Add path_provider plugin (#12)

Author: szakarias

packages/path-provider/.gitignore

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+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+build/
+ios/.generated/
+packages
+pubspec.lock

packages/path-provider/CHANGELOG.md

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+## [0.1.0] - 2017-05-03
+
+* Initial Open Source release.

packages/path-provider/LICENSE

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+Copyright 2017, the Flutter project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/path-provider/README.md

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+# path_provider
+
+Flutter plugin for finding commonly used locations on the filesystem. Supports iOS and Android.
+
+
+## Usage
+
+To use this plugin, add path_provider as a [dependency in your pubspec.yaml file](https://flutter.io/platform-plugins/).
+
+
+### Example
+After importing ```'package:path_provider/path_provider.dart'``` the directories can be queried as follows
+
+``` dart
+ Directory tempDir = await getTemporaryDirectory();
+ String tempPath = tempDir.path;
+
+ Directory appDocDir = await getApplicationDocumentsDirectory();
+ String appDocPath = appDocDir.path;
+ ```
+Please see the example app of this plugin for a full example.

packages/path-provider/android/.gitignore

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

packages/path-provider/android/build.gradle

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+group 'io.flutter.plugins.path_provider'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.3.0'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion '25.0.0'
+
+    defaultConfig {
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}

packages/path-provider/android/gradle.properties

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+org.gradle.jvmargs=-Xmx1536M

packages/path-provider/android/settings.gradle

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+rootProject.name = 'path_provider'

packages/path-provider/android/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="io.flutter.plugins.path_provider"
+  android:versionCode="1"
+  android:versionName="0.0.1">
+
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="21" />
+</manifest>

packages/path-provider/android/src/main/java/io/flutter/plugins/path_provider/PathProviderPlugin.java

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package io.flutter.plugins.path_provider;
+
+import io.flutter.app.FlutterActivity;
+import io.flutter.plugin.common.MethodChannel;
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
+import io.flutter.plugin.common.MethodChannel.Result;
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.util.PathUtils;
+
+
+public class PathProviderPlugin implements MethodCallHandler {
+  private FlutterActivity activity;
+
+  public static PathProviderPlugin register(FlutterActivity activity) {
+    return new PathProviderPlugin(activity);
+  }
+
+  private PathProviderPlugin(FlutterActivity activity) {
+    this.activity = activity;
+    new MethodChannel(activity.getFlutterView(), "plugins.flutter.io/path_provider").
+            setMethodCallHandler(this);
+  }
+
+  @Override
+  public void onMethodCall(MethodCall call, Result result) {
+    switch (call.method) {
+      case "getTemporaryDirectory":
+        result.success(getPathProviderTemporaryDirectory());
+        break;
+      case "getApplicationDocumentsDirectory":
+        result.success(getPathProviderApplicationDocumentsDirectory());
+        break;
+      default:
+        result.notImplemented();
+    }
+  }
+
+  private String getPathProviderTemporaryDirectory() {
+    return activity.getCacheDir().getPath();
+  }
+
+  private String getPathProviderApplicationDocumentsDirectory() {
+    return PathUtils.getDataDirectory(activity);
+  }
+}