I am trying go from one activity to its sub-activity (i.e, a new page with more buttons), but every time I click the button, the application "Unfortunately stops running".
I believe that the flaw lies in the manifest where I might writing something wrong under the intent-filter section.
Mind taking a look?
public class MainActivity extends ActionBarActivity {
Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
addListenerOnButton2();
}
//First Activity
private void addListenerOnButton() {
// TODO Auto-generated method stub
button = (Button) findViewById(R.id.activity_one);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent IntentOne =
new Intent(arg0.getContext(), ActivityOne.class);
arg0.getContext().startActivity(IntentOne);
}
});
}
//Second Activity, will look into it later. Making it Explicit for now.
public void addListenerOnButton2() {
button = (Button)findViewById(R.id.activity_two);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View argo) {
Intent IntentTwo = new Intent(Intent.ACTION_VIEW, Uri.parse("http://google.ca"));
startActivity(IntentTwo);
}
});
}
}
///////////////////////////////////////////////////////
Here is the Manifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.poop"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.poop.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.poop.ActivityOne"
android:label="#string/app_name" >
<intent-filter>
<action android:name="com.example.poop.ActivityOne" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
I have not added ActivityTwo yet to the manifest.
You can't have Activities that aren't registered in the Manifest. I don't see an ActivityOne registered in your AndroidManifest.xml
Related
I'm trying to change the layout when I clicked on a button but it didn't not work
my button is in activity_main.xml
and I want to switch to new_post.xml
here is my code in Activity main class
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try {
this.getSupportActionBar().hide();
} catch (Exception e) {
}
setContentView(R.layout.activity_main);
Button b1 = (Button) findViewById(R.id.postButton);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i=new Intent(MainActivity.this , new_post.class);
startActivity(i);
}
});
}
my AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.finalprofile">
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".show_more"></activity>
<activity android:name=".new_post" />
<activity android:name=".edit" />
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
what is the problem?
If you just want to change the layout on button click. There is no need to launch Activity again. Just set setContentView(R.layout.new_post) inside onClickListener.
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
setContentView(R.layout.new_post)
}
});
But you have to take only one precaution that you will take care of any clicks or work on views that were in activity_main.xml and are not in new_post.xml
Happy Coding
I have created a simple app.
one screen of my app has following code and I use a Button (id "sendManual") to change the app view to another one.
please look at the end of this code, you can seen the button id "sendManual".
I have setup it to change screen view to App2Activity.java
(I have put the Code of App2Activity java below this code, then you can check it also)
I installed this app on my android phone, But when I click Button(id"sendManual") app suddenly Stopped and says
Unfortunately,XXXXX app has stopped
public class showPermission implements View.OnClickListener {
Dialog dialog;
Activity activity;
public void showDialog(final Activity activity){
dialog = new Dialog(activity);
dialog.setCancelable(false);
this.activity=activity;
dialog.setTitle("XXXXX");
dialog.setContentView(R.layout.permission);
Button Sendcancel = (Button) dialog.findViewById(R.id.sendCancel);
Button SendNow = (Button) dialog.findViewById(R.id.sendNow);
Button sendManual = (Button) dialog.findViewById(R.id.sendManual);
sendManual.setOnClickListener(this);
SendNow.setOnClickListener(this);
Sendcancel.setOnClickListener(this);
dialog.show();
}
#Override
public void onClick(View view) {
int id=view.getId();
if(id==R.id.sendCancel){
dialog.dismiss();
}
else if(id==R.id.sendNow){
sendSMS();
}
else if(id==R.id.sendManual){
Intent intent = new Intent(activity, App2Activity.class);
activity.startActivity(intent);
}
}
Here is the code of App2Activity.java
public class App2Activity extends Activity {
Button button;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main2);
findViewById(R.id.start).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
sendSMS2();
}
});
}
............ etc
Here is manifest file.
<uses-permission android:name="android.permission.SEND_SMS"/>
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
You are not properly set context in Intent.Use this
Intent intent = new Intent(getApplicationContext(), App2Activity.class);
startActivity(intent);
instead of
Intent intent = new Intent(activity, App2Activity.class);
activity.startActivity(intent);
This all is happening because you didn't declare App2Activity in Manifest.xml. That is compulsory to declare all the activities in manifest file.
Replace your manifest.xml with this one:
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".App2Activity"/>
</application>
I am creating android application for sending notification. I have create two Android application. Here I want to send some forms details via notification from first Android application to 2nd android application in Android.
And after that receiving the notification, click on the notification I want to open my second Android application. What should be done to send the push notification to the particular individual user in Android?
Here is my Activity one codes
public class Activity_One extends Activity
{
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main_one);
Button btn =(Button)findViewById(R.id.button1);
btn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setComponent(new ComponentName("com.customer.Activity_One","com.vendor.Activity_B"));
startActivity(intent);
}
});
}
}
Here is AndroidManifest.xml file
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.customer"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="10" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".Activity_One"
android:label="#string/app_name"
android:launchMode="singleTask">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Here is Activity two code
public class Activity_B extends Activity
{
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main_two);
Button bn = (Button)findViewById(R.id.button1Send);
bn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent();
intent.setAction("com.customer.Activity_One");
startActivity(intent);
}
});
}
}
Manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.vendor"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="10" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".Activity_B"
android:label="#string/app_name"
android:launchMode="singleTask">
<intent-filter>
<action
android:name="com.vendor.Activity_B" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
You do not need to use notifications at all. You can just use intents. That is the standard way to accomplish what you want to achieve. See Interacting with Other Apps for details.
From first application you can start a normal notification and from second application initialize a broadcast receiver and read notification
I am programming an app. There is no errors. I can run the app, but when I press the button it says:
Unfortunately the app has stopped.
What can I do?
Here is my activity code:
Button button1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1 =(Button)findViewById(R.id.button1);
button1.setOnClickListener(this);
}
private void button1Click()
{
startActivity (new Intent ("com.example.cp3.tutorial.Class2"));
}
public void onClick(View v) {
switch (v.getId())
{
case R.id.button1:
button1Click();
}
}
and the manifest:
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.cp3.tutorial.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.cp3.tutorial.Class2"
android:label="#string/title_activity_class2" >
</activity>
</application>
</manifest>
Change button1Click() like this:
private void button1Click()
{
startActivity (new Intent (MainActivity.this, Class2.class));
}
startActivity (new Intent ("com.example.cp3.tutorial.Class2"));
here in your code! you refer to a package to be opend. if you want to open an activity on button click use this code:
Intent intent = new Intent(firstActivity.this, secoundActivity.class);
startActivity(intent);
put this on your click listener, instead of firstActivity put your current activity and secoundActivity put your activity name you want to be opened.
Hope this help you.
I want to make the main activity which have some buttons ,how can i jump from activity to another one . Why when i pressed the button he said : Unfortunately , mynameapp has stopped
This work properly :
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
BlackPixel blackPixel;
blackPixel = new BlackPixel(this);
setContentView(blackPixel);
blackPixel.requestFocus();
});
}
Why this don't work ?:
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// BlackPixel blackPixel;
// blackPixel = new BlackPixel(this);
// setContentView(blackPixel);
// blackPixel.requestFocus();
Button buttonSave=(Button)findViewById(R.id.buttonDraw);
buttonSave.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(MainActivity.this,ButtonDraw.class));
}
});
}
Here is the buttonDraw class :
public class ButtonDraw extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
BlackPixel blackPixel;
blackPixel = new BlackPixel(this);
setContentView(blackPixel);
blackPixel.requestFocus();
}
}
AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myfirstapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme"
android:launchMode="singleInstance"
>
<activity
android:name="com.example.myfirstapp.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.buttons.ButtonDraw"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.buttonDraw" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
1- yes you can go to another Activity by
startActivity(new Intent(MainActivity.this,ButtonDraw.class));
2- Yes you can close your Activity with following code after above code:
this.finish();
for the learning about activity use this link and this
You can write the following line in of Androidmanifest.xml:-
android:launchMode="singleInstance"
then you don't need to write finish() every time