I have an EditText box that appears and the hint in it is actually a question that needs to be answered. Once the user enters the value and hits next, how can I make a different EditText box take the originals place. I want to do this so there is a new hint(question) and I can manipulate that input differently than with the first input.
In my example, my first EditText is enter_one and I want it to change to enter_two after the next_button is clicked.
Thank you for your help!
final EditText getInput = (EditText)findViewById(R.id.enter_key_one);
Button clickButton = (Button) findViewById(R.id.next_button);
clickButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String newValue = getInput.getText().toString().trim();
int input = Integer.parseInt(newValue);
System.out.println("Your value is " +input);
}
});
Create two edit text in XML layout, and align both in same position, one over another. Then declare the android:visibility="gone" for edittext enter_two.
Then onClick of next should be:
final EditText getInput = (EditText)findViewById(R.id.enter_key_one);
final EditText getInput_two = (EditText)findViewById(R.id.enter_key_two);
Button clickButton = (Button) findViewById(R.id.next_button);
clickButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String newValue = getInput.getText().toString().trim();
int input = Integer.parseInt(newValue);
System.out.println("Your value is " +input);
getInput_two.setVisibility(View.VISIBLE);
getInput.setVisibility(View.GONE);
}
});
You can just change the hint and clear the EditText :
final EditText getInput = (EditText)findViewById(R.id.enter_key_one);
Button clickButton = (Button) findViewById(R.id.next_button);
clickButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
getInput.setHint(newQuestion);
getInput.setText("");
}
});
Related
I am testing my knowledge of android studio and seem to be running into a problem I am trying to make an app that takes the value of a edittext and puts that value into a textview when you click a button. After that it brings you to a page with a back button on it and when I click that it brings me to the first page. But when I try to click the first button it doesn't work anymore.
Code:
public class TestApp extends AppCompatActivity {
private EditText ET;
private Button Add;
private TextView TV;
public String Array[] = new String[9999999];
private Button GoBack;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test_app);
ET = (EditText) findViewById(R.id.ET);
Add = (Button) findViewById(R.id.Add);
Add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String getC = ET.getText().toString();
setContentView(R.layout.value);
TV = (TextView) findViewById(R.id.TV);
GoBack = (Button) findViewById(R.id.GoBack);
if (getC.length() > 0){
for (int i = 0; i < Array.length; i++){
if (Array[i] == null){
Array[i] = getC;
TV.setText(Reminders[i]);
}
}
}
GoBack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
setContentView(R.layout.activity_calender_for_glasses);
}
});
}
});
}
}
thank you for your help.
If not necessary, don't modify the current content view. If you want multiple screens, you have to create multiple activities or fragments...
Moreover :
at the beginning, you inflate R.layout.activity_test_app
when you click on goBack button (1), you inflate R.layout.activity_calender_for_glasses and it's not the same as the first screen
(1) be careful to coding rules: https://source.android.com/setup/contribute/code-style
I have no clue what I am doing wrong but when I print the text from the edit text (using getText().toString()), in the logcat it is always an empty string. I am wondering if it has to do with that it is being done inside the onClickfunction for the continue button. I'm putting the whole onCreate function because the code inside the onClick function seems to match exactly what countless tutorials have shown.
#Override
protected void onCreate(Bundle savedInstanceState)
{
Button add_test = new Button(this);
Button delete_test = new Button(this);
Button[] barray = new Button[100];
int trans_grey = Color.parseColor("#40000000");
final String[] test_types = new String[] {"Choose...","Terms", "Multiple choice", "Custom"};
final ArrayAdapter<String> type_adapter = new ArrayAdapter<String>(this,R.layout.spinner_item,test_types);
// Preliminary operations and display opening layouts
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
LinearLayout scroll_layout = (LinearLayout)findViewById(R.id.scroll_layout);
LayoutParams scroll_params = new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT);
// Add the add a dynamic button
for (int index = 0; index <= 4; index++)
{
barray[index] = new Button(this);
barray[index].setBackgroundColor(trans_grey);
barray[index].setText("Array buttons");
barray[index].setTextColor(Color.parseColor("#CCffffff"));
scroll_layout.addView(barray[index], scroll_params);
}
add_test.setTextColor(Color.parseColor("#CCffffff"));
add_test.setBackgroundColor(trans_grey);
add_test.setText("Add a Test");
scroll_layout.addView(add_test, scroll_params);
add_test.setOnClickListener(new View.OnClickListener()
{#Override
public void onClick(View v)
{
AlertDialog.Builder add_test_builder = new AlertDialog.Builder(TestActivity.this);
final View add_test_view = getLayoutInflater().inflate(R.layout.add_test_menu, null);
Spinner type_spinner = (Spinner) add_test_view.findViewById(R.id.type);
add_test_builder.setView(add_test_view);
final Button continue_button = (Button) add_test_view.findViewById(R.id.continue_button);
AlertDialog dialog = add_test_builder.create();
dialog.show();
dialog.getWindow().setLayout(950,900);
type_spinner.setAdapter(type_adapter);
continue_button.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
View add_test_view = getLayoutInflater().
inflate(R.layout.add_test_menu, null);
// The view of the test attribute dialog
EditText test_title = (EditText) add_test_view.
findViewById(R.id.testTitle);
// Test title widget to hold title of test
String user_title = test_title.getText().toString();
Log.i(TAG, "onClick: " + user_title);
}
});
return;
}
});
// Add the delete a test button
delete_test.setTextColor(Color.parseColor("#CCffffff"));
delete_test.setBackgroundColor(trans_grey);
delete_test.setText("Delete a Test");
scroll_layout.addView(delete_test, scroll_params);
return;
}
}
Layout:
<EditText
android:id="#+id/testTitle"
android:maxLines="1"
android:lines="1"
android:inputType="textAutoCorrect"
android:layout_width="match_parent"
android:layout_height="35dp"
android:background="#00000000"
android:hint="Test Title"/>
Don't inflate the view yiu are assigning to dialog multiple times as you are creating multiple instances of it you are writing to one view but trying to fetch the data from another....Try doing it like this...
AlertDialog.Builder add_test_builder = new AlertDialog.Builder(TestActivity.this);
final View add_test_view = getLayoutInflater().inflate(R.layout.add_test_menu, null);
final EditText test_title = (EditText) add_test_view. findViewById(R.id.testTitle);
continue_button.setOnClickListener(new View.OnClickListener() {
#Override public void onClick(View v) {
String user_title = test_title.getText().toString();
Log.i(TAG, "onClick: " + user_title); } });
I think you should define EditText before and outside of your onlick method. Or get string after your onlick method.
IMO you may call editText string outside of Click method like above
final EditText test_title;
continue_button.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
View add_test_view = getLayoutInflater().
inflate(R.layout.add_test_menu, null);
// The view of the test attribute dialog
EditText test_title = (EditText) add_test_view.
findViewById(R.id.testTitle);
// Test title widget to hold title of test
}
});
String user_title = test_title.getText().toString();
Log.i(TAG, "onClick: " + user_title);
I'm new to Android development, I am currently trying to see if a value entered is equal to a value. Here I am seeing if the user input equals to 5, they are currently set as strings as to is the text field.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_uk_postage);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
Button home = (Button) findViewById (R.id.btnHome);
Button calculate = (Button) findViewById (R.id.btnCalculate);
home.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(ukPostage.this, MainActivity.class));
}
});
EditText lengthInput = (EditText) findViewById(R.id.editTextLength);
final String lengths = lengthInput.getText().toString();
final TextView amount = (TextView) findViewById (R.id.txtAmount);
calculate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick (View v) {
if (lengths.equals("5")) {
amount.setVisibility(View.VISIBLE);
}
}
});
The text goes to visible if i click the button without the if statement there however won't once I write the if statement.
Thanks in advance.
if (lengths.equals("5")) {
String is immutable and once you reference it you need to reference it again with your edit text to reflect the latest value.
Instead of the above code you need to reference the lengths back with the lengthInput value each time you click the calculate button.
calculate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick (View v) {
lengths = lengthInput.getText().toString();
if (lengths.equals("5")) {
amount.setVisibility(View.VISIBLE);
}
}
});
IMPORTANT: You need to set the lengths as a global variable instead of being a final variable since it can only be initialized once.
I'm having a problem with the parseInt method in Android sdk. So far I have one simple edit text and one button in my program. I now want to save the number in a new Variable in my program on button click, so what are the steps I need to take to do so?
So far my code looks like this:
final Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#override
public void onClick(View v) {
int val = Integer.parseInt(EditText.getText().toString());
}
// Perform action on click
});
As per your code snippiest,
You can initialize **EditText* variable like that
final EditText editText= (EditText) findViewById(R.id.edittext);
final Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
int val = Integer.parseInt(editText.getText().toString());
}
// Perform action on click
}
Try to use above solution, I hope it will work
If you want to save a variable accessible from all your app, you can use the shared preferences.
Example :
// To save your int
final SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences("App", Context.MODE_PRIVATE);
final SharedPreferences.Editor sharedPreferencesEditor = sharedPreferences.edit();
final EditText editText = (EditText) findViewById(R.id.edittext);
final Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int value = Integer.parseInt(editText.getText().toString());
sharedPreferencesEditor.putInt("YourValue", value);
sharedPreferencesEditor.commit();
}
});
// To retreive your int
sharedPreferences.getInt("YourValue", 0);
I have an EditText, and when a button is clicked, I want the text to be displayed on the screen. And the EditText can be used again to add other text and on and on. Thanks!
Something like:
EditText et = (EditText)findviewById(R.id.et1);
TextView display = (TextView)findviewById(R.id.tv1);
plusBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
tv1.setText(tv.getText().toString()+"\n"+et.getText().toString());
//prints the text from edittext and concatinates it to the textview previous text
}
});
Please use below code for that, it will solve your problem.
EditText editText1 = (EditText)findviewById(R.id.editText1);
TextView textView1 = (TextView)findviewById(R.id.textView1);
plusBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
textView1.append("\n"+editText1.getText().toString());
// OR
textView1.setText(textView1.getText().toString()+"\n"+editText1.getText().toString());
}
});
You can add Views to your Layout by using its addView() Method. So you could add a TextView upon each button-click which contains the content of your TextField.