I have Two Applications AppOne & AppTwo
App Two has activity as the following:
<activity android:name=".AppTwoActivity">
<intent-filter>
<action android:name="com.myAction.TestAction"></action>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
What I should do to lunch AppTwoActivity from AppOne (Different App)?
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Intent
Intent intent = new Intent();
startActivity(intent);
}
});
Add the below code to the manifest of your App One. Replace the name with your second apps package name.
<queries>
<package android:name="second.app.package.name" />
</queries>
Then launch that activity using the code below. Or you can use #CommonsWare answer too.
Intent intent = new Intent();
intent.setClassName("second.app.package.name", "second.app.package.name.ActivityName");
startActivity(intent);
Use an Intent that will resolve to the other app's activity:
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Intent
Intent intent = new Intent("com.myAction.TestAction");
try {
startActivity(intent);
} catch (Throwable t) {
Log.e("AppOne", "Exception starting AppTwo", t);
// TODO something to let the user know that the other app is not installed or we otherwise cannot start the activity
}
}
});
Related
With my basic knowledge on Android, I'm trying to play with the Google voice APIs and followed the example here and to write an app, which would allow me to call a hardcoded number. Unfortunately i'm getting an error saying < identifier > expected, so i'm unable to check if my app even works. Can someone see what is missing here and also if i'm even going in the right direction with my thinking and code.
Java file:
public class MyVoiceActivity extends Activity {
class Confirm extends VoiceInteractor.ConfirmationRequest {
public Confirm(String ttsPrompt, String visualPrompt) {
VoiceInteractor.Prompt prompt = new VoiceInteractor.Prompt(
new String[] {ttsPrompt}, visualPrompt);
super(prompt, null);
}
#Override public void onConfirmationResult(boolean confirmed, Bundle null) {
if (confirmed) {
call();
}
finish();
}
};
#Override public void onResume() {
if (isVoiceInteractionRoot()) {
call();
}
Intent intent = new Intent(this, MyVoiceActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
finish();
}
private void call () {
try {
final Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:12345678"));
startActivity(callIntent);
} catch (ActivityNotFoundException activityException) {
}
}
}
AndroidManifest file:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.ccvoice.bt.examplevoice">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MyVoiceActivity" >
<intent-filter>
<action android:name="android.intent.action.CALL" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.VOICE" />
</intent-filter>
</activity>
</application>
</manifest>
The < identifier > required error i'm getting is in this line of the code:
public void onConfirmationResult(boolean confirmed, Bundle null) {
Thank you in advance.
null is a reserved word and cannot be used as an identifier (eg. the name of a parameter). Use a different name for your Bundle parameter to that method.
public void onConfirmationResult(boolean confirmed, Bundle bundle) {
I have edit the manifest file as well. and did everything i could do. still my code is crashing. please help me with this error..............................................................................................
Activity 1(MainActivity):
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent act2 = new Intent(view.getContext(),welcomemessage.class);
startActivity(act2);
}
});
Acitivity 2(welcomemessage):
super.onCreate(savedInstanceState);`
setContentView(R.layout.activity_welcomemessage);
TextView text = (TextView) findViewById(R.id.textView);
Button btn = (Button) findViewById(R.id.button4);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent act1 = new Intent(view.getContext(), MainActivity.class);
startActivity(act1);
}
});
manifestfile:
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".welcomemessage"
android:label="#string/app_name">
</activity>
layouts name are: Layout 1(acitivity_main) and
layout 2(activity_welcomemessgae)
All java classes have to be capitalized, welcomemessage is not and in the mainfest it needs an intent filter block as well, if you post the logcat I can help track down any other errors
can you post the error log?
it will be easier to solve the error if we know it.
you can try these steps:
step 1:
clean the project
Project >> clean >> clean projects selected below >> choose your project
step 2:
try this one:
button3.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent=new Intent(MainActivity.this,welcomemessage.class);
startActivity(intent);
}
});
I have an application named as "App" and another application named as "App1", I have a button in "App" when I click that button I want to open "App1", for this I am using Intent but it does not open "App1".Please help
here is my code for button in "App":-
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.app);
init();
}
public void init(){
mTranslucentBtn = (Button) findViewById(R.id.button);
mTranslucentBtn.setAlpha(0.7f);
mTranslucentBtn.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v){//calling an activity using <intent-filter> action name
startNewActivity(MainActivity.this,"com.example.devui1.rewardapp");
}
});
}
public void startNewActivity(Context context, String packageName) {
Intent intent = context.getPackageManager().getLaunchIntentForPackage(packageName);
if (intent == null) {
// Bring user to the market or let them choose an app?
intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("market://details?id=" + packageName));
}
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
In order for getLaunchIntentForPackage() to work, that package needs to have an Activity that is suitable for being launched as an entry point into that app. The documentation includes this:
The current implementation looks first for a main activity in the category CATEGORY_INFO, and next for a main activity in the category CATEGORY_LAUNCHER. Returns null if neither are found.
This suggests you need one of the following on an Activity in your other package:
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.INFO" />
</intent-filter>
Or
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
If that's not something you want, then you could try creating your own custom action string and using that to launch an activity exposing that specific action:
<intent-filter>
<action android:name="your.package.ACTION_NAME" />
</intent-filter>
public void startActivityWithPrivateAction(Context context, String packageName) {
Intent intent = new Intent("your.package.ACTION_NAME");
intent.setPackage(packageName);
List<ResolveInfo> activities = context.getPackageManager().queryIntentActivities(intent, 0);
if (activities.isEmpty() {
// no suitable activity was found; open the market instead.
intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("market://details?id=" + packageName));
}
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
i am currently developing a simple app on android. I have an imageview (Skype Intent) with a setonclicklistener. When someone clicks on this imageview appears the dialog "Complete action using...." . The dialog contains the skype option which is the desired one, but also contains all the apps which i have developed on my computer. When someone hits the imageview i want to has the option to complete the action only with skype application. If is possible to disappear the dialog "Complete action using..." at all and open skype automatically it would be better.
The skype Intent:
final Intent sky = new Intent("android.intent.action.VIEW");
sky.setData(Uri.parse("skype:" + ""));
ImageView imSky = (ImageView) findViewById(R.id.imageView2);
imSky.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(sky);
}
});
Android Manifest.xml with the 2 intent filter which i have,
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="skype" />
</intent-filter>
Thank you in advance...
This code will launch Skype, is that what you want?
Intent intent = getActivity().getPackageManager().getLaunchIntentForPackage("com.skype.raider");
if (intent != null)
{
// start the activity
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
else
{
// bring user to the market
// or let them choose an app?
intent = new Intent(Intent.ACTION_VIEW);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setData(Uri.parse("market://details?id="+"com.skype.raider"));
startActivity(intent);
}
I am doing an Android application. I want to hide the application icon in the emulator and I want to start my application by pressing some numbers, for instance 456#. Is there a way to do this?
To Hide app icon from launcher programatically you can do this
PackageManager packageManager = context.getPackageManager();
ComponentName componentName = new ComponentName(context,
LauncherActivity.class);
packageManager.setComponentEnabledSetting(componentName, PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
To launch app by pressing number
first add folowing permission in mainfest file
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
Then register receiver
<receiver android:name=".LaunchAppViaDialReceiver">
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
</intent-filter>
</receiver>
Then create a receiver class
public class LaunchAppViaDialReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Bundle bundle = intent.getExtras();
if (null == bundle)
return;
String phoneNubmer = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
//here change the number to your desired number
if (phoneNubmer.equals("12345")) {
setResultData(null);
Gaurdian.changeStealthMode(context,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED);
Intent appIntent = new Intent(context, LauncherActivity.class);
appIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(appIntent);
}
}
If you want to hide the app icon it's a good idea to show the icon first and let the user know how to start the app once the icon is gone. First create an activity-alias in the manifest and move your intent filter there. This way you can disable the icon without disabling the activity.
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
</activity>
<activity-alias
android:name=".Launcher"
android:targetActivity=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
Get the component name of the launcher alias using your package name:
private static final ComponentName LAUNCHER_COMPONENT_NAME = new ComponentName(
"your.package.name", "your.package.name.Launcher");
You can check if it's already disabled...
private boolean isLauncherIconVisible() {
int enabledSetting = getPackageManager()
.getComponentEnabledSetting(LAUNCHER_COMPONENT_NAME);
return enabledSetting != PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
}
...and disable it when appropriate after giving the user information:
private void hideLauncherIcon() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Important!");
builder.setMessage("To launch the app again, dial phone number 12345.");
builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
getPackageManager().setComponentEnabledSetting(LAUNCHER_COMPONENT_NAME,
PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
}
});
builder.setIcon(android.R.drawable.ic_dialog_alert);
builder.show();
}
To launch from the dialer create a broadcast receiver:
public class LaunchViaDialReceiver extends BroadcastReceiver {
private static final String LAUNCHER_NUMBER = "12345";
#Override
public void onReceive(Context context, Intent intent) {
String phoneNubmer = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
if (LAUNCHER_NUMBER.equals(phoneNubmer)) {
setResultData(null);
Intent appIntent = new Intent(context, MainActivity.class);
appIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(appIntent);
}
}
}
Add it to the manifest:
<receiver android:name=".LaunchViaDialReceiver" >
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</receiver>
And add the permission to the manifest:
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
The answer to the first part of your question, try this code:
PackageManager pm = getApplicationContext().getPackageManager();
pm.setComponentEnabledSetting(getComponentName(), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
Your application will not be visible, but the user can still find it in the Settings >> Applications >> Manage Application
This answer may also be helpful for you.
Please do not forget to post your answer here, if you have already achieved the functionality(pressing some number & opening our application).
Note that the solution:
PackageManager pm = getApplicationContext().getPackageManager();
pm.setComponentEnabledSetting(getComponentName(), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
will make the app NOT upgradeable from google play as the OS will not find the package after this component disabling and will not able to re-install it, unless the app is not manullay uninstalled (which is not a user friendly behaviour)
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
hideapplication();
}
private void hideapplication() {
// TODO Auto-generated method stub
PackageManager pm = getApplicationContext().getPackageManager();
pm.setComponentEnabledSetting(getComponentName(), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
}
}