判断context是否属于某个activity

作者: 因为我的心 | 来源:发表于2021-04-06 18:47 被阅读0次

当需要根据是那个activity的context来进行不同的逻辑处理时，可以将context强转成activity来判断：

1、Java类型判断

try {
    Activity activity = (Activity)context;
} catch (Exception e) {
    e.printStackTrace();
    //说明是ApplicationContext
}
 
if((activity  instanceof HomeActivity){
    //TODO 
}

2、Kotlin类型判断：

try {
    val activity = context as Activity
    if (activity is SplashActivity) {
           return
       }
   } catch (e: Exception) {
       e.printStackTrace();
       //说明是ApplicationContext
   }

//简写
open class BaseActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        if (this is MainActivity) {
            Log.d("LUO", "===MainActivity===")
        } else if (this is TwoActivity) {
            Log.d("LUO", "===TwoActivity===")
        }
    }
}