Menu and messages
/* 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.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.view.LayoutInflater; 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; public class LunchList extends TabActivity { List<Restaurant> model=new ArrayList<Restaurant>(); RestaurantAdapter adapter=null; EditText name=null; EditText address=null; EditText notes=null; RadioGroup types=null; Restaurant current=null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); 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 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); } return(super.onOptionsItemSelected(item)); } 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); } }; class RestaurantAdapter extends ArrayAdapter<Restaurant> { 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()); } } //strings.xml <?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">LunchList</string> </resources> //option.xml <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/toast" android:title="Raise Toast" android:icon="@drawable/toast" /> </menu> //main.xml <?xml version="1.0" encoding="utf-8"?> <TabHost xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/tabhost" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TabWidget android:id="@android:id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content" /> <FrameLayout android:id="@android:id/tabcontent" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ListView android:id="@+id/restaurants" android:layout_width="fill_parent" android:layout_height="fill_parent" /> <TableLayout android:id="@+id/details" android:layout_width="fill_parent" android:layout_height="wrap_content" android:stretchColumns="1" android:paddingTop="4dip" > <TableRow> <TextView android:text="Name:" /> <EditText android:id="@+id/name" /> </TableRow> <TableRow> <TextView android:text="Address:" /> <EditText android:id="@+id/addr" /> </TableRow> <TableRow> <TextView android:text="Type:" /> <RadioGroup android:id="@+id/types"> <RadioButton android:id="@+id/take_out" android:text="Take-Out" /> <RadioButton android:id="@+id/sit_down" android:text="Sit-Down" /> <RadioButton android:id="@+id/delivery" android:text="Delivery" /> </RadioGroup> </TableRow> <TableRow> <TextView android:text="Notes:" /> <EditText android:id="@+id/notes" android:singleLine="false" android:gravity="top" android:lines="2" android:scrollHorizontally="false" android:maxLines="2" android:maxWidth="200sp" /> </TableRow> <Button android:id="@+id/save" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Save" /> </TableLayout> </FrameLayout> </LinearLayout> </TabHost> //row.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:padding="4dip" > <ImageView android:id="@+id/icon" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentTop="true" android:layout_alignParentBottom="true" android:layout_marginRight="4dip" /> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <TextView android:id="@+id/title" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center_vertical" android:textStyle="bold" android:singleLine="true" android:ellipsize="end" /> <TextView android:id="@+id/address" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center_vertical" android:singleLine="true" android:ellipsize="end" /> </LinearLayout> </LinearLayout>