HarmonyOS鸿蒙Next中麻烦提供自定义相机和加图片裁剪代码示例

demo如下：

moudle.json 权限代码
"requestPermissions": [
{
"name": "ohos.permission.INTERNET",
"usedScene": {
"abilities": [
"EntryAbility"
],
"when": "always"
}
},
{
"name": "ohos.permission.MEDIA_LOCATION",
"reason": "$string:app_permission_MEDIA_LOCATION",
"usedScene": {
"abilities": [
"EntryAbility"
],
"when": "always"
}
},
{
"name": "ohos.permission.READ_MEDIA",
"reason": "$string:app_permission_READ_MEDIA",
"usedScene": {
"abilities": [
"EntryAbility"
],
"when": "always"
}
},
{
"name": "ohos.permission.WRITE_MEDIA",
"reason": "$string:app_permission_WRITE_MEDIA",
"usedScene": {
"abilities": [
"EntryAbility"
],
"when": "inuse"
}
}
]
entryability页面代码：
import { AbilityConstant, UIAbility, Want } from '@kit.AbilityKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { window } from '@kit.ArkUI';
import { ImageKnife } from '@ohos/imageknife'

export default class EntryAbility extends UIAbility {
onCreate(want, launchParam): void {
hilog.info(0x1314, 'ImageDemo', '%{public}s', 'Ability onCreate');
AppStorage.setOrCreate('bundleName',this.context.abilityInfo.bundleName)
}

onDestroy(): void {
hilog.info(0x1314, 'ImageDemo', '%{public}s', 'Ability onDestroy');
}

onWindowStageCreate(windowStage): void {
// Main window is created, set main page for this ability
hilog.info(0x1314, 'ImageDemo', '%{public}s', 'Ability onWindowStageCreate');

windowStage.loadContent('pages/Index', (err) => {
if (err.code) {
hilog.error(0x1314, 'ImageDemo', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
return;
}
hilog.info(0x1314, 'ImageDemo', 'Succeeded in loading the content.');
});

// 初始化全局ImageKnife
ImageKnife.with(this.context);
}

onWindowStageDestroy(): void {
// Main window is destroyed, release UI related resources
hilog.info(0x1314, 'ImageDemo', '%{public}s', 'Ability onWindowStageDestroy');
}

onForeground(): void {
// Ability has brought to foreground
hilog.info(0x1314, 'ImageDemo', '%{public}s', 'Ability onForeground');
}

onBackground(): void {
// Ability has back to background
hilog.info(0x1314, 'ImageDemo', '%{public}s', 'Ability onBackground');
}
}
ets下common文件夹下Constants代码1：
import { HashMap } from '@kit.ArkTS'
import { Tabar } from '../model/Tabar'

export const localImageResource: HashMap<number, ResourceStr> = new HashMap()
localImageResource.set(0, $r('app.media.jpgSample'))
localImageResource.set(1, $r('app.media.pngSample'))
localImageResource.set(2, $r('app.media.svgSample'))
localImageResource.set(3, $r('app.media.gifSample'))
localImageResource.set(4, $r('app.media.bmpSample'))
localImageResource.set(5, $r('app.media.webpSample'))

export const netImageResource: HashMap<number, ResourceStr> = new HashMap()
netImageResource.set(0, 'https://img-home.csdnimg.cn/images/20240327093300.jpg')
netImageResource.set(1, 'https://img-blog.csdnimg.cn/20191215043500229.png')
netImageResource.set(2, 'https://img13.360buyimg.com/n1/jfs/t1/220646/38/10395/30916/61d6e061E1a6d91c8/c0a9a67e726dd7a4.jpg.dpg')
netImageResource.set(3, 'https://gd-hbimg.huaban.com/e0a25a7cab0d7c2431978726971d61720732728a315ae-57EskW_fw658')
netImageResource.set(4, 'https://img-blog.csdn.net/20140514114029140')
netImageResource.set(5, 'https://hbimg.huabanimg.com/95a6d37a39aa0b70d48fa18dc7df8309e2e0e8e85571e-x4hhks_fw658/format/webp')

export const BUNDLE_NAME: string = 'com.harmonyos.image'

export const TAG: string = 'ImageDemo';

export const tabars: Array<Tabar> = [
{
"name": '裁剪',
"selectN": $r('app.media.ic_pc_cut'),
"selectY": $r('app.media.ic_pc_cut_select')
},
{
"name": '亮度',
"selectN": $r('app.media.ic_public_brightness'),
"selectY": $r('app.media.ic_public_brightness_filled')
},
{
"name": '对比度',
"selectN": $r('app.media.contrast_ratio'),
"selectY": $r('app.media.contrast_ratio_selected')
},
{
"name": '旋转',
"selectN": $r('app.media.ic_switch'),
"selectY": $r('app.media.ic_switch_selected')
}
]

export class Constants {
/**
* Title row width.
*/
static readonly TITLE_ROW_WEIGHT: string = '50%';

/**
* Layout full screen.
*/
static readonly LAYOUT_FULL_SCREEN: string = '100%';

/**
* Edit page height.
*/
static readonly EDIT_PAGE_HEIGHT: string = '26%';

/**
* Image show height.
*/
static readonly IMAGE_SHOW_HEIGHT: string = '68%';

/**
* Slider width.
*/
static readonly SLIDER_WIDTH: string = '80%';

/**
* Loading width and height.
*/
static readonly LOADING_WH: string = '30%';
/**
* Clock wise.
*/
static readonly CLOCK_WISE: number = 90;

/**
* Anti clock.
*/
static readonly ANTI_CLOCK: number = -90;

/**
* Tab menu width.
*/
static readonly TAB_MENU_WIDTH: number = 18;

/**
* Navigation height.
*/
static readonly NAVIGATION_HEIGHT: number = 56;

/**
* Adjust slider value.
*/
static readonly ADJUST_SLIDER_VALUE: number[] = [100, 100, 100];

/**
* Slider min.
*/
static readonly SLIDER_MIN: number = 1;

/**
* Slider step.
*/
static readonly SLIDER_MAX: number = 100;

/**
* Slider step.
*/
static readonly SLIDER_STEP: number = 1;

/**
* Pixel step.
*/
static readonly PIXEL_STEP: number = 4;

/**
* Decimal two.
*/
static readonly DECIMAL_TWO: number = 2;

/**
* Color level max.
*/
static readonly COLOR_LEVEL_MAX: number = 255;

/**
* Convert int.
*/
static readonly CONVERT_INT: number = 100;

/**
* Angle 60.
*/
static readonly ANGLE_60: number = 60;

/**
* Angle 120.
*/
static readonly ANGLE_120: number = 120;

/**
* Angle 240.
*/
static readonly ANGLE_240: number = 240;

/**
* Angle 300.
*/
static readonly ANGLE_360: number = 360;

/**
* Angle 360.
*/
static readonly MOD_2: number = 2;

/**
* Average height and width.
*/
static readonly AVERAGE_WEIGHT_WIDTH: number = 2;

/**
* Crop rate 4:3.
*/
static readonly CROP_RATE_4_3: number = 0.75;

/**
* Crop rate 16:9.
*/
static readonly CROP_RATE_9_16: number = 9 / 16;

/**
* Encode quality.
*/
static readonly ENCODE_QUALITY: number = 100;

/**
* Title space.
*/
static readonly TITLE_SPACE: number = 0;

/**
* Slider mode click.
*/
static readonly SLIDER_CLICK_MODE: number = 3;

/**
* Encode format.
*/
static readonly ENCODE_FORMAT: string = 'image/jpeg';

/**
* Encode file permission.
*/
static readonly ENCODE_FILE_PERMISSION: string = 'rw';

/**
* Brightness worker file.
*/
static readonly BRIGHTNESS_WORKER_FILE = 'entry/ets/workers/AdjustBrightnessWork.ts';

/**
* Brightness worker file.
*/
static readonly SATURATION_WORKER_FILE = 'entry/ets/workers/AdjustSaturationWork.ts';

/**
* Image name.
*/
static readonly IMAGE_PREFIX = 'image';

/**
* Image format.
*/
static readonly IMAGE_FORMAT = '.jpg';

/**
* Rawfile name.
*/
static readonly RAW_FILE_NAME = 'low.jpg';

/**
* Cache dir file name.
*/
static readonly RAW_FILE_NAME_TEST = 'low_test.jpg';

/**
* Free ratio.
*/
static readonly DEFAULT_RATIO: number = -1;

/**
* Ratio 1:1.
*/
static readonly RATIO_1_1: number = 1;

/**
* Ratio 16:9.
*/
static readonly RATIO_16_9: number[] = [16, 9];

/**
* Ratio 9:16.
*/
static readonly RATIO_9_16: number[] = [9, 16];

/**
* Ratio 4:3.
*/
static readonly RATIO_4_3: number[] = [4, 3];

/**
* Ratio 3:4.
*/
static readonly RATIO_3_4: number[] = [3, 4];

/**
* Ratio 3:2.
*/
static readonly RATIO_3_2: number[] = [3, 2];

/**
* Ratio 2:3.
*/
static readonly RATIO_2_3: number[] = [2, 3];

/**
* Screen display margin.
*/
static readonly SCREEN_DISPLAY_MARGIN: number = 15;

/**
* Double.
*/
static readonly DOUBLE: number = 2;

/**
* Edit screen can use scope.
*/
static readonly EDIT_SCREEN_USAGE: number = 0.68;

/**
* Title height.
*/
static readonly TITLE_HEIGHT: number = 56;

/**
* Screen manager key.
*/
static readonly APP_KEY_SCREEN_MANAGER: string = 'app_key_screen_manager';

/**
* Whether full screen.
*/
static readonly IS_FULL_SCREEN_KEY: string = 'isFullScreen';

/**
* Device type.
*/
static readonly DEFAULT_DEVICE_TYPE: string = 'phone';

/**
* Status bar color.
*/
static readonly STATUS_BAR_BACKGROUND_COLOR: string = '#F1F3F5';

/**
* Status bar text color.
*/
static readonly STATUS_BAR_CONTENT_COLOR: string = '#000000';

/**
* Navigation height.
*/
static readonly TOP_BAR_SIZE: number = 56;

/**
* Tool bar size.
*/
static readonly TOOL_BAR_SIZE: number = 72;

/**
* Time out.
*/
static readonly TIMEOUT: number = 50;

/**
* Rect line width inner.
*/
static readonly DEFAULT_LINE_WIDTH: number = 0.4;

/**
* Rect line width outer.
*/
static readonly DEFAULT_LINE_RECT_WIDTH: number = 0.8;

/**
* Rect Button line width.
*/
static readonly DEFAULT_BUTTON_WIDTH: number = 2.3;
/**
* Rect Button line padding.
*/
static readonly DEFAULT_BUTTON_PADDING: number = 1;

/**
* Rect Button line length.
*/
static readonly DEFAULT_BUTTON_LENGTH: number = 20;

/**
* Rect line color.
*/
static readonly DEFAULT_LINE_COLOR: string = '#80FFFFFF';

/**
* Rect Button line color outer.
*/
static readonly DEFAULT_RECT_LINE_COLOR: string = '#FFFFFFFF';

/**
* Rect Button line color.
*/
static readonly DEFAULT_BUTTON_COLOR: string = 'white';

/**
* Mask style.
*/
static readonly DEFAULT_MASK_STYLE: string = 'rgba(0, 0, 0, 0.3)';

/**
* Equality threshold.
*/
static readonly EQUALITY_THRESHOLD: number = 0.0001;

/**
* Min side length.
*/
static readonly DEFAULT_MIN_SIDE_LENGTH: number = 90;

/**
* Touch move identification range.
*/
static readonly DEFAULT_TOUCH_BOUND: number = 20;

/**
* Base scale value.
*/
static readonly BASE_SCALE_VALUE: number = 1.0;

/**
* Default image ratio.
*/
static readonly DEFAULT_IMAGE_RATIO: number = 1.0;

/**
* Rect min side length.
*/
static readonly DEFAULT_MIN_SIDE_LENGTH_EDIT: number = 32;

/**
* Default margin length.
*/
static readonly DEFAULT_MARGIN_LENGTH: number = 20;

/**
* Time out.
*/
static readonly DEFAULT_TIMEOUT_MILLISECOND_1000: number = 1000;

/**
* Default split fraction.
*/
static readonly DEFAULT_SPLIT_FRACTION: number = 3;
}