I want to load a google maps activity by clicking a button in the main activity but the map does not load, all that loads is a blank activity with the zoom controls. Below is my code:
MainActivity
package com.maplocator.shareplaces;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void onClick(View view) {
startActivity(new Intent("com.maplocator1.ToMap"));
}
public void Map(final View view) {
Intent intent = new Intent(MainActivity.this,ToMap.class);
startActivity(intent);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
MapActivity
package com.maplocator.shareplaces;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import android.app.Dialog;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.widget.Toast;
public class ToMap extends FragmentActivity {
private static final int GPS_ERRORDIALOG_REQUEST = 9001;
GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (servicesOK()) {
Toast.makeText(this, "Ready to Map", Toast.LENGTH_SHORT).show();
setContentView(R.layout.activity_map );
}
else {
setContentView(R.layout.activity_main);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public boolean servicesOK() {
int isAvailable = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (isAvailable == ConnectionResult.SUCCESS) {
return true;
}
else if (GooglePlayServicesUtil.isUserRecoverableError(isAvailable)) {
Dialog dialog = GooglePlayServicesUtil.getErrorDialog(isAvailable, this, GPS_ERRORDIALOG_REQUEST);
dialog.show();
}
else {
Toast.makeText(this, "Can't connect to Google Play services", Toast.LENGTH_SHORT).show();
}
return false;
}
public static int getGpsErrordialogRequest() {
return GPS_ERRORDIALOG_REQUEST;
}
}
ActivityMain
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="153dp"
android:contentDescription="#string/share_p"
android:src="#drawable/shareplaces" />
<Button
android:id="#+id/button_showmap"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/imageView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="137dp"
android:text="#string/go_to_map"
android:textAppearance="?android:attr/textAppearanceLarge"
android:onClick="onClick"/>
</RelativeLayout>
MapActivity
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.SupportMapFragment" />
Okay the fix to this is actually simple. I was usin an API Key I had made in another application, so to fix this issue all I had to do was go to the Google Apis console and get a key for this new application I was developing, so make sure that you generate a new key for a new application.
Related
I just started playing with android studio and I have come to a dead end. I have created a custom ContentView to draw my game but I want to add a button to turn off music/turn it on. Im wanting to use the activity.xml to make the button is there any way to do that?
Main.java is
import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
public class Game extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(new GamePanel(this));
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_game, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Activity.xml is
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="chaos.myapplication.Game"
tools:showIn="#layout/activity_game">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="music"
android:onClick="playMusic"
android:id="#+id/button"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="71dp" />
</RelativeLayout>
I'm new at this but I already made a small app that worked the same way.
I can't see what I'm doing wrong because the code looks quiet the same as my previous app.
When I run it or debug my app it shows my layout on my emulator so it does load the page that has to be loaded but that's all it does, it doesn't listen to button clicks. I also gives me no errors.
Here's my XML code for fragment_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivity$PlaceholderFragment">
<TextView
android:text="Eventaris"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:textSize="100px"
android:textStyle="bold"
android:id="#+id/lblEventaris"
/>
<LinearLayout
android:layout_width="500px"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:orientation="vertical"
android:id="#+id/login">
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Gebruikersnaam"
android:id="#+id/txtGebruikersnaam"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Wachtwoord"
android:inputType="textPassword"
android:layout_below="#id/txtGebruikersnaam"
android:id="#+id/txtWachtwoord"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Inloggen"
android:id="#+id/btnInloggen"
android:layout_below="#id/txtWachtwoord"/>
</LinearLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:layout_below="#id/login">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="nog geen account?"
android:gravity="center"
android:id="#+id/lblRegistratie"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Registeren"
android:id="#+id/btnRegistreren"
android:layout_below="#id/lblRegistratie"/>
</RelativeLayout>
</RelativeLayout>
Here's my fragmennt activity MainFragment.Java
package com.example.arno.eventaris;
import android.app.Activity;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import java.sql.SQLException;
/**
* Created by Arno on 28/04/2015.
*/
public class MainFragment extends Fragment {
private OnMainFragmentInteractionListener mListener;
private View view;
public MainFragment()
{
//required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
view=inflater.inflate(R.layout.fragment_main, container, false);
Button btnInloggen = (Button) view.findViewById(R.id.btnInloggen);
btnInloggen.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
inloggen();
} catch (SQLException e) {
e.printStackTrace();
}
}
});
Button btnRegistreren = (Button) view.findViewById(R.id.btnRegistreren);
btnRegistreren.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v){
navigeerRegistratie();
}
});
return view;
}
#Override
public void onAttach(Activity activity)
{
super.onAttach(activity);
try{
mListener = (OnMainFragmentInteractionListener) activity;
}
catch (ClassCastException e)
{
throw new ClassCastException(activity.toString() + "must implement OnFragmentInteractionListener");
}
}
public void inloggen() throws SQLException {
EditText gebr=(EditText) view.findViewById(R.id.txtGebruikersnaam);
EditText wachtw=(EditText) view.findViewById(R.id.txtWachtwoord);
String gebruiker = gebr.getText().toString();
String wachtwoord = wachtw.getText().toString();
mListener.login(gebruiker, wachtwoord);
}
public void navigeerRegistratie()
{
mListener.navigeerRegistratie();
}
#Override
public void onDetach()
{
super.onDetach();
mListener = null;
}
public interface OnMainFragmentInteractionListener {
//Todo: Update argument type and name
public void login(String gebruiker, String wachtwoord) throws SQLException;
public void navigeerRegistratie();
}
}
Here is my Main Activity MainActivity.java
package com.example.arno.eventaris;
import android.app.DialogFragment;
import android.database.Cursor;
import android.graphics.Color;
import android.net.Uri;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
import android.widget.LinearLayout;
import android.widget.Toast;
import com.example.arno.eventaris.Database.DBAdapter;
import java.sql.SQLException;
public class MainActivity extends ActionBarActivity implements MainFragment.OnMainFragmentInteractionListener,RegistratieFragment.OnRegistratieFragmentInteractionListener{
private Cursor gebruikerCursor;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void login(String gebruiker, String wachtwoord) throws SQLException {
DBAdapter db = new DBAdapter(this);
db.open();
gebruikerCursor = db.getGebruiker(gebruiker);
if(gebruikerCursor.moveToFirst()) {
gebruikerCursor.moveToFirst();
String wwControle = gebruikerCursor.getString(gebruikerCursor.getColumnIndex("wachtwoord"));
if (wachtwoord.equals(wwControle)) {
HomeFragment fragment = new HomeFragment();
Bundle bundle = new Bundle();
bundle.putString("gebruikersnaam", gebruiker);
fragment.setArguments(bundle);
getFragmentManager().beginTransaction().replace(R.id.container, fragment).commit();
} else {
DialogFragment errorlogin = new ErrorLogin();
errorlogin.show(getFragmentManager(), "Wachtwoord incorrect!");
}
}
else
{
DialogFragment errorlogin = new ErrorLogin();
errorlogin.show(getFragmentManager(), "Gebruikersnaam incorrect!");
}
db.close();
}
#Override
public void navigeerRegistratie() {
getFragmentManager().beginTransaction().replace(R.id.container, new RegistratieFragment()).commit();
}
#Override
public void registreren(String gebruiker, String voornaam, String naam, String email, String wachtwoord, String herhaalWachtwoord) {
if(wachtwoord.equals(herhaalWachtwoord)) {
DBAdapter db = new DBAdapter(this);
db.open();
long id = db.insertGebruiker(gebruiker, voornaam, naam, email, wachtwoord);
getFragmentManager().beginTransaction().replace(R.id.container, new MainFragment()).commit();
}
else
{
DialogFragment errorregistratie = new ErrorRegistratie();
errorregistratie.show(getFragmentManager(), "Wachtwoorden komen niet overeen!");
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
}
And as last here is my activity_main.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:id="#+id/container"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context=".MainActivity" tools:ignore="MergeRootFrame" />
Thanks in advance!
Fixed it by making a new project with the same code, had to be a problem way deeper than my code.
I am trying to add new Google Maps Activity to a button in my main activity here is the code.
Code for activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="20dp"
android:id="#+id/layout_1"
android:orientation="vertical"
android:nestedScrollingEnabled="false"
android:weightSum="1">
<ImageView
android:id="#+id/test_image"
android:src="#drawable/ic_launcher"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="SITbus"
android:id="#+id/textView"
android:layout_gravity="center_horizontal"
android:textColor="#ffff1b37"
android:textColorHighlight="#ff3a57ff"
android:textSize="#android:dimen/app_icon_size"
android:theme="#android:style/Animation"
android:typeface="monospace"
android:textIsSelectable="false" />
<Button
android:layout_width="120dp"
android:layout_height="35dp"
android:layout_marginTop="10dp"
android:text="#string/button_send1"
android:onClick="sendMessageR"
android:layout_gravity="center_horizontal"
android:background="#ffff2605"
android:visibility="visible" />
</LinearLayout>
MainActivity.java
package com.example.harish.mysampleapplication;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.content.Intent;
import android.view.View;
import android.widget.EditText;
public class MainActivity extends ActionBarActivity {
public final static String EXTRA_MESSAGE = "com.example.harish.mysampleapplication.MESSAGE";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void sendMessageR(View view) {
Intent intent = new Intent(this, MapsRedActivity.class);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
MapsRedActivity.java
package com.example.harish.mysampleapplication;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class MapsRedActivity extends FragmentActivity {
private GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps_red);
setUpMapIfNeeded();
}
#Override
protected void onResume() {
super.onResume();
setUpMapIfNeeded();
}
private void setUpMapIfNeeded() {
if (mMap == null) {
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
if (mMap != null) {
setUpMap();
}
}
}
private void setUpMap() {
mMap.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
}
}
I am able to open my main activity but not able to open the Google Map Activity when I click the button. The program is not showing any errors.
Can anyone tell me where I have done wrong? and can anyone suggest me solution for this problem
After you create intent you have to start new activity with that intent or nothing will happen
public void sendMessageR(View view) {
Intent intent = new Intent(this, MapsRedActivity.class);
startActivity(intent);
}
Starting Another Activity
Please bear with me on this I'm new to android programming. I was trying to show an image on a button click in android but unfortunately my emulator is not showing the required output. Here is my layout.xml file
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/textView1"
android:layout_below="#+id/textView1"
android:layout_marginTop="14dp"
android:text="Button" />
</RelativeLayout>
main_activity.java
package com.example.app1;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Button;
import android.widget.ImageView;
import android.view.View;
import android.view.View.OnClickListener;
public class MainActivity extends Activity {
Button button;
ImageView image;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void addListenerOnButton() {
button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
image.setImageResource(R.drawable.optimus);
}
});
}
}
I have included the image file under /res/drawable-mdpi. When I try running on emulator it does not show image on button click. Is there any problem with the code?
In your onCreate() method write this please :
Button theButton = (Button)findViewById(R.id.button1);
theButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
theButton.setBackgroundResource(R.drawable.optimus);
}
Assuming that you have an ImageView called imageView1,
You have to assign it, before using it.
So change this:
#Override
public void onClick(View arg0)
{
image.setImageResource(R.drawable.optimus);
}
to this
#Override
public void onClick(View arg0)
{
image = (ImageView) findViewById(R.id.imageView1);
image.setImageResource(R.drawable.optimus);
}
You have to write onclick method like this code and also you need to call addListenerOnButton method in the onCreate() method
package com.example.app1;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Button;
import android.widget.ImageView;
import android.view.View;
import android.view.View.OnClickListener;
public class MainActivity extends Activity {
Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void addListenerOnButton() {
button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
button.setBackgroundResource(R.drawable.optimus);
}
});
}
}
Try This:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/background" <!-- you're adding this here -->
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/textView1"
android:layout_below="#+id/textView1"
android:layout_marginTop="14dp"
android:onClick="showImage" <!-- you're adding this here -->
android:text="Button" />
</RelativeLayout>
Then in the .java file...
Package com.example.app1;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Button;
import android.widget.ImageView;
import android.view.View;
import android.view.View.OnClickListener;
public class MainActivity extends Activity {
Button button;
ImageView image;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void showImage(View view) {
RelativeLayout background = (RelativeLayout) findViewById(R.id.background);
background.setBackgroundResource(R.drawable.optimus);
} /* This is a whole new section of code to replace the onClick listener */
}
Since you're already using the XML Layouts, try to use the built in onClick listener whenever possible. You can do this by naming a function in your .java file called yourFunctionName with a single argument of (View view).
Then, in your XML, you need to point to it by adding android:onClick="yourFunctionName" for the view that needs the onClick method.
Lastly, you never had the image you were referring to actually pointing to anything. You simply said that the object "image" now used "R.drawable.optimus" but that Image was never used! So instead, I just pointed to placing it in the background of your RelativeView. If instead you wanted it in a separate image, you'll have to add an ImageView to the XML file and set the background resource for the ImageView the same way.
Best of luck on learning Android!
This is the content of the file: MainActivity.xml
package com.example.camera_test;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.hardware.Camera;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener()
{
#SuppressLint("NewApi") #Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE );
int i = Camera.getNumberOfCameras();
TextView age = (TextView) findViewById(R.id.textView1);
age.setText(i);
startActivityForResult( intent, 0 );
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
It was working good I clicked the button and it opened the camera application on my device !
But as soon as I added this lines:
int i = Camera.getNumberOfCameras();
TextView age = (TextView) findViewById(R.id.textView1);
age.setText(i);
Im getting the error on my device say nned to force close.
I tried also instead age.setText(I); this:
age.setText(Integer.toString(i));
I tried instead of id.textView1 also id.button1 but not working.
This is the content of activity_main.xml file:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="#string/hello_world" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="45dp"
android:layout_marginTop="62dp"
android:text="Activate The Camera" />
</RelativeLayout>
This is the only two files I did changes.
Solution. Now when I click the button I see the camera then take a photo click on Done then I see the image I took on a small window in my device !
This is the MainActivity.Java fileL:
package com.example.camera_test;
import android.os.Build;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.hardware.Camera;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public class MainActivity extends Activity {
private static final int CAMERA_PIC_REQUEST = 1337;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener()
{
#SuppressLint("NewApi") #Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE );
startActivityForResult( intent, CAMERA_PIC_REQUEST );
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_PIC_REQUEST) {
// do something
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ImageView image = (ImageView) findViewById(R.id.imageView1);
image.setImageBitmap(thumbnail);
}
}
}
And added to the activity_main.xml file imageView1 in the bottom:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="#string/hello_world" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="45dp"
android:layout_marginTop="62dp"
android:text="Activate The Camera" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher" />
</RelativeLayout>
Now it's all working ! Thanks.