Android interface jump and data exchange

Ching

Original address: http://blog.csdn.net/qingdujun/article/details/40015757

This article demonstrates: Android interface jump and data exchange, through a small demo show the whole process.

The effect is as follows:

1) Mainactivity.java

Package Doogle.xian.bundletest;import Android.app.activity;import Android.content.intent;import android.os.Bundle; Import Android.view.menu;import Android.view.menuitem;import Android.view.view;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.edittext;public Class Mainactivity extends Activity {@Override protected void onCreate (Bundle savedinstancestate) {super.oncreate        (savedinstancestate);        Setcontentview (R.layout.activity_main);        Button btn = (button) Findviewbyid (R.ID.BTN); Btn.setonclicklistener (New Onclicklistener () {@Overridepublic void OnClick (View arg0) {EditText name = (EditText) Findviewbyid (R.id.name); EditText age = (EditText) Findviewbyid (r.id.age); CData send = new CData (Name.gettext (). ToString (), Integer.parseint (Age.gettext (). ToString ())); Create a Bundle object bundle data = new Bundle ();d ata.putserializable ("MyData", send);//Create a Intent object Intent intent = new Intent ( Mainactivity.this,resultactivity.class); IntenT.putextras (data);//start Intent corresponding activitystartactivity (intent);}}); } @Override Public boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu, this adds items to the Actio        n Bar if it is present.        Getmenuinflater (). Inflate (R.menu.main, menu);    return true; } @Override public boolean onoptionsitemselected (MenuItem Item) {//Handle Action Bar item clicks here.  The action bar would//automatically handle clicks on the Home/up button, so long/As you specify a parent        Activity in Androidmanifest.xml.        int id = item.getitemid ();        if (id = = r.id.action_settings) {return true;    } return super.onoptionsitemselected (item); }}

2) Activity_main.xml

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android" xmlns:tools= "http// Schemas.android.com/tools "android:layout_width=" wrap_content "android:layout_height=" Wrap_content "Android:paddi ngbottom= "@dimen/activity_vertical_margin" android:paddingleft= "@dimen/activity_horizontal_margin" Android: paddingright= "@dimen/activity_horizontal_margin" android:paddingtop= "@dimen/activity_vertical_margin" tools: context= "Doogle.xian.bundletest.MainActivity" > <textview android:id= "@+id/tv" android:layout_width        = "Wrap_content" android:layout_height= "wrap_content" android:text= "passed to Activity2:"/> <edittext Android:id= "@+id/name" android:layout_width= "fill_parent" android:layout_height= "Wrap_content" Android oid:layout_below= "@id/tv" android:hint= "name"/> <edittext android:id= "@+id/age" Android:lay Out_width= "Fill_parent" android:layout_height= "Wrap_conTent "android:layout_below=" @id/name "android:hint=" Age "/> <button android:id=" @+id/btn "         Android:layout_width= "Wrap_content" android:layout_height= "wrap_content" android:layout_below= "@id/age" android:text= "Open Activity2"/></relativelayout>

3) Resultactivity.java

Package Doogle.xian.bundletest;import Android.app.activity;import Android.content.intent;import android.os.Bundle; Import Android.widget.textview;public class Resultactivity extends Activity {@Override    protected void OnCreate ( Bundle savedinstancestate) {        super.oncreate (savedinstancestate);        Setcontentview (R.layout.result);        TextView TV1 = (TextView) Findviewbyid (R.ID.TV1);        TextView TV2 = (TextView) Findviewbyid (R.ID.TV2);        Obtain the Intent        Intent Intent = getintent () that initiates the result        ; Remove the data from the bundle packet it carries directly through intent        CData accept = (CDATA) Intent.getserializableextra ("MyData");        Tv1.settext ("name" +accept.getname ());        Tv2.settext ("Age" +accept.getage ());}    }

4) Result.xml

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "    android:layout_width=" match_parent "    android:layout_height=" match_parent "    android:o rientation= "vertical" >    <textview        android:id= "@+id/tv"        android:layout_width= "Wrap_content"        android:layout_height= "wrap_content"        android:text= "received data:"/> <textview android:id=        "@+ ID/TV1 "        android:layout_width=" wrap_content "        android:layout_height=" wrap_content "        android:text=" "/>    <textview        android:id=" @+id/tv2 "        android:layout_width=" Wrap_content "        android: layout_height= "Wrap_content"        android:text= ""/></linearlayout>

5) Cdata.java

Package Doogle.xian.bundletest;import Java.io.serializable;public class CData implements Serializable{private static Final long serialversionuid = 1L; String Name;int age;public CData (string n, int a) {name = N;age = A;} Public String GetName () {return name;} public int getage () {return age;}}

6) Androidmainfest.xml

<?xml version= "1.0" encoding= "Utf-8"? ><manifest xmlns:android= "http://schemas.android.com/apk/res/        Android "package=" Doogle.xian.bundletest "android:versioncode=" 1 "android:versionname=" 1.0 "> <uses-sdk android:minsdkversion= "android:targetsdkversion="/> <application android:allowbackup = "true" android:icon= "@drawable/ic_launcher" android:label= "@string/app_name" android:theme= "@style/A Pptheme "> <activity android:name=". Mainactivity "android:label=" @string/app_name "> <intent-filter> <action Android:name= "Android.intent.action.MAIN"/> <category android:name= "Android.intent.category.LAUNCHER            "/> </intent-filter> </activity> <!--configuring activity--<activity Android:name= ". Resultactivity "android:label=" Activity2 "> </activitY> </application></manifest> 

Original address: http://blog.csdn.net/qingdujun/article/details/40015757

Android interface jump and data exchange