/
HeaderFooterDemo.java
100 lines (82 loc) · 3.13 KB
/
HeaderFooterDemo.java
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/***
Copyright (c) 2008-2012 CommonsWare, LLC
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy
of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
by applicable law or agreed to in writing, software distributed under the
License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
OF ANY KIND, either express or implied. See the License for the specific
language governing permissions and limitations under the License.
From _The Busy Coder's Guide to Android Development_
http://commonsware.com/Android
*/
package com.commonsware.android.header;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import android.app.ListActivity;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.TextView;
public class HeaderFooterDemo extends ListActivity {
private static String[] items={"lorem", "ipsum", "dolor",
"sit", "amet", "consectetuer",
"adipiscing", "elit", "morbi",
"vel", "ligula", "vitae",
"arcu", "aliquet", "mollis",
"etiam", "vel", "erat",
"placerat", "ante",
"porttitor", "sodales",
"pellentesque", "augue",
"purus"};
private long startTime=SystemClock.uptimeMillis();
private boolean areWeDeadYet=false;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
getListView().addHeaderView(buildHeader());
getListView().addFooterView(buildFooter());
setListAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,
items));
}
@Override
public void onDestroy() {
super.onDestroy();
areWeDeadYet=true;
}
private View buildHeader() {
Button btn=new Button(this);
btn.setText("Randomize!");
btn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
List<String> list=Arrays.asList(items);
Collections.shuffle(list);
setListAdapter(new ArrayAdapter<String>(HeaderFooterDemo.this,
android.R.layout.simple_list_item_1,
list));
}
});
return(btn);
}
private View buildFooter() {
TextView txt=new TextView(this);
updateFooter(txt);
return(txt);
}
private void updateFooter(final TextView txt) {
long runtime=(SystemClock.uptimeMillis()-startTime)/1000;
txt.setText(String.valueOf(runtime)+" seconds since activity launched");
if (!areWeDeadYet) {
getListView().postDelayed(new Runnable() {
public void run() {
updateFooter(txt);
}
}, 1000);
}
}
}