<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".MainActivity"> <Button android:id="@+id/button" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="onUrlClick" android:text="@string/button_url" /> <Button android:id="@+id/button5" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="onUriClick" android:text="@string/button_uri" /> <Button android:id="@+id/button2" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="onTextClick" android:text="@string/button_send" /> <Button android:id="@+id/button3" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="onTextChooserClick" android:text="@string/button_chooser" /> <Button android:id="@+id/button4" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="onUnknownClick" android:text="@string/button_error" /> <Button android:id="@+id/button6" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="onPhoneClick" android:text="@string/button_tel" /> <Button android:id="@+id/button7" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="onContactClick" android:text="@string/button_contact" /> </LinearLayout>