在有些場景中游戲是需要從前臺切換到後臺運行的，那麼在開發過程中需要如何去實現這個功能呢，爲了幫助大家，下面就給大家介紹下退後臺的方法，不會的就一起來看看吧。
//simulateSwitchToBackground.cs
usingUnityEngine;
usingSystem.Collections;
usingSystem.Collections.Generic;
publicclass simulateSwitchToBackground : MonoBehaviour {
voidsendApplicationPauseMessage(boolisPause){
Transform[] transList= GameObject.FindObjectsOfType();
for(inti = 0; i < transList.Length; i++) {
Transform trans = transList [i];
//Note that messages will not be sent to inactive objects
trans.SendMessage ("OnApplicationPause",isPause,SendMessageOptions.DontRequireReceiver);
}
}
voidsendApplicationFocusMessage(boolisFocus){
Transform[] transList= GameObject.FindObjectsOfType();
for(inti = 0; i < transList.Length; i++) {
Transform trans = transList [i];
//Note that messages will not be sent to inactive objects
trans.SendMessage ("OnApplicationFocus",isFocus,SendMessageOptions.DontRequireReceiver);
}
}
publicvoid sendEnterBackgroundMessage(){
sendApplicationPauseMessage (true);
sendApplicationFocusMessage (false);
}
publicvoid sendEnterFoegroundMessage(){
sendApplicationFocusMessage (true);
sendApplicationPauseMessage (false);
}
}
//simulateSwitchToBackgroundEditor.cs
usingUnityEngine;
usingSystem.Collections;
usingUnityEditor;
[CustomEditor(typeof(simulateSwitchToBackground))]
publicclass simulateSwitchToBackgroundEditor : Editor
{
voidOnEnable(){
}
publicoverride void OnInspectorGUI()
{
DrawDefaultInspector();
serializedObject.Update ();
serializedObject.ApplyModifiedProperties ();//now varibles in script have been updated
if(GUILayout.Button ("send enter background message")) {
if(Application.isPlaying) {
((simulateSwitchToBackground)target).sendEnterBackgroundMessage ();
}
}
if(GUILayout.Button ("send enter foeground message")) {
if(Application.isPlaying) {
((simulateSwitchToBackground)target).sendEnterFoegroundMessage ();
}
}
}
}
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把simulateSwitchToBackground.cs掛到場景中的一個gameObject上，其inspector面板如下：
在遊戲運行過程中點“send endter background message”按鈕，即模擬遊戲退到後臺。再點"send enter foeground message"按鈕，模擬遊戲從後臺切回到前臺。