Merge pull request #86 from dharanidharandharmasivam/master

sample browser changes.

Author: JayavigneshwaranG

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.syncfusion.flutter_examples">
-
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission>
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that
          calls FlutterMain.startInitialization(this); in its onCreate method.
          In most cases you can leave this as-is, but you if you want to provide
@@ -10,6 +11,15 @@
         android:name="io.flutter.app.FlutterApplication"
         android:label="Syncfusion Flutter UI Widgets"
         android:icon="@mipmap/ic_launcher">
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.fileProvider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/provider_path"/>
+        </provider>
         <activity
             android:name=".MainActivity"
             android:launchMode="singleTop"

android/app/src/main/java/com/syncfusion/flutter_examples/MainActivity.java

@@ -1,13 +1,76 @@
 package com.syncfusion.flutter_examples;
 
+import android.Manifest;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
+
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+import androidx.core.content.FileProvider;
+import androidx.core.content.PermissionChecker;
+
+import java.io.File;
+
 import io.flutter.app.FlutterActivity;
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.plugin.common.MethodChannel;
 import io.flutter.plugins.GeneratedPluginRegistrant;
 
 public class MainActivity extends FlutterActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     GeneratedPluginRegistrant.registerWith(this);
+    new MethodChannel(getFlutterView(), "launchFile").setMethodCallHandler(new MethodChannel.MethodCallHandler() {
+      @Override
+      public void onMethodCall(MethodCall call, MethodChannel.Result result) {
+        if (call.method.equals("viewPdf")) {
+          String path = call.argument("file_path");
+          if(!checkPermission(Manifest.permission.READ_EXTERNAL_STORAGE)){
+            requestPermission(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE});
+          } else {
+            launchFile(path);
+          }
+        }
+      }
+    });
+  }
+  private void requestPermission(String[] permission){
+    ActivityCompat.requestPermissions(this, permission, 1);
+  }
+  private boolean checkPermission(String permission) {
+    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+      return true;
+    } else {
+      if (ContextCompat.checkSelfPermission(this, permission) == PermissionChecker.PERMISSION_GRANTED) {
+        return true;
+      } else {
+        return false;
+      }
+    }
+  }
+  private void launchFile(String filePath){
+    File file = new File(filePath);
+    if(file.exists()){
+      Intent intent = new Intent(Intent.ACTION_VIEW);
+      intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
+      intent.addCategory("android.intent.category.DEFAULT");
+      Uri uri = null;
+      if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        String packageName = this.getPackageName();
+        uri = FileProvider.getUriForFile(this, packageName + ".fileProvider", new File(filePath));
+      }else {
+        uri = Uri.fromFile(file);
+      }
+      intent.setDataAndType(uri, "application/pdf");
+      try{
+        this.startActivity(intent);
+      }catch (Exception e){
+        //Could not launch the file.
+      }
+    }
   }
 }

android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java

@@ -1,6 +1,7 @@
 package io.flutter.plugins;
 
 import io.flutter.plugin.common.PluginRegistry;
+import io.flutter.plugins.pathprovider.PathProviderPlugin;
 import io.flutter.plugins.urllauncher.UrlLauncherPlugin;
 
 /**
@@ -11,6 +12,7 @@ public static void registerWith(PluginRegistry registry) {
     if (alreadyRegisteredWith(registry)) {
       return;
     }
+    PathProviderPlugin.registerWith(registry.registrarFor("io.flutter.plugins.pathprovider.PathProviderPlugin"));
     UrlLauncherPlugin.registerWith(registry.registrarFor("io.flutter.plugins.urllauncher.UrlLauncherPlugin"));
   }
 

assets/fonts/Montserrat-Bold.ttf

@@ -2,9 +2,43 @@
 #include "GeneratedPluginRegistrant.h"
 
 @implementation AppDelegate
-
+UIDocumentInteractionController* _uiController;
 - (BOOL)application:(UIApplication *)application
     didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+      FlutterViewController* controller =(FlutterViewController*) self.window.rootViewController;
+
+            FlutterMethodChannel* viewPdfFileChannel = [FlutterMethodChannel methodChannelWithName:@"launchFile" binaryMessenger: controller];
+
+            [viewPdfFileChannel setMethodCallHandler:^(FlutterMethodCall* call, FlutterResult result) {
+                if ([@"viewPdf" isEqualToString:call.method]) {
+                    NSString* filePath = call.arguments[@"file_path"];
+                    NSFileManager* fileManager = [NSFileManager defaultManager];
+                    BOOL fileExist = [fileManager fileExistsAtPath:filePath];
+                    if(fileExist){
+                        NSString* fileExtension = [filePath pathExtension];
+                       _uiController  = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:filePath]];
+                        _uiController.delegate = self;
+                        if([fileExtension isEqualToString:@"pdf"]){
+                            _uiController.UTI = @"com.adobe.pdf";
+                        }
+                        else if([fileExtension isEqualToString:@"txt"]){
+                            _uiController.UTI = @"public.plain-text";
+                        }
+                        else{
+                            NSLog(@"The format %@ is not supported ", filePath);
+                        }
+                        @try {
+                            BOOL isPreview = [_uiController presentPreviewAnimated:YES];
+                            if(!isPreview){
+                                [_uiController presentOpenInMenuFromRect:CGRectMake(200, 20, 100, 100) inView: controller.view animated:YES];
+                            }
+
+                        } @catch (NSException *exception) {
+                            NSLog(@"%@", exception);
+                        }
+                    }
+                }
+            }];
   [GeneratedPluginRegistrant registerWithRegistry:self];
   // Override point for customization after application launch.
   return [super application:application didFinishLaunchingWithOptions:launchOptions];

assets/fonts/Montserrat-Medium.ttf

@@ -4,6 +4,12 @@
 
 #import "GeneratedPluginRegistrant.h"
 
+#if __has_include(<path_provider/FLTPathProviderPlugin.h>)
+#import <path_provider/FLTPathProviderPlugin.h>
+#else
+@import path_provider;
+#endif
+
 #if __has_include(<url_launcher/FLTURLLauncherPlugin.h>)
 #import <url_launcher/FLTURLLauncherPlugin.h>
 #else
@@ -13,6 +19,7 @@
 @implementation GeneratedPluginRegistrant
 
 + (void)registerWithRegistry:(NSObject<FlutterPluginRegistry>*)registry {
+  [FLTPathProviderPlugin registerWithRegistrar:[registry registrarForPlugin:@"FLTPathProviderPlugin"]];
   [FLTURLLauncherPlugin registerWithRegistrar:[registry registrarForPlugin:@"FLTURLLauncherPlugin"]];
 }
 

images/code.png

@@ -139,6 +139,7 @@ class SampleModel extends Model {
   Color bottomSheetBackgroundColor = Colors.white;
   final bool isTileView = true;
   Color cardThemeColor = Colors.white;
+  bool isWeb = false;
 
   void changeTheme(ThemeData _themeData) {
     themeData = _themeData;
@@ -185,8 +186,7 @@ class SampleModel extends Model {
 Future<void> updateControl() async {
   bool isSample = false;
   bool isChild = false;
-  final String jsonText =
-      await rootBundle.loadString('lib/sample_details.json');
+  final String jsonText = await rootBundle.loadString('lib/sample_details.json');
   final List<dynamic> controlList = json.decode(jsonText);
   List<SubItem> subItems = <SubItem>[];
   List<SubItem> subItems1 = <SubItem>[];
@@ -243,7 +243,7 @@ class ChartSampleData {
       this.yValue3,
       this.pointColor,
       this.size,
-      this.text});
+      this.text,this.open,this.close});
   final dynamic x;
   final num y;
   final dynamic xValue;
@@ -253,4 +253,6 @@ class ChartSampleData {
   final Color pointColor;
   final num size;
   final String text;
+  final num open;
+  final num close;
 }