app前后台切换

"ui";
ui.layout(
  <vertical>
    <button>牙叔教程</button>
  </vertical>
);
setTimeout(function () {
  activity.moveTaskToBack(true);
}, 2000);
setTimeout(function () {
  let manager = context.getSystemService(context.ACTIVITY_SERVICE);
  let recentTasks = manager.getRunningTasks(java.lang.Integer.MAX_VALUE);
  for (let i = 0; i < recentTasks.size(); i++) {
    log("xk", "  " + recentTasks.get(i).baseActivity.toShortString() + "   ID: " + recentTasks.get(i).id + "");
    log("xk", "@@@@  " + recentTasks.get(i).baseActivity.toShortString());
    // bring to front
    if (
      recentTasks
        .get(i)
        .baseActivity.toShortString()
        .indexOf("org.autojs.autojspro/org.autojs.autojs.ui.main.MainActivity") > -1
    ) {
      manager.moveTaskToFront(recentTasks.get(i).id, android.app.ActivityManager.MOVE_TASK_WITH_HOME);
    }
  }
}, 4000);

        // 点击返回回到桌面，不退出程序
        ui.emitter.on("back_pressed", function (e) {
            e.consumed = true;
            var i = app.intent({
                action: Intent.ACTION_MAIN,
                category: Intent.CATEGORY_HOME,
                flags: ['ACTIVITY_NEW_TASK']
            });
            context.startActivity(i);
        });