Add url-launcher plugin (#1)

Author: szakarias

packages/url-launcher/.gitignore

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

packages/url-launcher/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/url-launcher/README.md

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+# url_launcher
+
+A Flutter plugin project for launching a URL.
+
+## Getting Started
+
+Try out the plugin by running the project in the example/ folder.

packages/url-launcher/android/.gitignore

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

packages/url-launcher/android/build.gradle

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+group 'io.flutter.plugins.url_launcher'
+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/url-launcher/android/gradle.properties

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+org.gradle.jvmargs=-Xmx1536M

packages/url-launcher/android/settings.gradle

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+rootProject.name = 'url_launcher'

packages/url-launcher/android/src/main/AndroidManifest.xml

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

packages/url-launcher/android/src/main/java/io/flutter/plugins/url_launcher/UrlLauncherPlugin.java

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+package io.flutter.plugins.url_launcher;
+
+import android.content.Intent;
+import android.net.Uri;
+
+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;
+
+/**
+ * UrlLauncherPlugin
+ */
+public class UrlLauncherPlugin implements MethodCallHandler {
+  private FlutterActivity activity;
+
+  public static UrlLauncherPlugin register(FlutterActivity activity) {
+    return new UrlLauncherPlugin(activity);
+  }
+
+  private UrlLauncherPlugin(FlutterActivity activity) {
+    this.activity = activity;
+    new MethodChannel(
+            activity.getFlutterView(), "plugins.flutter.io/URLLauncher").setMethodCallHandler(this);
+  }
+
+  @Override
+  public void onMethodCall(MethodCall call, Result result) {
+    if (call.method.equals("UrlLauncher.launch")) {
+      launchURL((String) call.arguments);
+      result.success(null);
+    } else {
+      result.notImplemented();
+    }
+  }
+  private void launchURL(String url) {
+    try {
+      Intent launchIntent = new Intent(Intent.ACTION_VIEW);
+      launchIntent.setData(Uri.parse(url));
+      activity.startActivity(launchIntent);
+    } catch (java.lang.Exception exception) {
+      // Ignore parsing or ActivityNotFound errors
+    }
+  }
+}

packages/url-launcher/example/.gitignore

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