- 安卓 Toast.makeText 第一个参数的问题，总是出错
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Toast.makeText 第一个参数的问题，总是出错
尝试了
getApplicationContext()
this
hots.this就是一个普通的类 ！ 好郁闷啊
public class hots extends UZtop { public void nowsa(){ String showMsg = moduleContext.optString("msg"); Log.d("name", "DDD:收到消息"+showMsg); Toast.makeText(getApplicationContext(), "出错了", Toast.LENGTH_LONG).show(); } }
1 调用nowsa()的时候传入context,
public void nowsa(Context context){
String showMsg = moduleContext.optString("msg");
Log.d("name", "DDD:收到消息"+showMsg);
Toast.makeText(context, "出错了", Toast.LENGTH_LONG).show();
}
2 在自己的Application中创建全局的Context
public class MyApplication extends Application {
private static Context context;
@Override
public void onCreate() {
super.onCreate();
context = this;
}
.......
public static Context getAppContext() {
return context;
}
}
然后 public void nowsa(){
String showMsg = moduleContext.optString("msg");
Log.d("name", "DDD:收到消息"+showMsg);
Toast.makeText(MyApplication.getAppContext(), "出错了", Toast.LENGTH_LONG).show();
}
