Android使用Intent启动活动

Question

In my app I am using Notification . When user clicks on this Notification than starts my application(if it not running) or dialog is showing. In the activity I do checking

    intent = getIntent();
    if (intent.getExtras() != null) {
        mPrice = getIntent().getExtras().getString("price");
        showDialog(mPrice);
    }

Everything work good, except when my activity started via Notification, every time when I exit from app using back button and start app again it shows me dialog. I have tried remove this Extras using getIntent().getExtras().remove("price") but it doesn't work. How to fix this, that dialog shows only one time if clicked on the Notification?

Answer 1

getExtras creates a copy of the extras.

You need to use

getIntent().removeExtra("price");

Answer 2

Check that the getString actually has returned a value, like this:

intent = getIntent();
if (intent.getExtras() != null) {
    mPrice = getIntent().getExtras().getString("price");
    if (mPrice != null) showDialog(mPrice);
}