String phoneNumber = number.getText().toString(); String smsmessage = message.getText().toString(); if(phoneNumber == null || phoneNumber.length() == 0 || smsmessage == null || smsmessage.length() == 0){ return; } if(checkPermission(Manifest.permission.SEND_SMS)){ SmsManager smsManager = SmsManager.getDefault(); smsManager.sendTextMessage(phoneNumber, null, smsmessage, null, null); Toast.makeText(this, "Message sent", Toast.LENGTH_SHORT).show(); } Question 2: Explain the following code: button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { FragmentManager fm = getSupportFragmentManager(); FragmentTransaction ft = fm.beginTransaction(); XFragment xfragment = new XFragment(); ft.add(R.id.Main_fragment, xfragment); ft.commit(); } }); Question 3: Explain the following code: @NonNull @Override public houseViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.custom_layout, null, false); ViewHolder viewHolder = new ViewHolder(v); return null;
public void OnSend(View v){
String phoneNumber = number.getText().toString();
String smsmessage = message.getText().toString();
if(phoneNumber == null || phoneNumber.length() == 0 || smsmessage == null || smsmessage.length() == 0){
return;
}
if(checkPermission(Manifest.permission.SEND_SMS)){
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(phoneNumber, null, smsmessage, null, null);
Toast.makeText(this, "Message sent", Toast.LENGTH_SHORT).show();
}
Question 2:
Explain the following code:
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
XFragment xfragment = new XFragment();
ft.add(R.id.Main_fragment, xfragment);
ft.commit();
}
});
Question 3:
Explain the following code:
@NonNull
@Override
public houseViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.custom_layout, null, false);
ViewHolder viewHolder = new ViewHolder(v);
return null;
}
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