Relative layout of Android Development

Source: Internet
Author: User

[Plain]

Android: layout_above: Move the control's bottom to the control with the given ID

Android: layout_below: place the top of the control under the control with the given ID

Android: layout_toLeftOf align the right edge of the control with the left edge of the control with the given ID

Android: layout_toRightOf align the left edge of the control with the right edge of the control with the given ID

 

Android: layout_alignBaseline the baseline of the control is aligned with the baseline of the control with the given ID

Android: layout_alignBottom: Compares the bottom edge of the control with the bottom edge of the given ID control.

Android: layout_alignLeft: Align the left edge of the control with the given ID

Android: layout_alignRight: Align the right edge of the control with the right edge of the given ID Control

Android: layout_alignTop: aligntop

 

 

Android: alignParentBottom if the value is true, the bottom of the control is aligned with the bottom of the parent control.

Android: layout_alignParentLeft if the value is true, the left side of the control is aligned with the left side of the parent control.

Android: layout_alignParentRight if the value is true, the right side of the control is aligned with the right side of the parent control.

Android: layout_alignParentTop if the value is true, the top of the space is aligned with the top of the parent control.

 

Android: layout_centerHorizontal

Android: layout_centerInParent if the value is true, the control is centered in the horizontal and vertical directions of the parent control.

Android: layout_centerVertical if the value is true, the control will be centered in the vertical direction

Android: layout_above: Move the control's bottom to the control with the given ID

Android: layout_below: place the top of the control under the control with the given ID

Android: layout_toLeftOf align the right edge of the control with the left edge of the control with the given ID

Android: layout_toRightOf align the left edge of the control with the right edge of the control with the given ID

Android: layout_alignBaseline the baseline of the control is aligned with the baseline of the control with the given ID

Android: layout_alignBottom: Compares the bottom edge of the control with the bottom edge of the given ID control.

Android: layout_alignLeft: Align the left edge of the control with the given ID

Android: layout_alignRight: Align the right edge of the control with the right edge of the given ID Control

Android: layout_alignTop: aligntop

 

Android: alignParentBottom if the value is true, the bottom of the control is aligned with the bottom of the parent control.

Android: layout_alignParentLeft if the value is true, the left side of the control is aligned with the left side of the parent control.

Android: layout_alignParentRight if the value is true, the right side of the control is aligned with the right side of the parent control.

Android: layout_alignParentTop if the value is true, the top of the space is aligned with the top of the parent control.

Android: layout_centerHorizontal

Android: layout_centerInParent if the value is true, the control is centered in the horizontal and vertical directions of the parent control.

Android: layout_centerVertical if the value is true, the control will be centered in the vertical direction

 

Ii. Code display:

1. "Acticity_07srcyanacticity_07MainActivity.java"

[Java]

Package yan. activity_07;

 

Import android. OS. Bundle;

Import android. app. Activity;

Import android. view. Menu;

 

Public class MainActivity extends Activity {

 

@ Override

Protected void onCreate (Bundle savedInstanceState ){

Super. onCreate (savedInstanceState );

SetContentView (R. layout. activity_main );

}

 

@ Override

Public boolean onCreateOptionsMenu (Menu menu ){

// Inflate the menu; this adds items to the action bar if it is present.

GetMenuInflater (). inflate (R. menu. activity_main, menu );

Return true;

}

 

}

Package yan. activity_07;

Import android. OS. Bundle;

Import android. app. Activity;

Import android. view. Menu;

Public class MainActivity extends Activity {

@ Override

Protected void onCreate (Bundle savedInstanceState ){

Super. onCreate (savedInstanceState );

SetContentView (R. layout. activity_main );

}

@ Override

Public boolean onCreateOptionsMenu (Menu menu ){

// Inflate the menu; this adds items to the action bar if it is present.

GetMenuInflater (). inflate (R. menu. activity_main, menu );

Return true;

}

}

 

2. "Acticity_07reslayoutactivity_main.xml"

[Html]

<? Xml version = "1.0" encoding = "UTF-8"?>

<! --

Android: layout_above: Move the control's bottom to the control with the given ID

Android: layout_below: place the top of the control under the control with the given ID

Android: layout_toLeftOf align the right edge of the control with the left edge of the control with the given ID

Android: layout_toRightOf align the left edge of the control with the right edge of the control with the given ID

 

Android: layout_alignBaseline the baseline of the control is aligned with the baseline of the control with the given ID

Android: layout_alignBottom: Compares the bottom edge of the control with the bottom edge of the given ID control.

Android: layout_alignLeft: Align the left edge of the control with the given ID

Android: layout_alignRight: Align the right edge of the control with the right edge of the given ID Control

Android: layout_alignTop: aligntop

 

Android: alignParentBottom if the value is true, the bottom of the control is aligned with the bottom of the parent control.

Android: layout_alignParentLeft if the value is true, the left side of the control is aligned with the left side of the parent control.

Android: layout_alignParentRight if the value is true, the right side of the control is aligned with the right side of the parent control.

Android: layout_alignParentTop if the value is true, the top of the space is aligned with the top of the parent control.

 

Android: layout_centerHorizontal

Android: layout_centerInParent if the value is true, the control is centered in the horizontal and vertical directions of the parent control.

Android: layout_centerVertical if the value is true, the control will be centered in the vertical direction

-->

<RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: padding = "10px">

 

<TextView android: id = "@ + id/label"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: text = "Type here:"/>

 

<EditText android: id = "@ + id/entry"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: background = "@ android: drawable/editbox_background"

Android: layout_below = "@ id/label"/>

<Button android: id = "@ + id/OK"

Android: layout_width = "wrap_content"

Android: layout_height = "wrap_content"

Android: layout_below = "@ id/entry"

Android: layout_alignParentRight = "true"

Android: layout_marginLeft = "10px"

Android: text = "OK"/>

 

<Button android: layout_width = "wrap_content"

Android: layout_height = "wrap_content"

Android: layout_toLeftOf = "@ id/OK"

Android: layout_alignTop = "@ id/OK"

Android: text = "Cancel"/>

</RelativeLayout>

<? Xml version = "1.0" encoding = "UTF-8"?>

<! --

Android: layout_above: Move the control's bottom to the control with the given ID

Android: layout_below: place the top of the control under the control with the given ID

Android: layout_toLeftOf align the right edge of the control with the left edge of the control with the given ID

Android: layout_toRightOf align the left edge of the control with the right edge of the control with the given ID

Android: layout_alignBaseline the baseline of the control is aligned with the baseline of the control with the given ID

Android: layout_alignBottom: Compares the bottom edge of the control with the bottom edge of the given ID control.

Android: layout_alignLeft: Align the left edge of the control with the given ID

Android: layout_alignRight: Align the right edge of the control with the right edge of the given ID Control

Android: layout_alignTop: aligntop

 

Android: alignParentBottom if the value is true, the bottom of the control is aligned with the bottom of the parent control.

Android: layout_alignParentLeft if the value is true, the left side of the control is aligned with the left side of the parent control.

Android: layout_alignParentRight if the value is true, the right side of the control is aligned with the right side of the parent control.

Android: layout_alignParentTop if the value is true, the top of the space is aligned with the top of the parent control.

Android: layout_centerHorizontal

Android: layout_centerInParent if the value is true, the control is centered in the horizontal and vertical directions of the parent control.

Android: layout_centerVertical if the value is true, the control will be centered in the vertical direction

-->

<RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: padding = "10px">

<TextView android: id = "@ + id/label"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: text = "Type here:"/>

<EditText android: id = "@ + id/entry"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: background = "@ android: drawable/editbox_background"

Android: layout_below = "@ id/label"/>

 

<Button android: id = "@ + id/OK"

Android: layout_width = "wrap_content"

Android: layout_height = "wrap_content"

Android: layout_below = "@ id/entry"

Android: layout_alignParentRight = "true"

Android: layout_marginLeft = "10px"

Android: text = "OK"/>

<Button android: layout_width = "wrap_content"

Android: layout_height = "wrap_content"

Android: layout_toLeftOf = "@ id/OK"

Android: layout_alignTop = "@ id/OK"

Android: text = "Cancel"/>

</RelativeLayout>

Iii. effect display:

 

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