Try this one. <Button android:id=”@+id/bSearch” android:layout_width=”fill_parent” android:layout_height=”wrap_content” android:padding=”16dp” android:text=”Search” android:drawableLeft=”@android:drawable/ic_menu_search” android:textSize=”24sp”/>
For the xml: <Preference android:title=”Acts like a button” android:key=”@string/myCoolButton” android:summary=”This is a cool button” /> Then for the java in your onCreate() Preference button = findPreference(getString(R.string.myCoolButton)); button.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { //code for what you want it to do return true; } }); This will appear like a normal Preference, with … Read more
Set button visibility to GONE (button will be completely “removed” — the buttons space will be available for another widgets) or INVISIBLE (button will became “transparent” — its space will not be available for another widgets): View b = findViewById(R.id.button); b.setVisibility(View.GONE); or in xml: <Button … android:visibility=”gone”/>
Create an xml file named roundedbutton.xml in drawable folder <?xml version=”1.0″ encoding=”utf-8″?> <shape xmlns:android=”http://schemas.android.com/apk/res/android” android:shape=”rectangle”> <solid android:color=”#eeffffff” /> <corners android:bottomRightRadius=”8dp” android:bottomLeftRadius=”8dp” android:topRightRadius=”8dp” android:topLeftRadius=”8dp”/> </shape> Finally set that as background to your Button as android:background = “@drawable/roundedbutton” If you want to make it completely rounded, alter the radius and settle for something that is ok for … Read more
The problem is that the included layout isn’t being thought of as a data-bound layout. To make it act as one, you need to pass a variable: buttons.xml: <layout xmlns:andr…> <data> <variable name=”foo” type=”int”/> </data> <Button android:id=”@+id/button” ….” /> main.xml: <layout xmlns:andr… … <include layout=”@layout/buttons” android:id=”@+id/buttons” app:foo=”@{1}”/> …. Then you can access buttons indirectly through … Read more
Use xml drawable like this: Save the following contents as round_button.xml in drawable folder <?xml version=”1.0″ encoding=”utf-8″?> <selector xmlns:android=”http://schemas.android.com/apk/res/android”> <item android:state_pressed=”false”> <shape android:shape=”oval”> <solid android:color=”#fa09ad”/> </shape> </item> <item android:state_pressed=”true”> <shape android:shape=”oval”> <solid android:color=”#c20586″/> </shape> </item> </selector> Android Material Effect: Although FloatingActionButton is a better option, If you want to do it using xml selector, create … Read more
saving a last click time when clicking will prevent this problem. i.e. private long mLastClickTime = 0; … // inside onCreate or so: findViewById(R.id.button).setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // mis-clicking prevention, using threshold of 1000 ms if (SystemClock.elapsedRealtime() – mLastClickTime < 1000){ return; } mLastClickTime = SystemClock.elapsedRealtime(); // do your magic … Read more
Step 1 : Create file named : my_button_bg.xml Step 2 : Place this file in res/drawables.xml Step 3 : Insert below code <?xml version=”1.0″ encoding=”utf-8″?> <shape xmlns:android=”http://schemas.android.com/apk/res/android” android:shape=”rectangle”> <gradient android:startColor=”#FFFFFF” android:endColor=”#00FF00″ android:angle=”270″ /> <corners android:radius=”3dp” /> <stroke android:width=”5px” android:color=”#000000″ /> </shape> Step 4: Use code “android:background=”@drawable/my_button_bg” where needed eg below: <Button android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:text=”Your Text” … Read more
Most of the time you need to create a Service to perform something in the background, and your visible Activity simply controls this Service. (I’m sure the Music player works in the same way, so the example in the docs seems a bit misleading.) If that’s the case, then your Activity can finish as usual … Read more
Officially fixed in Support Library rev.22 (Fri March 13, 2015). See relevant google code issue: https://issuetracker.google.com/issues/37008632 Usage example theme.xml: <item name=”colorButtonNormal”>@color/button_color</item> v21/theme.xml <item name=”android:colorButtonNormal”>@color/button_color</item>