activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="iterator.ir.a002.MainActivity" android:orientation="vertical"> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="@string/to_hint"/> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="@string/subject_hint"/> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="@string/message_hint" android:layout_weight="1" android:gravity="top|left"/> <Button android:layout_width="100dp" android:layout_height="wrap_content" android:hint="@string/buttonSend_text" android:layout_gravity="right"/> </LinearLayout>
References
https://www.youtube.com/watch?v=DVRN3EuF9ys&index=7&list=PLshdtb5UWjSp0879mLeCsDQN6L73XBZTk
https://github.com/mhdr/AndroidSamples/tree/master/002