/*
Welcome to the source code for Android Programming Tutorials (http://commonsware.com/AndTutorials)!
Specifically, this is for Version 3.2 and above of this book.
For the source code for older versions of this book, please
visit:
https://github.com/commonsguy/cw-andtutorials
All of the source code in this archive is licensed under the
Apache 2.0 license except as noted.
The names of the top-level directories roughly correspond to a
shortened form of the chapter titles. Since chapter numbers
change with every release, and since some samples are used by
multiple chapters, I am loathe to put chapter numbers in the
actual directory names.
If you wish to use this code, bear in mind a few things:
* The projects are set up to be built by Ant, not by Eclipse.
If you wish to use the code with Eclipse, you will need to
create a suitable Android Eclipse project and import the
code and other assets.
* You should delete build.xml from the project, then run
android update project -p ...
(where ... is the path to a project of interest)
on those projects you wish to use, so the build files are
updated for your Android SDK version.
*/
package apt.tutorial;
import android.app.TabActivity;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.LayoutInflater;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RadioGroup;
import android.widget.TabHost;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
public class LunchList extends TabActivity {
List model=new ArrayList();
RestaurantAdapter adapter=null;
EditText name=null;
EditText address=null;
EditText notes=null;
RadioGroup types=null;
Restaurant current=null;
AtomicBoolean isActive=new AtomicBoolean(true);
int progress=0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
name=(EditText)findViewById(R.id.name);
address=(EditText)findViewById(R.id.addr);
notes=(EditText)findViewById(R.id.notes);
types=(RadioGroup)findViewById(R.id.types);
Button save=(Button)findViewById(R.id.save);
save.setOnClickListener(onSave);
ListView list=(ListView)findViewById(R.id.restaurants);
adapter=new RestaurantAdapter();
list.setAdapter(adapter);
TabHost.TabSpec spec=getTabHost().newTabSpec("tag1");
spec.setContent(R.id.restaurants);
spec.setIndicator("List", getResources()
.getDrawable(R.drawable.list));
getTabHost().addTab(spec);
spec=getTabHost().newTabSpec("tag2");
spec.setContent(R.id.details);
spec.setIndicator("Details", getResources()
.getDrawable(R.drawable.restaurant));
getTabHost().addTab(spec);
getTabHost().setCurrentTab(0);
list.setOnItemClickListener(onListClick);
}
@Override
public void onPause() {
super.onPause();
isActive.set(false);
}
@Override
public void onResume() {
super.onResume();
isActive.set(true);
if (progress>0) {
startWork();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
new MenuInflater(this).inflate(R.menu.option, menu);
return(super.onCreateOptionsMenu(menu));
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId()==R.id.toast) {
String message="No restaurant selected";
if (current!=null) {
message=current.getNotes();
}
Toast.makeText(this, message, Toast.LENGTH_LONG).show();
return(true);
}
else if (item.getItemId()==R.id.run) {
startWork();
return(true);
}
return(super.onOptionsItemSelected(item));
}
private void startWork() {
setProgressBarVisibility(true);
new Thread(longTask).start();
}
private void doSomeLongWork(final int incr) {
runOnUiThread(new Runnable() {
public void run() {
progress+=incr;
setProgress(progress);
}
});
SystemClock.sleep(250); // should be something more useful!
}
private View.OnClickListener onSave=new View.OnClickListener() {
public void onClick(View v) {
current=new Restaurant();
current.setName(name.getText().toString());
current.setAddress(address.getText().toString());
current.setNotes(notes.getText().toString());
switch (types.getCheckedRadioButtonId()) {
case R.id.sit_down:
current.setType("sit_down");
break;
case R.id.take_out:
current.setType("take_out");
break;
case R.id.delivery:
current.setType("delivery");
break;
}
adapter.add(current);
}
};
private AdapterView.OnItemClickListener onListClick=new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView parent,
View view, int position,
long id) {
current=model.get(position);
name.setText(current.getName());
address.setText(current.getAddress());
notes.setText(current.getNotes());
if (current.getType().equals("sit_down")) {
types.check(R.id.sit_down);
}
else if (current.getType().equals("take_out")) {
types.check(R.id.take_out);
}
else {
types.check(R.id.delivery);
}
getTabHost().setCurrentTab(1);
}
};
private Runnable longTask=new Runnable() {
public void run() {
for (int i=progress;
i<10000 && isActive.get();
i+=200) {
doSomeLongWork(200);
}
if (isActive.get()) {
runOnUiThread(new Runnable() {
public void run() {
setProgressBarVisibility(false);
progress=0;
}
});
}
}
};
class RestaurantAdapter extends ArrayAdapter {
RestaurantAdapter() {
super(LunchList.this, R.layout.row, model);
}
public View getView(int position, View convertView,
ViewGroup parent) {
View row=convertView;
RestaurantHolder holder=null;
if (row==null) {
LayoutInflater inflater=getLayoutInflater();
row=inflater.inflate(R.layout.row, parent, false);
holder=new RestaurantHolder(row);
row.setTag(holder);
}
else {
holder=(RestaurantHolder)row.getTag();
}
holder.populateFrom(model.get(position));
return(row);
}
}
static class RestaurantHolder {
private TextView name=null;
private TextView address=null;
private ImageView icon=null;
RestaurantHolder(View row) {
name=(TextView)row.findViewById(R.id.title);
address=(TextView)row.findViewById(R.id.address);
icon=(ImageView)row.findViewById(R.id.icon);
}
void populateFrom(Restaurant r) {
name.setText(r.getName());
address.setText(r.getAddress());
if (r.getType().equals("sit_down")) {
icon.setImageResource(R.drawable.ball_red);
}
else if (r.getType().equals("take_out")) {
icon.setImageResource(R.drawable.ball_yellow);
}
else {
icon.setImageResource(R.drawable.ball_green);
}
}
}
}
package apt.tutorial;
public class Restaurant {
private String name="";
private String address="";
private String type="";
private String notes="";
public String getName() {
return(name);
}
public void setName(String name) {
this.name=name;
}
public String getAddress() {
return(address);
}
public void setAddress(String address) {
this.address=address;
}
public String getType() {
return(type);
}
public void setType(String type) {
this.type=type;
}
public String getNotes() {
return(notes);
}
public void setNotes(String notes) {
this.notes=notes;
}
public String toString() {
return(getName());
}
}
//layout/main.xml
android:layout_width="fill_parent"
android:layout_height="fill_parent">
android:layout_width="fill_parent"
android:layout_height="fill_parent">
android:layout_height="wrap_content"
/>
android:layout_height="fill_parent"
>
android:layout_height="fill_parent"
>
android:layout_height="wrap_content"
/>
android:layout_height="wrap_content"
android:stretchColumns="1"
android:paddingTop="4dip"
>
/>
/>
/>
android:gravity="top"
android:lines="2"
android:scrollHorizontally="false"
android:maxLines="2"
android:maxWidth="200sp"
/>
android:layout_height="wrap_content"
android:text="Save"
/>
//layout/row.xml
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="4dip"
>
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:layout_marginRight="4dip"
/>
android:layout_height="wrap_content"
android:orientation="vertical"
>
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center_vertical"
android:textStyle="bold"
android:singleLine="true"
android:ellipsize="end"
/>
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center_vertical"
android:singleLine="true"
android:ellipsize="end"
/>
//layout-land.xml
android:layout_width="fill_parent"
android:layout_height="fill_parent">
android:layout_width="fill_parent"
android:layout_height="fill_parent">
android:layout_height="wrap_content"
/>
android:layout_height="fill_parent"
>
android:layout_height="wrap_content"
/>
android:layout_height="wrap_content"
android:stretchColumns="1,3"
android:paddingTop="4dip"
>
android:paddingRight="2dip"
/>
android:maxWidth="140sp"
/>
android:paddingLeft="2dip"
android:paddingRight="2dip"
/>
android:maxWidth="140sp"
/>
/>
/>
/>
android:paddingLeft="2dip"
/>
android:layout_height="fill_parent"
android:orientation="vertical"
>
android:gravity="top"
android:lines="3"
android:scrollHorizontally="false"
android:maxLines="3"
android:maxWidth="140sp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
android:layout_height="wrap_content"
android:text="Save"
/>
//option.xml
android:icon="@drawable/toast"
/>
android:icon="@drawable/run"
/>
//strings.xml
LunchList