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Migrate to null safety #30

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Migrate to null safety #30

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2891573
migrate to null safety
codenameakshay Nov 1, 2021
3823d42
fix example not working, migrate it to null safety
codenameakshay Nov 1, 2021
05552ec
fix more errors in example
codenameakshay Nov 1, 2021
c571fec
fix lint errors
codenameakshay Nov 1, 2021
2175f24
fix null error
codenameakshay Nov 2, 2021
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34 changes: 17 additions & 17 deletions example/lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ class _MyAppState extends State<MyApp> {
String platformVersion;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
platformVersion = await WallpaperManager.platformVersion;
platformVersion = await WallpaperManager.platformVersion ?? '';
} on PlatformException {
platformVersion = 'Failed to get platform version.';
}
Expand All @@ -47,7 +47,7 @@ class _MyAppState extends State<MyApp> {
// Platform messages are asynchronous, so we initialize in an async method.
Future<void> setWallpaperFromFile() async {
setState(() {
_wallpaperFile = "Loading";
_wallpaperFile = 'Loading';
});
String result;
var file = await DefaultCacheManager().getSingleFile(
Expand All @@ -73,7 +73,7 @@ class _MyAppState extends State<MyApp> {
// Platform messages are asynchronous, so we initialize in an async method.
Future<void> setWallpaperFromFileWithCrop() async {
setState(() {
_wallpaperFileWithCrop = "Loading";
_wallpaperFileWithCrop = 'Loading';
});
String result;
var file = await DefaultCacheManager().getSingleFile(
Expand All @@ -99,10 +99,10 @@ class _MyAppState extends State<MyApp> {
// Platform messages are asynchronous, so we initialize in an async method.
Future<void> setWallpaperFromAsset() async {
setState(() {
_wallpaperAsset = "Loading";
_wallpaperAsset = 'Loading';
});
String result;
String assetPath = "assets/tmp1.jpg";
var assetPath = 'assets/tmp1.jpg';
// Platform messages may fail, so we use a try/catch PlatformException.
try {
result = await WallpaperManager.setWallpaperFromAsset(
Expand All @@ -124,10 +124,10 @@ class _MyAppState extends State<MyApp> {
// Platform messages are asynchronous, so we initialize in an async method.
Future<void> setWallpaperFromAssetWithCrop() async {
setState(() {
_wallpaperAssetWithCrop = "Loading";
_wallpaperAssetWithCrop = 'Loading';
});
String result;
String assetPath = "assets/tmp1.jpg";
var assetPath = 'assets/tmp1.jpg';
// Platform messages may fail, so we use a try/catch PlatformException.
try {
result = await WallpaperManager.setWallpaperFromAssetWithCrop(
Expand Down Expand Up @@ -155,37 +155,37 @@ class _MyAppState extends State<MyApp> {
),
body: Column(
children: <Widget>[
RaisedButton(
child: Text("Platform Version"),
ElevatedButton(
onPressed: initPlatformState,
child: Text('Platform Version'),
),
Center(
child: Text('Running on: $_platformVersion\n'),
),
RaisedButton(
child: Text("Set wallpaper from file"),
ElevatedButton(
onPressed: setWallpaperFromFile,
child: Text('Set wallpaper from file'),
),
Center(
child: Text('Wallpaper status: $_wallpaperFile\n'),
),
RaisedButton(
child: Text("Set wallpaper from file with crop"),
ElevatedButton(
onPressed: setWallpaperFromFileWithCrop,
child: Text('Set wallpaper from file with crop'),
),
Center(
child: Text('Wallpaper status: $_wallpaperFileWithCrop\n'),
),
RaisedButton(
child: Text("Set wallpaper from asset"),
ElevatedButton(
onPressed: setWallpaperFromAsset,
child: Text('Set wallpaper from asset'),
),
Center(
child: Text('Wallpaper status: $_wallpaperAsset\n'),
),
RaisedButton(
child: Text("Set wallpaper from asset with crop"),
ElevatedButton(
onPressed: setWallpaperFromAssetWithCrop,
child: Text('Set wallpaper from asset with crop'),
),
Center(
child: Text('Wallpaper status: $_wallpaperAssetWithCrop\n'),
Expand Down
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