android-button

I've Created this layout and I don't know why Button 's height not filling the layout height <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <View android:layout_width="match_parent" android:layout_height="1dp" android:background="@color/pf_sm_dividor_light" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" > <RelativeLayout android:layout_width="match_parent" android:layout_height=

This question already has an answer here: Android EditText - Delete the last letter with a button 4 answers I have to buttons that writes A and B to an edittext. If there is something in the edittext how can I delete the last letters with the "Del" button ? My layout: <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" > <Button android:id="@+id/buttonb" android:layout_width="100dp" android:layout_height="100dp" android

I'm writing an Android game app for an Artificial Intelligence semester project. I'm getting a NullPointerException on Line 38 of the main class, which is the setOnClickListener for the new game button from the launch screen. Relevant sections Class WW3Activity: public class WW3Activity extends Activity { public boolean DebugMode = false; private String buildMenuEmplacement = ""; //[Initialization] Called when the app is first launched @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.startscreen); //[Initialization] Makes

I'm trying to do in android a group of buttons that can be selected and activate only one of them. I need to work with the same logic of a radiogroup and radiobuttons. I tried many alternatives but I want the most effective way. How can I do it? You can use this simple way : 1.activity_button_group.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_horizontal"> <Button android:layout_width="wrap_content" android:layout_height="wrap

How can I place two buttons on the same line in my login layout on my Android application? Just make a linear layout.Set the orientation to horizontal and add two buttons.Its ready you will get what you want.Before posting such questions try googling you will get the answer for sure.This piece of code will help you. <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /> <Button android:id="@+id/button2" android:layout_width="wrap