I would like to make a button on the front page of the app that jumps to a specific DialogPreference.
The purpose of the button is to be a shortcut to that preference, bypassing having to browse the list of all preferences, since I'm going to be resetting that preference a lot.
If it's not possible to make this button, can someone give me the source for DialogPreference (I don't have enough space to download the source tree).
You can use android.provider.Settings.* intent to do this... for example, if you want to open the GPS settings page from your app, use the following code:
Intent myIntent = new Intent( android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS );
startActivity(myIntent);
Related
Do you know is there a programmatic way to create a web shortcut on the phone user's home screen?
What I want to do is:
When the phone user clicks a button in our Android application, the application will then place a website shortcut onto the phone user's home screen.
First you'll need to add a permission to your manifest.xml
<uses-permission
android:name="com.android.launcher.permission.INSTALL_SHORTCUT">
</uses-permission>
You'll need to build an intent to view the webpage. Something like...
Intent i = new Intent();
i.setAction(Intent.ACTION_VIEW);
i.setData(Uri.parse("http://www.blablaba.com"));
You can test this by creating a little test app and doing startActivity(i); This should open the browser. Once you verified that the above intent is correct you should move on to the next step.
Now you'll need to actually install the shortcut.
Intent installer = new Intent();
installer.putExtra("android.intent.extra.shortcut.INTENT", i);
installer.putExtra("android.intent.extra.shortcut.NAME", "THE NAME OF SHORTCUT TO BE SHOWN");
installer.putExtra("android.intent.extra.shortcut.ICON_RESOURCE", I THINK this is a bitmap); //can also be ignored too
installer.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
sendBroadcast(installer)
;
It's also possible some home screens don't accept this, but most do. So enjoy.
EDIT:
Icon can be set to the shortcut using:
installer.putExtra("android.intent.extra.shortcut.ICON_RESOURCE", Intent.ShortcutIconResource.fromContext(mContext, R.drawable.icon));
As an addition to the correct answer by #Mike-dg and #Gagan, instead of using
putExtra("android.intent.extra.shortcut.ICON_RESOURCE", Intent.ShortcutIconResource.fromContext(mContext, R.drawable.icon))
which requires a ShortcutIconResource, you can use
putExtra("android.intent.extra.shortcut.ICON", Bitmap))
which lets you use any bitmap as the icon. This makes it easy to use a the favicon of the shortcut's website as the icon.
You can't place UI elements on the phone's home screen through an .apk. For the web shortcut - you can create a widget that opens the browser (with the specified URL) upon click.
I want to show only wi-fi settings fragment from settings. I have achieved this by using following code:
Intent i = new Intent(Settings.ACTION_SETTINGS);
i.putExtra(":android:show_fragment", "com.android.settings.wifi.WifiSettings");
i.putExtra(":android:no_headers", true);
startActivity(i);
Now I want to show only date & time fragment from settings so I changed my code to:
Intent i = new Intent(Settings.ACTION_SETTINGS);
i.putExtra(":android:show_fragment","com.android.settings.ACTION_DATE_SETTINGS");
i.putExtra(":android:no_headers", true);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
unfortunately it's not working.How can I display only specific Settings fragment from android inbuilt Settings app like this
I want to show only wi-fi settings fragment from settings. I have achieved this by using following code:
I would recommend that you use ACTION_WIFI_SETTINGS and get rid of the undocumented extras.
Now I want to show only date & time fragment from settings so I changed my code... unfortunately it's not working.
The right solution is to use ACTION_DATE_SETTINGS and get rid of the undocumented extras. Beyond that, com.android.settings.ACTION_DATE_SETTINGS is not the name of a fragment.
Evidently no_headers was silently removed from Android L and above... so we are out of luck. Re-write just select pieces of com.android.settings and block the standard settings through MDM - then pray for SYSTEM signature on your app.
I have an app that spends a lot of time generating bitmaps for use as wallpaper. When the user has selected a bitmap and applied it, I would like to go to the main launcher screen so it can be seen "for real".
I could just exit the app when the selection is made, but I would like to maintain state at least for a short time so that if the user wants to go right back in to change cropping or select a different bitmap, things are as they were before.
Andy ideas? Is there an Intent I could use to get back to the main launcher screen? Maybe simulate the "Home" button being pressed?
Thanks!
An intent to go to Home:
Intent homeIntent = new Intent(Intent.ACTION_MAIN);
homeIntent.addCategory(Intent.CATEGORY_HOME);
startActivity(homeIntent);
Do you know is there a programmatic way to create a web shortcut on the phone user's home screen?
What I want to do is:
When the phone user clicks a button in our Android application, the application will then place a website shortcut onto the phone user's home screen.
First you'll need to add a permission to your manifest.xml
<uses-permission
android:name="com.android.launcher.permission.INSTALL_SHORTCUT">
</uses-permission>
You'll need to build an intent to view the webpage. Something like...
Intent i = new Intent();
i.setAction(Intent.ACTION_VIEW);
i.setData(Uri.parse("http://www.blablaba.com"));
You can test this by creating a little test app and doing startActivity(i); This should open the browser. Once you verified that the above intent is correct you should move on to the next step.
Now you'll need to actually install the shortcut.
Intent installer = new Intent();
installer.putExtra("android.intent.extra.shortcut.INTENT", i);
installer.putExtra("android.intent.extra.shortcut.NAME", "THE NAME OF SHORTCUT TO BE SHOWN");
installer.putExtra("android.intent.extra.shortcut.ICON_RESOURCE", I THINK this is a bitmap); //can also be ignored too
installer.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
sendBroadcast(installer)
;
It's also possible some home screens don't accept this, but most do. So enjoy.
EDIT:
Icon can be set to the shortcut using:
installer.putExtra("android.intent.extra.shortcut.ICON_RESOURCE", Intent.ShortcutIconResource.fromContext(mContext, R.drawable.icon));
As an addition to the correct answer by #Mike-dg and #Gagan, instead of using
putExtra("android.intent.extra.shortcut.ICON_RESOURCE", Intent.ShortcutIconResource.fromContext(mContext, R.drawable.icon))
which requires a ShortcutIconResource, you can use
putExtra("android.intent.extra.shortcut.ICON", Bitmap))
which lets you use any bitmap as the icon. This makes it easy to use a the favicon of the shortcut's website as the icon.
You can't place UI elements on the phone's home screen through an .apk. For the web shortcut - you can create a widget that opens the browser (with the specified URL) upon click.
How to open Settings>About page programmaticlly in Android.
You can open it by simply using an Intent
Intent aboutPhone = new Intent(Settings.ACTION_DEVICE_INFO_SETTINGS);
startActivity(aboutPhone);
As in Android there are many Settings classes and here it would be :
android.provider.Settings
Looks like this is as close as you can get
Intent i = new Intent(Settings.ACTION_SETTINGS);
startActivity(i);
Takes you to the main settings page. There doesn't seem to be an option to go to the About Phone page.
Short answer you can't .
Long answer all you can do is create an activity and show all the info from about page in your activity by problematically polling out the info from the system