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[英]i want to make call on an emergency number by pressing the button in my mobile app with help of ACTION_CALL but i didn't. why?
[英]How to call emergency number without accepting call?
我有一個非常具體的問題。 我的應用程序應實現緊急呼叫電話(911、112等)。 但這必須立即執行,而無需按“呼叫”按鈕。 我試過通過Intent實現此:
Intent intent = new Intent(Intent.ACTION_DIAL,Uri.parse("tel:" + getString(R.string.emd_emergency_number)));
startActivity(intent);
最后,我只能看到在數字部分放置了數字的撥號程序屏幕。 有人知道如何解決這個問題嗎?
如果讓用戶為自己(家,媽媽,妻子等)定義一個緊急電話號碼,而不是像911,112這樣的緊急電話號碼,則可能很有用。 因為可以用以下方式調用其他號碼:
public static final String ACTION_CALL
Activity Action: Perform a call to someone specified by the data.
Input: If nothing, an empty dialer is started; else getData() is URI of a phone number to be dialed or a tel: URI of an explicit phone number.
Output: nothing.
Note: there will be restrictions on which applications can initiate a call; most applications should use the ACTION_DIAL.
Note: this Intent cannot be used to call emergency numbers. Applications can dial emergency numbers using ACTION_DIAL, however.
Constant Value: "android.intent.action.CALL"
http://developer.android.com/reference/android/content/Intent.html#ACTION_CALL
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