ANDROID : adding call function when a button clicked

问题

I have added a ListView inside a fragment, when clicking that listview i see single itemview. when i click the button in that single item view a call should go to that particular id in the listview. button is for call , when its clicked and automatic cal should go . my code is down , phone numbers are stored in side parse server. if anyone knows please help

btn = (Button) findViewById(R.id.button56) ;
btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String phno="telephone";

            Intent i=new Intent(Intent.ACTION_DIAL,Uri.parse(phno));
            startActivity(i);
        }
});

xml code

   <Button
            android:id="@+id/button56"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:text="TELE PHONE"

            android:layout_weight="1"
            android:background="#EFEFEF"/>

回答1:

Try using,

Uri.parse("tel:" +number)

and I assume you have added the permission,

.CALL_PHONE

in your manifest.

回答2:

Add to your manifest permission to make calls

<uses-permission android:name="android.permission.CALL_PHONE" />

来源：https://stackoverflow.com/questions/42481317/android-adding-call-function-when-a-button-clicked