google.maps.event.addListener(map, 'tilesloaded', function() {
    // 地图图块加载完成时触发
    console.log('地图图块已加载完成');
});

google.maps.event.addListener(map, 'idle', function() {
    // 地图空闲状态(包括初始加载完成和拖动/缩放后停止)
    console.log('地图处于空闲状态，绘制完成');
});

var marker = new google.maps.Marker({
    position: myLatLng,
    map: map,
    title: 'Hello World!'
});

google.maps.event.addListener(marker, 'position_changed', function() {
    // 标记位置变化后触发
});

google.maps.event.addListener(marker, 'click', function() {
    // 标记被点击时触发
});

var drawingManager = new google.maps.drawing.DrawingManager({
    drawingMode: google.maps.drawing.OverlayType.POLYGON,
    drawingControl: true,
    drawingControlOptions: {
        position: google.maps.ControlPosition.TOP_CENTER,
        drawingModes: [
            google.maps.drawing.OverlayType.POLYGON
        ]
    }
});
drawingManager.setMap(map);

// 多边形绘制完成事件
google.maps.event.addListener(drawingManager, 'polygoncomplete', function(polygon) {
    console.log('多边形绘制完成', polygon.getPath().getArray());
});

// 折线绘制完成事件
google.maps.event.addListener(drawingManager, 'polylinecomplete', function(polyline) {
    console.log('折线绘制完成', polyline.getPath().getArray());
});

// 矩形绘制完成事件
google.maps.event.addListener(drawingManager, 'rectanglecomplete', function(rectangle) {
    console.log('矩形绘制完成', rectangle.getBounds());
});

// 圆形绘制完成事件
google.maps.event.addListener(drawingManager, 'circlecomplete', function(circle) {
    console.log('圆形绘制完成', circle.getCenter(), circle.getRadius());
});

// 标记绘制完成事件
google.maps.event.addListener(drawingManager, 'markercomplete', function(marker) {
    console.log('标记绘制完成', marker.getPosition());
});