Android add TextView components and ImageView components dynamically

Import android.app.Activity;

Import Android.os.Bundle;

Import android.view.Gravity;

Import Android.view.View;

Import Android.view.ViewGroup;

Import Android.widget.AdapterView;

Import Android.widget.BaseAdapter;

Import Android.widget.Gallery;

Import Android.widget.ImageView;

Import Android.widget.LinearLayout;

Import Android.widget.ListView;

Import Android.widget.TextView;

Import Android.widget.AdapterView.OnItemClickListener;

Import Android.widget.AdapterView.OnItemSelectedListener;

public class Sample_5_4 extends Activity {

all resource images (Andy,Bill,Edgar,torvalds, Turing) An array of IDs

Int[] Drawableids=

{r.drawable.andy,r.drawable.bill,r.drawable.edgar,r.drawable.torvalds,r.drawable.turing};

All resource strings (Andy,Bill,Edgar,torvalds ,Turing) An array of IDs

Int[] msgids={r.string.andy,r.string.bill,r.string.edgar,r.string.torvalds,r.string.turing};

public void OnCreate (Bundle savedinstancestate) {

Super.oncreate (savedinstancestate);

Setcontentview (R.layout.main);

ListView lv= (ListView) This.findviewbyid (R.ID.LISTVIEW01);// Initialize listview

Baseadapter ba=new Baseadapter () {// Prepare content adapter for ListView

public int GetCount () {return 5;} A total of 5 Options

Public Object getItem (int arg0) {return null;}

public long getitemid (int arg0) {return 0;}

Public View getView (int arg0, view arg1, ViewGroup arg2) {

dynamically generate the viewfor each drop-down item, each drop-down view by linearlayout

contains a ImageView and a TextView composition

LinearLayout ll=new LinearLayout (sample_5_4.this);// Initialize linearlayout

Ll.setorientation (linearlayout.horizontal); Set Orientation

Ll.setpadding (5,5,5,5);// set aside white around

ImageView ii=new ImageView (sample_5_4.this);// Initialize ImageView

Ii.setimagedrawable (Getresources (). getdrawable (drawableids[arg0]));// Set Picture

Ii.setscaletype (ImageView.ScaleType.FIT_XY);

Ii.setlayoutparams (New Gallery.layoutparams (100,98));

Ll.addview (ii);// Add to linearlayout

TextView tv=new TextView (sample_5_4.this);// Initialize TextView

Tv.settext (Getresources (). GetText (msgids[arg0]));// Set content

Tv.settextsize ()// set Font size

Tv.settextcolor (Sample_5_4.this.getResources (). GetColor (R.color.white));// Set Font color

Tv.setpadding (5,5,5,5);// set aside white around

Tv.setgravity (Gravity.left);

Ll.addview (TV);// Add to linearlayout

return ll;

}

};

Lv.setadapter (BA);// Set content adapter for ListView

Lv.setonitemselectedlistener (// SET option selected Listener

New Onitemselectedlistener () {

public void onitemselected (adapterview<?> arg0, View arg1,

int arg2, long arg3) {// override option handled by selected event

TextView tv= (TextView) Findviewbyid (R.ID.TEXTVIEW01);// Get the main interface TextView

LinearLayout ll= (linearlayout) arg1;// Gets the linearlayout of the currently selected option

TextView tvn= (TextView) Ll.getchildat (1);// get one of the TextView

StringBuilder sb=new StringBuilder ();// Generate information dynamically with StringBuilder

Sb.append (Getresources (). GetText (R.string.ys));

Sb.append (":");

Sb.append (Tvn.gettext ());

String stemp=sb.tostring ();

Tv.settext (Stemp.split ("\\n") [0]);// information set into the main interface TextView

}

public void onnothingselected (Adapterview<?> arg0) {}

}

);

Lv.setonitemclicklistener (// set option clicked Listener

New Onitemclicklistener () {

public void Onitemclick (adapterview<?> arg0, View arg1, int arg2,

Long Arg3) {// override options How to handle a clicked event

TextView tv= (TextView) Findviewbyid (R.ID.TEXTVIEW01);// Get the main interface TextView

LinearLayout ll= (linearlayout) arg1;// Gets the linearlayout of the currently selected option

TextView tvn= (TextView) Ll.getchildat (1);// get one of the TextView

StringBuilder sb=new StringBuilder ();// Generate information dynamically with StringBuilder

Sb.append (Getresources (). GetText (R.string.ys));

Sb.append (":");

Sb.append (Tvn.gettext ());

String stemp=sb.tostring ();

Tv.settext (Stemp.split ("\\n") [0]);// information set into the main interface TextView

}

}

);

}

}

<?xml version= "1.0" encoding= "Utf-8"?>

<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"

android:orientation= "Vertical"

Android:layout_width= "Fill_parent"

android:layout_height= "Fill_parent" >

<textview

Android:id= "@+id/textview01"

Android:layout_width= "Fill_parent"

android:layout_height= "Wrap_content"

Android:textsize= "24dip"

Android:textcolor= "@color/white"

android:text= "@string/hello"/>

<listview

Android:id= "@+id/listview01"

Android:layout_width= "Fill_parent"

android:layout_height= "Wrap_content"

Android:choicemode= "Singlechoice"/>

</LinearLayout>

Android add TextView components and ImageView components dynamically