First Android App

Yamba - From the book "Learning Android"

.classpath

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+<?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="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
+	<classpathentry kind="lib" path="jars/jtwitter.jar"/>
+	<classpathentry kind="lib" path="jars/signpost-core-1.2.1.1.jar"/>
+	<classpathentry kind="output" path="bin/classes"/>
+</classpath>

.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Yamba</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>

AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.igamahq.yamba"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk android:minSdkVersion="10" />
+
+    <application
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name" >
+        <activity
+            android:label="@string/app_name"
+            android:name=".StatusActivity" >
+            <intent-filter >
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+    <uses-permission android:name="android.permission.INTERNET" />
+</manifest>

gen/org/igamahq/yamba/R.java

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+/* 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 org.igamahq.yamba;
+
+public final class R {
+    public static final class attr {
+    }
+    public static final class drawable {
+        public static final int background=0x7f020000;
+        public static final int ic_launcher=0x7f020001;
+    }
+    public static final class id {
+        public static final int buttonUpdate=0x7f050002;
+        public static final int editText=0x7f050001;
+        public static final int textCount=0x7f050000;
+    }
+    public static final class layout {
+        public static final int status=0x7f030000;
+    }
+    public static final class string {
+        public static final int app_name=0x7f040000;
+        public static final int buttonUpdate=0x7f040003;
+        public static final int hintText=0x7f040002;
+        public static final int titleStatus=0x7f040001;
+    }
+}

proguard.cfg

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+-optimizationpasses 5
+-dontusemixedcaseclassnames
+-dontskipnonpubliclibraryclasses
+-dontpreverify
+-verbose
+-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
+
+-keep public class * extends android.app.Activity
+-keep public class * extends android.app.Application
+-keep public class * extends android.app.Service
+-keep public class * extends android.content.BroadcastReceiver
+-keep public class * extends android.content.ContentProvider
+-keep public class * extends android.app.backup.BackupAgentHelper
+-keep public class * extends android.preference.Preference
+-keep public class com.android.vending.licensing.ILicensingService
+
+-keepclasseswithmembernames class * {
+    native <methods>;
+}
+
+-keepclasseswithmembers class * {
+    public <init>(android.content.Context, android.util.AttributeSet);
+}
+
+-keepclasseswithmembers class * {
+    public <init>(android.content.Context, android.util.AttributeSet, int);
+}
+
+-keepclassmembers class * extends android.app.Activity {
+   public void *(android.view.View);
+}
+
+-keepclassmembers enum * {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
+
+-keep class * implements android.os.Parcelable {
+  public static final android.os.Parcelable$Creator *;
+}

project.properties

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+# 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,
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-10

res/layout/status.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:background="@drawable/background"
+    android:orientation="vertical" >
+
+    <TextView
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textSize="30sp"
+        android:layout_margin="10dp"
+        android:text="@string/titleStatus"
+        android:textColor="@android:color/white" />
+
+    <!-- Text Counter TextView	-->
+    <TextView 
+        android:layout_width="wrap_content"
+		android:layout_height="wrap_content" 
+		android:layout_gravity="right" 
+		android:id="@+id/textCount" 
+		android:text="000" 
+		android:layout_marginRight="10dp" />
+
+    <EditText
+        android:id="@+id/editText"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_weight="1" 
+        android:hint="@string/hintText" 
+        android:gravity="top|center_horizontal"
+        android:inputType="textMultiLine"
+        android:background="#cfff"
+        android:textColor="@android:color/black" >
+     </EditText>
+
+ <!-- Update Button --> 
+ 	<Button 
+ 	    android:layout_width="fill_parent"
+		android:layout_height="wrap_content" 
+		android:text="@string/buttonUpdate" 
+		android:textSize="20sp" 
+		android:id="@+id/buttonUpdate" >
+	</Button>
+
+</LinearLayout>

res/values-pt/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="app_name">Yamba</string>
+
+    <string name="titleStatus">Actividade Status!</string>
+    <string name="hintText">Mensagem de 140 caracteres</string>
+
+    <string name="buttonUpdate">Actualizar</string>
+
+</resources>

res/values/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="app_name">Yamba</string>
+
+    <string name="titleStatus">Status Activity!</string>
+    <string name="hintText">Please enter your 140-character status</string>
+
+    <string name="buttonUpdate">Update</string>
+
+</resources>

src/org/igamahq/yamba/StatusActivity.java

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+package org.igamahq.yamba;
+
+
+import winterwell.jtwitter.Twitter; 
+import winterwell.jtwitter.TwitterException;
+
+import android.app.Activity;
+import android.graphics.Color;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.View; 
+import android.view.View.OnClickListener; 
+import android.widget.Button; 
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+/* public class StatusActivity extends Activity {
+    // Called when the activity is first created.
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.status);
+    }
+}*/
+
+	public class StatusActivity extends Activity implements OnClickListener, TextWatcher {
+		private static final String TAG = "StatusActivity"; 
+		EditText editText; 
+		Button updateButton;
+		Twitter twitter;
+		TextView textCount;
+
+		/** Called when the activity is first created. */ 
+		@Override 
+		public void onCreate(Bundle savedInstanceState) {
+			super.onCreate(savedInstanceState); 
+			setContentView(R.layout.status);
+
+			// Find views 
+			editText = (EditText) findViewById(R.id.editText); // 
+			updateButton = (Button) findViewById(R.id.buttonUpdate);
+			updateButton.setOnClickListener(this);
+
+			textCount = (TextView) findViewById(R.id.textCount); // 
+			textCount.setText(Integer.toString(140)); // 
+			textCount.setTextColor(Color.GREEN);
+
+			editText.addTextChangedListener(this); //attach TextWatcher to our editText field
+
+			// Connect to Twitter
+			twitter = new Twitter("student", "password");
+			twitter.setAPIRootUrl("http://yamba.marakana.com/api");
+		}
+
+
+		// Called when button is clicked
+		public void onClick(View v){
+			String status = editText.getText().toString(); 
+			new PostToTwitter().execute(status); // 
+			Log.d(TAG, "onClicked");
+		}
+
+
+		// Asynchronously posts to twitter 
+		class PostToTwitter extends AsyncTask<String, Integer, String> { //
+			// Called to initiate the background activity
+
+			@Override
+			protected String doInBackground(String... statuses){
+				try { 
+					winterwell.jtwitter.Status status = twitter.updateStatus(statuses[0]); 
+					return status.text;
+				} catch (TwitterException e) {
+					Log.e(TAG, e.toString()); 
+					e.printStackTrace(); 
+					return "Failed to post";
+				}	
+			}
+
+			// Called when there's a status to be updated 
+			@Override 
+			protected void onProgressUpdate(Integer... values) { //
+				super.onProgressUpdate(values); 
+				// Not used in this case
+			}
+
+			// Called once the background activity has completed
+			@Override 
+			protected void onPostExecute(String result) { //
+				Toast.makeText(StatusActivity.this, result, Toast.LENGTH_LONG).show();
+			}
+
+
+		}//end posttotwitter
+
+		// TextWatcher Methods
+		public void afterTextChanged(Editable statusText){
+			int count = 140 - statusText.length();
+			textCount.setText(Integer.toString(count));
+			textCount.setTextColor(Color.GREEN);
+			if (count < 10)
+				textCount.setTextColor(Color.YELLOW); 
+			if (count < 0)
+				textCount.setTextColor(Color.RED);
+		}
+
+		public void beforeTextChanged(CharSequence s, int start, int count, int after) { // 
+
+		}
+
+		public void onTextChanged(CharSequence s, int start, int before, int count) { // 
+
+		}
+
+	}
+
+
+