I'm trying to display the name inputted by the user on a basic form I created using Explicit intent on a second activity on a TextView but when I click the button the app crashes with the following "Unfortunately, formIntent has stopped" but my code has no errors. I got this to work with a Toast message on new activity but with a TextView. Any help would be appreciated.
Here's my First Activity `public class MainActivity extends AppCompatActivity {
Button submit;
TextView name;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
submit = (Button)findViewById(R.id.btnSubmit);
name = (TextView)findViewById(R.id.editTextname);
submit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//from sending Activity
String userName = name.getText().toString();
String value = "Thank you " + userName + "your request is being processed" ;
Intent sendIntent = new Intent(v.getContext(), Main2Activity.class);
sendIntent.putExtra("userName", value);
//Verify that the intent will resolve to an activity
if (sendIntent.resolveActivity(getPackageManager()) != null)
{
startActivity(sendIntent);
}
}
});
}
}
`
Here's My second Activity
public class Main2Activity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
Bundle data = getIntent().getExtras();
if(data == null){
return;
}
String getName = getIntent().getExtras().getString("userName");
final TextView inputMessage = (TextView)findViewById(R.id.display);
inputMessage.setText(getName);
}
}
Please change this line to your activity name
Intent sendIntent = new Intent(MainActivity.this, Main2Activity.class);
Related
I did onClick at xml level. It was okay for a few times, but this one time causes error. I can't seem to find where the error is from. But it said that startActivity(intent); is where the error is.
public void callNextSignUpScreen2(View view) {
Intent intent = new Intent(getApplicationContext(),SignUp3.class);
startActivity(intent);
}
This is my full code
public class SignUp2 extends AppCompatActivity {
//Variable
ImageView back_icon;
Button next, login;
TextView title_text;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sign_up2);
//Hooks
back_icon = findViewById(R.id.signup_back_btn);
next = findViewById(R.id.signup_next_next_btn);
login = findViewById(R.id.login_btn);
title_text = findViewById(R.id.signup_title_text);
}
public void callNextSignUpScreen2(View view) {
Intent intent = new Intent(getApplicationContext(),SignUp3.class);
startActivity(intent);
}
public void callBackSign2(View view) {
Intent intent = new Intent(getApplicationContext(),SignUp.class);
startActivity(intent);
}
}
I've got 2 activities (well actually 4 but only 2 matter for now), the main activity and the font changing activity. The main activity sends text that the user has typed in to the font changing activity using an intent and startActivityForResult. Within the font changing activity the user can change the font of the text, as expected. What I'm trying to do is after the user has changed the font, send the text and the new font back to the main activity. But I'm not sure how to do this. I'm thinking of using some kind of bundle but I am stuck. If anyone could help me that would be greatly appreciated.
Here's my (relevant) Main Activity code:
public class MainActivity extends AppCompatActivity
{
RelativeLayout move_group;
ImageView view;
String backgroundImageName;
SeekBar seekSize;
TextView user_text;
Button button;
SeekBar tiltChange;
String temp;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
user_text = (TextView) findViewById(R.id.user_text);
static final int REQUEST_FONT = 4;
public void FontChange(View view)
{
Intent fontIntent = new Intent(this, Main4Activity.class);
fontIntent.putExtra("Text", temp);
startActivityForResult(fontIntent, REQUEST_FONT);
}
//There's supposed to be an accompanying onActivityResult method as well
//but i haven't figured that part out yet
}
Here's my (relevant) Font Activity code:
public class Main4Activity extends AppCompatActivity
{
TextView user_font_text;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main4);
user_font_text = (TextView) findViewById(R.id.user_font_text);
}
public void boldText(View view)
{
Typeface custom_font = getResources().getFont(R.font.avenir_next_bold);
user_font_text.setTypeface(custom_font);
}
public void italicText(View view)
{
Typeface custom_font = getResources().getFont(R.font.avenir_next_italic);
user_font_text.setTypeface(custom_font);
}
public void regularText(View view)
{
Typeface custom_font = getResources().getFont(R.font.avenir_next_regular);
user_font_text.setTypeface(custom_font);
}
public void thinText(View view)
{
Typeface custom_font = getResources().getFont(R.font.avenir_next_thin);
user_font_text.setTypeface(custom_font);
}
public void OK(View view)
{
//The intent and/or bundle would go here but I don't know what to do
}
}
public void FontChange(View view)
{
temp = user_text.getText().toString();
Intent fontIntent = new Intent(this, Main4Activity.class);
fontIntent.putExtra("Text", temp);
startActivityForResult(fontIntent, REQUEST_FONT);
}
this will fetch your string from textview to fontActivity.
Now in your FontActivity
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main4);
Intent intent = getIntent();
String text = intent.getStringExtra("temp");
user_font_text = (TextView) findViewById(R.id.user_font_text);
user_font_text.setText(text);
}
public void OK(View view)
{
Intent returnIntent = new Intent();
returnIntent.putExtra("result",
user_font_text.getText().toString());
returnIntent.putExtra("font",
ypur_font_type);
setResult(Activity.RESULT_OK, returnIntent);
}
Remaining part of setting font style can be done using SpannableStringBuilder. here you can check SpannableStringBuilder . Hope this helps.
I am sending the data between activities, through PutExtra. It's working perfectly.
The problem is when you click the back button, give an error and for the activity.
I've already tried to implement the StarActivityForResult option, and I can not get it to work.
Images below. Code "12345" is used as an example, and is sent to the three screens as PutExtra
Code:
Activity1:
public class MainActivity extends AppCompatActivity {
private Button btnIrAct2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnIrAct2 = (Button) findViewById(R.id.btnIrAct2);
btnIrAct2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent2 = new Intent(MainActivity.this, Activity2.class);
intent2.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent2.putExtra("id_empresa", "12345");
startActivity(intent2);
}
});
}
}
Activity 2:
public class Activity2 extends AppCompatActivity {
private Button btnIrAct3;
private String mId_Empresa = null;
static final int SERVICO_DETALHES_REQUEST = 1;
private TextView tvResultado;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_2);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
/* Recebe id de outra tela*/
mId_Empresa = getIntent().getExtras().getString("id_empresa");
tvResultado = (TextView) findViewById(R.id.tvAct2);
tvResultado.setText(mId_Empresa);
btnIrAct3 = (Button) findViewById(R.id.btnIrAct3);
btnIrAct3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent3 = new Intent(Activity2.this, Activity3.class);
intent3.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent3.putExtra("id_empresa", "12345");
startActivityForResult(intent3, SERVICO_DETALHES_REQUEST );
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == SERVICO_DETALHES_REQUEST && resultCode == RESULT_OK) {
String resultBack = data.getStringExtra("id_empresa");
}
}
}
Activity 3:
public class Activity3 extends AppCompatActivity {
private String idEmpresa = null;
private TextView resultado;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_3);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
/* Recebe id de outra tela*/
idEmpresa = getIntent().getExtras().getString("id_empresa");
resultado = (TextView) findViewById(R.id.tvAct3);
resultado.setText(idEmpresa);
}
#Override
public void finish()
{
Intent data = new Intent();
data.putExtra("id_empresa", "12345");
setResult(Activity.RESULT_OK, data);
super.finish();
}
}
I need to resolve the conflict. Because on my return I need to send a data like PutExtra, at the same time that this Activity already has a piece of code that already receives a PutExtra.
If I understand the issue correctly, you should to use fragments instead of activities and save all the data in main activity but if you want to continue with this way try onBackPressed() method to choose what to do when the user pressed back button.
Insert this code in Activity 2
if(getIntent().getExtras().getString("id_empresa") != null)
{
mId_Empresa = getIntent().getExtras().getString("id_empresa");
}
Checking the data before setting it to the textview is must. If the string you are putting to textview is null, it will generate an error which will lead to crash.
Hope it helps!
I´m new to app development and I´m trying to figure out how to send an user input like name, to a list view located in a diferent activity.
Thanks in advance.
MainActivity:
public class MainActivity extends AppCompatActivity {
private Button mbuttonNext;
private EditText meditTextName;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
meditTextName = (EditText) findViewById(R.id.editTextName);
mbuttonNext = (Button) findViewById(R.id.buttonNext);
mbuttonNext.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, ClientList.class);
startActivity(intent);
}
});
}
}
ListViewActivity:
public class ClientList extends AppCompatActivity {
private ListView listaClientes;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_client_list);
listaClientes = (ListView) findViewById((R.id.listView));
}
}
In the main activity you need to need intent.putExtra
mbuttonNext.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, ClientList.class);
intent.putExtra("VariableName", "Fred");
startActivity(intent);
}
});
Than in listView
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_client_list);
listaClientes = (ListView) findViewById((R.id.listView));
Bundle bundle = getIntent().getExtras(); //get the intent and data passed
//next check that bundle is not null
if (bundle != null) {
String name = bundle.getString("VariableName");
//try loging out the value
Log.i("Name", name);
}
}
I believe this will solve your problem
When starting the new activity:
Intent newIntent = new Intent(MainActivity.this, ClientList.class);
newIntent.putExtra("com.example.myapp.NAME", "someName");
startActivity(newIntent);
Then in ClientList:
Intent intent = getIntent();
String name = intent.getStringExtra("com.example.myapp.NAME");
Can then use name variable as source data for the ListView.
Usually you should create an Adapter that will "set" the items in the ListView. In order for you to send/transfer the user input to another activity you can use "putExtra()". You can do that the following way:
intent.putExtra("str1",item)
where str1 is the key to get your item in the activity you started. To do that you should do:
Bundle b = getIntent().getExtras();
Obj a = (TypeCast) b.get("str1");
After that you should read how to create an Adapter and set it in a ListView in order for your ListView to show the item.
i am new to android, i have created two activities where main activity consist one button to go to secondActivity in second activity where the user inputs name and the data is taken back to main activity using intents.The problem i am facing is i want to display the data in listview
MainActivity.java
public class MainActivity extends Activity {
Button addcontact;
ListView listview;
//TextView name;
ArrayAdapter<String> listAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listview = (ListView) findViewById(R.id.listView1);
TextView name = (TextView) findViewById(R.id.txtname);
addcontact = (Button) findViewById(R.id.addbtn);
addcontact.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(MainActivity.this, SecondActivity.class);
startActivityForResult(i, 1);
savedata();
}
});
}
private void savedata() {
Intent intent = getIntent();
String fName = intent.getStringExtra("fname");
List<String> ListElements = new ArrayList<String>(Arrays.asList(fName));
ArrayAdapter<String> adapter = new ArrayAdapter<String> (MainActivity.this,android.R.layout.simple_list_item_1, ListElements);
listview.setAdapter(adapter);
}
}
SecondActivity.java
public class SecondActivity extends Activity {
EditText edname;
Button addbtn;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
edname =(EditText) findViewById(R.id.edname);
addbtn = (Button) findViewById(R.id.savebtn);
addbtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(SecondActivity.this, MainActivity.class);
intent.putExtra("fname", edname.getText().toString());
startActivity(intent);
}
});
}
}
I would suggest you don't recreate your first Activity. Instead of that approach, use startActivityForResult().
In short - Starting another activity doesn't have to be one-way. You can also start another activity and receive a result back. To receive a result, call startActivityForResult() (instead of startActivity()).
For more chek this link.