Transfer Data Using bundle in android

Activity1.xml

<? Xml version = "1.0" encoding = "UTF-8"?>
<AbsoluteLayout xmlns: android = "http://schemas.android.com/apk/res/android"
Android: id = "@ + id/widget0"
Android: layout_width = "fill_parent"
Android: layout_height = "fill_parent">

<TextView
Android: id = "@ + id/title"
Android: layout_width = "243px"
Android: layout_height = "29px"
Android: text = "@ string/title"
Android: textSize = "24sp"
Android: layout_x = "36px"
Android: layout_y = "32px"/>
<TextView
Android: id = "@ + id/text1"
Android: layout_width = "wrap_content"
Android: layout_height = "37px"
Android: text = "@ string/text1"
Android: textSize = "18sp"
Android: layout_x = "40px"
Android: layout_y = "156px"/>
<TextView
Android: id = "@ + id/text2"
Android: layout_width = "wrap_content"
Android: layout_height = "29px"
Android: text = "@ string/text2"
Android: textSize = "18sp"
Android: layout_x = "40px"
Android: layout_y = "102px"/>
<TextView
Android: id = "@ + id/text3"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: text = "cm"
Android: textSize = "18sp"
Android: layout_x = "231px"
Android: layout_y = "157px"/>
<Button
Android: id = "@ + id/button1"
Android: layout_width = "70px"
Android: layout_height = "48px"
Android: layout_x = "130px"
Android: layout_y = "232px"
Android: text = "computing"/>

<RadioGroup
Android: id = "@ + id/sex"
Android: layout_width = "300px"
Android: layout_height = "100px"
Xmlns: android = "http://schemax.android.com/apk/res/android"
Android: layout_x = "97px"
Android: layout_y = "98px"
Android: orientation = "horizontal"
Android: checkedButton = "@ + id/sex1">
<RadioButton
Android: id = "@ + id/sex1"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: text = "male"/>
<RadioButton
Android: id = "@ + id/sex2"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: text = "female"/>
</RadioGroup>

<EditText
Android: id = "@ + id/height"
Android: layout_width = "130px"
Android: layout_height = "wrap_content"
Android: textSize = "18sp"
Android: layout_x = "96px"
Android: layout_y = "142px"
Android: numeric = "decimal">
</EditText>"

</AbsoluteLayout>

 

Activity2.xml

<? Xml version = "1.0" encoding = "UTF-8"?>
<AbsoluteLayout xmlns: android = "http://schemas.android.com/apk/res/android"
Android: layout_width = "fill_parent"
Android: layout_height = "fill_parent">

<TextView
Android: id = "@ + id/text1"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: textSize = "20sp"
Android: layout_x = "50px"
Android: layout_y = "72px"/>

</AbsoluteLayout>

 

Activity1.java

Package com. bund;

Import android. app. Activity;
Import android. content. Intent;
Import android. OS. Bundle;
Import android. view. View;
Import android. widget. Button;
Import android. widget. EditText;
Import android. widget. RadioButton;

Public class Activity1 extends Activity {
/** Called when the activity is first created .*/
@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
SetContentView (R. layout. activity1 );

Button b1 = (Button) findViewById (R. id. button1 );
B1.setOnClickListener (new Button. OnClickListener (){

@ Override
Public void onClick (View v ){
// Get the entered height www.2cto.com
EditText et = (EditText) findViewById (R. id. height );
Double height = Double. parseDouble (et. getText (). toString ());
// Obtain the Selected Gender
String sex = "";
RadioButton P4 = (RadioButton) findViewById (R. id. sex1 );
If (rb1.isChecked ()){
Sex = "M ";
} Else {
Sex = "F ";
}

Intent intent = new Intent ();
Intent. setClass (Activity1.this, Activity2.class );

// New a Bundle object and pass in the data to be passed in
Bundle bundle = new Bundle ();
Bundle. putDouble ("height", height );
Bundle. putString ("sex", sex );

// Assign the Bundle object assign to Intent
Intent. putExtras (bundle );

// Call Activity2
StartActivity (intent );
}

});
}
}

 

Activity2.java

Package com. bund;

Import java. text. DecimalFormat;
Import java. text. NumberFormat;
Import android. app. Activity;
Import android. OS. Bundle;
Import android. widget. TextView;

Public class Activity2 extends Activity {

@ Override
Protected void onCreate (Bundle savedInstanceState ){
// TODO Auto-generated method stub
Super. onCreate (savedInstanceState );

// Load activity2.xml
SetContentView (R. layout. activity2 );

// Obtain the Bundle object in Intent
Bundle bunde = this. getIntent (). getExtras ();

// Obtain data in the Bundle object
String sex = bunde. getString ("sex ");
Double height = bunde. getDouble ("height ");

// Determine gender
String sexText = "";
If (sex. equals ("M ")){
SexText = "male ";
} Else {
SexText = "female ";
}

// Get the standard weight
String weight = this. getWeight (sex, height );

// Set the input text
TextView tv1 = (TextView) findViewById (R. id. text1 );
Tv1.setText ("You are a person" + sexText + "\ n your height is" + height + "CM \ n your standard weight is" + weight + "kg ");
}

// Rounding
Private String format (double num ){
Numberformatter = new DecimalFormat ("0.00 ");
String s = formatter. format (num );
Return s;
}

// Obtain the Button object with findViewById () and add onClickListener
Private String getWeight (String sex, double height ){
String weight = "";
If (sex. equals ("M ")){
Weight = format (height-80) * 0.7 );
} Else {
Weight = format (height-70) * 0.6 );
}
Return weight;
}
}

 

From Gao jicai _ Android