android--layout (linear layout linearlayout, table layout tablelayout, frame layout framelayout)

Linear layout:

<?XML version= "1.0" encoding= "Utf-8"?><LinearLayoutxmlns: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= "Com.example.chenshuai.test322.MainActivity"android:orientation= "vertical"android:gravity= "Center_horizontal"    >    <LinearLayoutAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"android:padding= "16DP">        <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "User name:"            />        <EditTextAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:hint= "Please enter user name"/><!--Default Value -    </LinearLayout>    <LinearLayoutAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"android:padding= "16DP">        <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Password:"            />        <EditTextAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:hint= "Please enter password"Android:password= "true"/><!--Password Entry box -    </LinearLayout>    <LinearLayoutAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"android:gravity= "Center_horizontal">        <ButtonAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Login"Android:layout_weight= "1"/><!--Weights -        <ButtonAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Register"Android:id= "@+id/button2"Android:layout_weight= "1"/>        <ButtonAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Cancel"Android:layout_weight= "1"/>    </LinearLayout></LinearLayout>

Table layout

<?XML version= "1.0" encoding= "Utf-8"?><Tablelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"Android:stretchcolumns= "Up">    <TableRow>        <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "User name:"            />        <EditTextAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:layout_span= "2"/>    </TableRow>    <TableRow>        <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Password:"            />        <EditTextAndroid:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:password= "true"Android:layout_span= "2"/>    </TableRow>    <TableRow>        <ButtonAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Login"Android:layout_weight= "1"/>        <ButtonAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Register"Android:id= "@+id/button2"Android:layout_weight= "1"/>        <ButtonAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Cancel"Android:layout_weight= "1"/>    </TableRow></Tablelayout>

Frame layout

<?XML version= "1.0" encoding= "Utf-8"?><Framelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent">    <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:width= "320DP"Android:height= "320DP"android:layout_gravity= "Center"Android:background= "#f00"/><!--Red -    <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:width= "280DP"Android:height= "280DP"android:layout_gravity= "Center"Android:background= "#0f0"/><!--Green -    <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:width= "240DP"Android:height= "240DP"android:layout_gravity= "Center"Android:background= "#00f"/><!--Blue -    <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:width= "200DP"Android:height= "200DP"android:layout_gravity= "Center"Android:background= "#ff0"/><!--Yellow -    <TextViewAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:width= "160DP"Android:height= "160DP"android:layout_gravity= "Center"Android:background= "#f0f"/><!--Purple -</Framelayout>

android--layout (linear layout linearlayout, table layout tablelayout, frame layout framelayout)