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dksk #4

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22 changes: 1 addition & 21 deletions app/src/main/java/com/example/android/friendlychat/MainActivity.java
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Original file line number Diff line number Diff line change
Expand Up @@ -81,15 +81,7 @@ protected void onCreate(Bundle savedInstanceState) {
mFirebaseAuth = FirebaseAuth.getInstance();
mFirebaseStorage = FirebaseStorage.getInstance();

mMessagesDatabaseReference = mFirebaseDatabase.getReference().child("messages");
mChatPhotosStorageReference = mFirebaseStorage.getReference().child("chat_photos");

// Initialize references to views
mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
mMessageListView = (ListView) findViewById(R.id.messageListView);
mPhotoPickerButton = (ImageButton) findViewById(R.id.photoPickerButton);
mMessageEditText = (EditText) findViewById(R.id.messageEditText);
mSendButton = (Button) findViewById(R.id.sendButton);

// Initialize message ListView and its adapter
List<FriendlyMessage> friendlyMessages = new ArrayList<>();
Expand All @@ -111,19 +103,7 @@ public void onClick(View view) {
});

// Enable Send button when there's text to send
mMessageEditText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}

@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
if (charSequence.toString().trim().length() > 0) {
mSendButton.setEnabled(true);
} else {
mSendButton.setEnabled(false);
}
}

@Override
public void afterTextChanged(Editable editable) {
Expand Down Expand Up @@ -300,4 +280,4 @@ private void detachDatabaseReadListener() {
mChildEventListener = null;
}
}
}
}
5 changes: 2 additions & 3 deletions app/src/main/res/drawable-v24/button_selector.xml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="#999999" android:state_enabled="false"/>
<item android:color="@color/colorAccent" android:state_enabled="true"/>
</selector>

</selector>