Android Development Learning--day7

Linear layout

<?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:orientation= "Horizontal"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= "Test.example.com.uilayouttest.MainActivity" > <Button Android:id= "@+id/button_1"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:layout_gravity= "Top"Android:text= "Button 1"/> <Button Android:id= "@+id/button_2"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:layout_gravity= "Center_vertical"Android:text= "button 2"/> <Button Android:id= "@+id/button_3"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:layout_gravity= "Bottom"Android:text= "Button 3"/></linearlayout>

Relative layout

<?xml version= "1.0" encoding= "Utf-8"? ><relativelayout xmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:tools= "Http://schemas.android.com/tools"android:orientation= "Horizontal"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= "Test.example.com.uilayouttest.MainActivity" > <Button Android:id= "@+id/button1"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_alignparentbottom= "true"Android:layout_alignparentright= "true"Android:text= "Send"/> <Button Android:id= "@+id/button2"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_above= "@+id/button1"Android:layout_toleftof= "@+id/button1"Android:text= "button"/></relativelayout>

Frame layout

<?xml version= "1.0" encoding= "Utf-8"? ><framelayout 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= "Test.example.com.uilayouttest.MainActivity" > <TextView Android:id= "@+id/text_view"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:layout_gravity= "Left"Android:text= "This is TextView"/> <ImageView Android:id= "@+id/image_view"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:layout_gravity= "Right"android:src= "@mipmap/ic_launcher"/></framelayout>

Android Development Learning--day7