创建 Toast 时出错 [英] Error when creating Toast

问题描述

我的代码是

Context c = getApplicationContext();

CharSequence c1 = "Invalid Data Entered";

Toast t= Toast.makeText(c, c1, Toast.LENGTH_SHORT);

t.show();

它显示 NULL POINTER EXCEPTION AT Toast.makeText() 行

有什么帮助..?谢谢..

Any help..? thanks..

推荐答案

这实际上是因为我是从不同的类而不是活动中调用它的..这就是原因.. IV 无法在活动中创建 Toast哪个没有运行..

It was actually because i was calling it from a different class and not an activity.. that was the reason.. IV can't create Toast in an Activity which is not running..

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