Added source code from Session 1

TaskManager/.classpath

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="gen"/>
+	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

TaskManager/.project

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>TaskManager</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ApkBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

TaskManager/AndroidManifest.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="com.sudarmuthu.android.taskmanager"
+      android:versionCode="1"
+      android:versionName="1.0">
+    <application android:name=".TaskManagerApplication" android:icon="@drawable/icon" android:label="@string/app_name">
+        <activity android:name=".ViewTasksActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+		<activity android:name=".AddTaskActivity"
+                 android:label="@string/app_name"
+		 />
+    </application>
+    <uses-sdk android:minSdkVersion="4" />
+
+</manifest> 

TaskManager/default.properties

@@ -0,0 +1,13 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+# 
+# This file must be checked in Version Control Systems.
+# 
+# To customize properties used by the Ant build system use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=Google Inc.:Google APIs:4
+# Indicates whether an apk should be generated for each density.
+split.density=false

TaskManager/gen/com/sudarmuthu/android/taskmanager/R.java

@@ -0,0 +1,37 @@
+/* AUTO-GENERATED FILE.  DO NOT MODIFY.
+ *
+ * This class was automatically generated by the
+ * aapt tool from the resource data it found.  It
+ * should not be modified by hand.
+ */
+
+package com.sudarmuthu.android.taskmanager;
+
+public final class R {
+    public static final class attr {
+    }
+    public static final class drawable {
+        public static final int icon=0x7f020000;
+    }
+    public static final class id {
+        public static final int add_button=0x7f050002;
+        public static final int cancel_button=0x7f050003;
+        public static final int task_list=0x7f050004;
+        public static final int task_name=0x7f050001;
+        public static final int tasks_title=0x7f050000;
+    }
+    public static final class layout {
+        public static final int add_tasks=0x7f030000;
+        public static final int main=0x7f030001;
+    }
+    public static final class string {
+        public static final int add_task=0x7f040002;
+        public static final int app_name=0x7f040000;
+        public static final int cancel=0x7f040004;
+        public static final int cancel_task=0x7f040003;
+        public static final int discard=0x7f040007;
+        public static final int tasks=0x7f040001;
+        public static final int unsaved_changes_message=0x7f040006;
+        public static final int unsaved_changes_title=0x7f040005;
+    }
+}

TaskManager/res/layout/add_tasks.xml

@@ -0,0 +1,37 @@
+<?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/tasks_title"
+	android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text ="@string/add_task"
+    />	
+
+    <EditText
+	android:id="@+id/task_name"
+	android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+
+
+    />
+    <Button
+	android:id="@+id/add_button"
+	android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text ="@string/add_task"
+
+    />
+
+    <Button
+	android:id="@+id/cancel_button"
+	android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:text ="@string/cancel_task"
+
+    />
+</LinearLayout>

TaskManager/res/layout/main.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout 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/tasks_title"  
+    android:layout_width="fill_parent" 
+    android:layout_height="wrap_content" 
+    android:text="@string/tasks"
+    />
+<Button  
+	android:id="@+id/add_button"
+    android:layout_width="fill_parent" 
+    android:layout_height="wrap_content" 
+    android:text="@string/add_task"
+    android:layout_alignParentBottom="true"
+    />
+<TextView  
+	android:id="@+id/task_list"
+    android:layout_width="fill_parent" 
+    android:layout_height="wrap_content"
+    android:layout_below="@id/tasks_title"
+    android:layout_above="@id/add_button" 
+    />
+</RelativeLayout>

TaskManager/res/values/strings.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">TaskManager</string>
+    <string name="tasks">Tasks</string>
+    <string name="add_task">Add Task</string>
+    <string name="cancel_task">Cancel Tasks</string>
+    <string name="cancel">Cancel</string>
+    <string name="unsaved_changes_title">Unsaved changes</string>
+    <string name="unsaved_changes_message">You have a task which is not saved</string>
+    <string name="discard">Discard</string>
+</resources>

TaskManager/src/com/sudarmuthu/android/taskmanager/AddTaskActivity.java

@@ -0,0 +1,106 @@
+package com.sudarmuthu.android.taskmanager;
+
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+
+import com.sudarmuthu.android.taskmanager.tasks.Task;
+
+public class AddTaskActivity extends TaskMangerActivity {
+
+	private EditText taskNameEditText;
+	private Button addButton;
+	private Button cancelButton;
+	protected boolean changesPending;
+	private AlertDialog unsavedChangesDialog;
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.add_tasks);
+		setUpViews();
+	}
+
+	private void setUpViews() {
+		taskNameEditText = (EditText)findViewById(R.id.task_name);
+		addButton = (Button)findViewById(R.id.add_button);
+		cancelButton = (Button)findViewById(R.id.cancel_button);
+
+		addButton.setOnClickListener(new View.OnClickListener() {
+
+			@Override
+			public void onClick(View v) {
+				addTask();
+			}
+		});
+
+		cancelButton.setOnClickListener(new View.OnClickListener() {
+
+			@Override
+			public void onClick(View v) {
+				cancel();
+			}
+		});
+
+		taskNameEditText.addTextChangedListener(new TextWatcher() {
+
+			@Override
+			public void onTextChanged(CharSequence s, int start, int before, int count) {
+				changesPending = true;
+			}
+
+			@Override
+			public void beforeTextChanged(CharSequence s, int start, int count,
+					int after) {
+
+			}
+
+			@Override
+			public void afterTextChanged(Editable s) {
+
+			}
+		});
+	}
+
+	protected void cancel() {
+		if (changesPending) {
+			unsavedChangesDialog = new AlertDialog.Builder(this)
+			.setTitle(R.string.unsaved_changes_title)
+			.setMessage(R.string.unsaved_changes_message)
+			.setPositiveButton(R.string.add_task, new AlertDialog.OnClickListener() {
+				public void onClick(DialogInterface dialog, int which) {
+					addTask();
+				}
+			})
+			.setNeutralButton(R.string.discard, new AlertDialog.OnClickListener() {
+				public void onClick(DialogInterface dialog, int which) {
+					finish();
+				}
+
+			})
+			.setNegativeButton(android.R.string.cancel, new AlertDialog.OnClickListener() {
+				public void onClick(DialogInterface dialog, int which) {
+					unsavedChangesDialog.cancel();
+				}
+
+			})
+			.create();
+			unsavedChangesDialog.show();
+		} else {
+			finish();			
+		}
+	}
+
+	protected void addTask() {
+		String taskName = taskNameEditText.getText().toString();
+		Task t = new Task(taskName);
+		getTaskManagerApplication().addTask(t);
+		finish();
+	}
+
+}

TaskManager/src/com/sudarmuthu/android/taskmanager/TaskManagerApplication.java

@@ -0,0 +1,36 @@
+package com.sudarmuthu.android.taskmanager;
+
+import java.util.ArrayList;
+
+import android.app.Application;
+
+import com.sudarmuthu.android.taskmanager.tasks.Task;
+
+public class TaskManagerApplication extends Application {
+
+	private ArrayList<Task> currentTasks;
+
+	@Override
+	public void onCreate() {
+		super.onCreate();
+		if (null == currentTasks) {
+			currentTasks = new ArrayList<Task>();
+		}
+	}
+
+	public void setCurrentTasks(ArrayList<Task> currentTasks) {
+		this.currentTasks  = currentTasks;
+	}
+
+	public ArrayList<Task> getCurrentTasks() {
+		return currentTasks;
+	}
+
+	public void addTask(Task t) {
+		assert(null != t);
+		if (null == currentTasks) {
+			currentTasks = new ArrayList<Task>();
+		}
+		currentTasks.add(t);
+	}
+}

TaskManager/src/com/sudarmuthu/android/taskmanager/TaskMangerActivity.java

@@ -0,0 +1,10 @@
+package com.sudarmuthu.android.taskmanager;
+
+import android.app.Activity;
+
+public class TaskMangerActivity extends Activity {
+	protected TaskManagerApplication getTaskManagerApplication() {
+		TaskManagerApplication tma = (TaskManagerApplication)getApplication();
+		return tma;
+	}
+}