何从另一个活动中调用意图！

public class IwannaStartIntent extends Activity{
private Context context;
.
.
public void startNewAcivity(){
Intent intent = new Intent(context,MainActivity.class);
context.startActivity(intent);
}

Answer 1

我建议使用这样的工厂方法创建一个帮助器类：

>>> list1 = ['1','2','3','4','7','8'] 
>>> list2 = ['1','2','3','4','5','6']
>>> list(set(list2) - set(list1))    
['5', '6']
>>> list(set(list1) - set(list2))    
['8', '7']

，然后在活动中：

          public static final String FIRST_NAME = "first_name";

          public static Intent getNameIntent(Context ctx, String firstName) {
          Intent intent = new Intent(ctx, NameActivity.class);
          intent.putExtra(FIRST_NAME, firstName);
          return intent;
          }