index.uts

import Color from "android.graphics.Color";
import TextView from "android.widget.TextView";
import FrameLayout from "android.widget.FrameLayout";
import ViewGroup from "android.view.ViewGroup";
import Gravity from "android.view.Gravity";
import Runnable from 'java.lang.Runnable';
import MediaPlayer from 'android.media.MediaPlayer';

import logo from "../../static/logo.png";

import {
    onAppActivityDestroy,
    onAppActivityPause,
    onAppActivityResume,
    onAppActivityBack,
	getUniActivity,
	getAppContext
} from "io.dcloud.uts.android";


/**
 * 定时任务参数封装
 */
type TimerOptions = {
	/**
	 * 定时任务开始的回调
	 * @res 回调参数
	 */
	start: (res: string) => void;
	/**
	* 定时任务执行的回调
	* @res 回调参数
	*/
	work: (res: string) => void;
};


/**
 * 执行延时任务
 */
export function doTimerTask(opts:TimerOptions) {
	opts.start('doTimerTask start');
	setTimeout(function() {
		opts.work("doTimerTask work");
	}, 2000);
  
  return { name: "doTimerTask" };
}

/**
 * 执行周期任务
 */
export function doIntervalTask(opts:TimerOptions) {
	
	let taskRet = setInterval(function() {
		opts.work("doIntervalTask work");
	}, 2000);
	opts.start('doIntervalTask start');
  
  return { name: "doIntervalTask",taskId:taskRet};
}

/**
 * 清除周期任务
 */
export function clearIntervalTask(taskId:number) {
	
	clearInterval(taskId);
	return { name: "clearIntervalTask"};
}


/**
 * 实现一个添加view的 Runnable类
 * 用法说明：https://uniapp.dcloud.net.cn/plugin/uts-plugin.html#%E5%8C%BF%E5%90%8D%E5%86%85%E9%83%A8%E7%B1%BB
 */
class AddUIRunnable extends Runnable {

    override run():void {
		
        let textView = new TextView(getUniActivity())
        textView.setText("HELLO WORLD");
        textView.textSize = 30.0.toFloat();
        textView.setBackgroundColor(Color.RED)
        textView.setTag("helloText")
        textView.setGravity(Gravity.CENTER)

        let decorView = getUniActivity()!.window.decorView;


        let frameContent = decorView.findViewById<FrameLayout>(android.R.id.content)
        let layoutParam = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT);
        layoutParam.topMargin = 200;

        frameContent.addView(textView,layoutParam)

    }
};

/**
 * 实现一个移除view的 Runnable类
 * 用法说明：https://uniapp.dcloud.net.cn/plugin/uts-plugin.html#%E5%8C%BF%E5%90%8D%E5%86%85%E9%83%A8%E7%B1%BB
 */
class RemoveUIRunnable extends Runnable {

    override run():void {

        let decorView = getUniActivity()!.getWindow().getDecorView();
        let frameContent = decorView.findViewById<FrameLayout>(android.R.id.content)
		
		let targetTV = frameContent.findViewWithTag<TextView>("helloText")
		frameContent.removeView(targetTV)

    }
};

/**
 * 实现添加view实例至decorview
 * 
 */
export function addViewToDecorView() {
    let uiRunable = new AddUIRunnable();
    getUniActivity()!.runOnUiThread(uiRunable)

}
/**
 * 实现从decorview上移除指定view
 */
export function removeViewToDecorView() {
    var uiRunable = new RemoveUIRunnable();
    getUniActivity()!.runOnUiThread(uiRunable)
}


/**
 * 引用资源路径
 */
export function getLogoPath(): string {
  return logo;
}

/**
 * 播放asset资源中的音频
 */
export function playAssetAudio() {
	
	let assetManager = getAppContext()!.getAssets();
	let afd = assetManager.openFd("free.mp3");
	let mediaPlayer = new MediaPlayer();
	mediaPlayer.setDataSource(afd.getFileDescriptor(),afd.getStartOffset(), afd.getLength());
	mediaPlayer.prepare();
	mediaPlayer.start();
	
}


/**
 * 初始化应用生命周期监听
 * 
 */
export function initAppLifecycle(onLifecycleChange: (event:string) => void) {

	/**
	 * activity 销毁生命周期回调
	 * 说明文档:https://uniapp.dcloud.net.cn/plugin/uts-plugin.html#onappactivitydestroy
	 */
    onAppActivityDestroy(() => {
		let eventName = "onAppActivityDestroy - " + Date.now();
		onLifecycleChange(eventName);
        console.log(eventName);
    });
	/**
	 * activity 失去焦点生命周期回调
	 * 说明文档:https://uniapp.dcloud.net.cn/plugin/uts-plugin.html#onappactivitypause
	 */
    onAppActivityPause(() => {
		let eventName = "onAppActivityPause - " + Date.now();
		onLifecycleChange(eventName);
        console.log(eventName);
    });
	/**
	 * activity 得到焦点的周期回调
	 * 说明文档:https://uniapp.dcloud.net.cn/plugin/uts-plugin.html#onappactivityresume
	 */
    onAppActivityResume(() => {
		let eventName = "onAppActivityResume - " + Date.now();
		onLifecycleChange(eventName);
        console.log(eventName);
    });
	/**
	 * activity 回退物理按键事件回调
	 * 说明文档:https://uniapp.dcloud.net.cn/plugin/uts-plugin.html#onappactivityback
	 */
    onAppActivityBack(() => {
		let eventName = "onAppActivityBack - " + Date.now();
		onLifecycleChange(eventName);
        console.log(eventName);
    });

}