[WIP]ストレージの章

code/storage/FileSample/.gitignore

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+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+.idea/*
+*.iml
+

code/storage/FileSample/app/.gitignore

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+/build

code/storage/FileSample/app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 21
+    buildToolsVersion "21.0.2"
+
+    defaultConfig {
+        applicationId "jp.androidopentextbook.storage.filesample"
+        minSdkVersion 10
+        targetSdkVersion 21
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile 'com.android.support:appcompat-v7:21.0.2'
+    compile 'com.jakewharton:butterknife:6.0.0'
+}

code/storage/FileSample/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/fkm/software/android-sdk-macosx/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

code/storage/FileSample/app/src/androidTest/java/jp/androidopentextbook/storage/filesample/ApplicationTest.java

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+package jp.androidopentextbook.storage.filesample;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}

code/storage/FileSample/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="jp.androidopentextbook.storage.filesample" >
+
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <application
+        android:allowBackup="true"
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

code/storage/FileSample/app/src/main/java/jp/androidopentextbook/storage/filesample/MainActivity.java

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+package jp.androidopentextbook.storage.filesample;
+
+import android.content.Context;
+import android.os.Environment;
+import android.support.v7.app.ActionBarActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+
+
+public class MainActivity extends ActionBarActivity {
+
+    @InjectView(R.id.edit)
+    EditText mEdit;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        ButterKnife.inject(this, this);
+    }
+
+    @OnClick(R.id.button_internal_load)
+    void internalLoadClicked() {
+        InputStream in = null;
+        InputStreamReader sr = null;
+        BufferedReader br = null;
+        try {
+            in = openFileInput("myText.txt");
+            sr = new InputStreamReader(in);
+            br = new BufferedReader(sr);
+
+            String line;
+            StringBuilder sb = new StringBuilder();
+            while ((line = br.readLine()) != null) {
+                sb.append(line).append("\n");
+            }
+            mEdit.setText(sb.toString());
+
+            Toast.makeText(this, R.string.load_done, Toast.LENGTH_SHORT).show();
+        } catch (IOException e) {
+            Log.e("Internal", "IO Exception " + e.getMessage(), e);
+        } finally {
+            try {
+                if (br != null) { br.close(); }
+                if (sr != null) { sr.close(); }
+                if (in != null) { in.close(); }
+            } catch (IOException e) {
+                Log.e("Internal", "IO Exception " + e.getMessage(), e);
+            }
+        }
+    }
+
+    @OnClick(R.id.button_internal_save)
+    void internalSaveClicked() {
+        OutputStream out = null;
+        OutputStreamWriter writer = null;
+        BufferedWriter bw = null;
+        try {
+            out = openFileOutput("myText.txt", Context.MODE_PRIVATE);
+            writer = new OutputStreamWriter(out);
+            bw = new BufferedWriter(writer);
+
+            String text = mEdit.getText().toString();
+            bw.write(text);
+
+            Toast.makeText(this, R.string.save_done, Toast.LENGTH_SHORT).show();
+
+        } catch (IOException e) {
+            Log.e("Internal", "IO Exception " + e.getMessage(), e);
+        } finally {
+            try {
+                if (bw != null) { bw.close(); }
+                if (writer != null) { writer.close(); }
+                if (out != null) { out.close(); }
+            } catch (IOException e) {
+                Log.e("Internal", "IO Exception " + e.getMessage(), e);
+            }
+        }
+    }
+
+    @OnClick(R.id.button_external_load)
+    void externalLoadClicked() {
+        InputStream in = null;
+        InputStreamReader sr = null;
+        BufferedReader br = null;
+        try {
+            File foler = Environment.getExternalStoragePublicDirectory("MyDocuments");
+            File file = new File(foler, "myText.txt");
+            in = new FileInputStream(file);
+            sr = new InputStreamReader(in);
+            br = new BufferedReader(sr);
+
+            String line;
+            StringBuilder sb = new StringBuilder();
+            while ((line = br.readLine()) != null) {
+                sb.append(line).append("\n");
+            }
+            mEdit.setText(sb.toString());
+
+            Toast.makeText(this, R.string.load_done, Toast.LENGTH_SHORT).show();
+        } catch (IOException e) {
+            Log.e("External", "IO Exception " + e.getMessage(), e);
+        } finally {
+            try {
+                if (br != null) { br.close(); }
+                if (sr != null) { sr.close(); }
+                if (in != null) { in.close(); }
+            } catch (IOException e) {
+                Log.e("External", "IO Exception " + e.getMessage(), e);
+            }
+        }
+    }
+
+    @OnClick(R.id.button_external_save)
+    void externalSaveClicked() {
+        OutputStream out = null;
+        OutputStreamWriter writer = null;
+        BufferedWriter bw = null;
+        try {
+            File foler = Environment.getExternalStoragePublicDirectory("MyDocuments");
+            if (!foler.exists()) {
+                boolean result = foler.mkdir();
+                if (!result) {
+                    return;
+                }
+            }
+            File file = new File(foler, "myText.txt");
+            out = new FileOutputStream(file);
+            writer = new OutputStreamWriter(out);
+            bw = new BufferedWriter(writer);
+
+            String text = mEdit.getText().toString();
+            bw.write(text);
+
+            Toast.makeText(this, R.string.save_done, Toast.LENGTH_SHORT).show();
+        } catch (IOException e) {
+            Log.e("External", "IO Exception " + e.getMessage(), e);
+        } finally {
+            try {
+                if (bw != null) { bw.close(); }
+                if (writer != null) { writer.close(); }
+                if (out != null) { out.close(); }
+            } catch (IOException e) {
+                Log.e("External", "IO Exception " + e.getMessage(), e);
+            }
+        }
+    }
+
+}

code/storage/FileSample/app/src/main/res/layout/activity_main.xml

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+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:paddingLeft="@dimen/activity_horizontal_margin"
+              android:paddingRight="@dimen/activity_horizontal_margin"
+              android:paddingTop="@dimen/activity_vertical_margin"
+              android:paddingBottom="@dimen/activity_vertical_margin"
+              android:orientation="vertical">
+
+    <EditText
+        android:id="@+id/edit"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:inputType="textMultiLine"
+        android:gravity="left|top"
+        />
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1">
+        <TextView
+            android:id="@+id/text_1"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/internal_storage"/>
+        <LinearLayout
+            android:id="@+id/layout_internal"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/text_1"
+            android:orientation="horizontal">
+            <Button
+                android:id="@+id/button_internal_load"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="@string/load"/>
+            <Button
+                android:id="@+id/button_internal_save"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="@string/save"/>
+        </LinearLayout>
+
+        <TextView
+            android:id="@+id/text_2"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/layout_internal"
+            android:text="@string/external_storage"/>
+        <LinearLayout
+            android:id="@+id/layout_extrenal"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/text_2"
+            android:orientation="horizontal">
+            <Button
+                android:id="@+id/button_external_load"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="@string/load"/>
+            <Button
+                android:id="@+id/button_external_save"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="@string/save"/>
+        </LinearLayout>
+
+    </RelativeLayout>
+
+</LinearLayout>

code/storage/FileSample/app/src/main/res/menu/menu_main.xml

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+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto"
+      xmlns:tools="http://schemas.android.com/tools"
+      tools:context=".MainActivity">
+    <item android:id="@+id/action_settings"
+          android:title="@string/action_settings"
+          android:orderInCategory="100"
+          app:showAsAction="never"/>
+</menu>

code/storage/FileSample/app/src/main/res/values-w820dp/dimens.xml

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+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>

code/storage/FileSample/app/src/main/res/values/dimens.xml

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+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

code/storage/FileSample/app/src/main/res/values/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="app_name">FileSample</string>
+    <string name="hello_world">Hello world!</string>
+    <string name="action_settings">Settings</string>
+    <string name="internal_storage">Internal Storage</string>
+    <string name="load">Load</string>
+    <string name="save">Save</string>
+    <string name="external_storage">External storage</string>
+    <string name="save_done">Save done!</string>
+    <string name="load_done">Load done!</string>
+
+</resources>

code/storage/FileSample/app/src/main/res/values/styles.xml

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+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+    </style>
+
+</resources>