Pause Labeling in QGIS?

Question

Is it possible to pause/stop labeling temporarily in QGIS like in Arcmap for all layers at once?

The label toolbar offers no solution.

Answer 1

QGIS 3.x

You could use the following code in the Python Console to create a button on the toolbar which toggles the labels for all vector layers:

action = QAction(QIcon(""), "Turn labels" + "\n" + "ON/OFF", iface.mainWindow())
action.setCheckable(True)
iface.addToolBarIcon(action)

def label_control():
    for layer in QgsProject.instance().mapLayers().values():
        if layer.type() == QgsMapLayer.VectorLayer:
            if action.isChecked() == True:
                layer.setLabelsEnabled(True)
            else:
                layer.setLabelsEnabled(False)
        layer.triggerRepaint()

action.triggered.connect(label_control)
# Uncomment line below if you want to remove the icon yourself,
# otherwise it will be removed automatically when you restart QGIS
iface.removeToolBarIcon(action)

Code was based on the question: How to turn on/off all labels of all layers in QGIS.

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QGIS 2.18.x

You can use the Deactivate/Active Labels plugin which has a button to switch on/off labels for all layers: