Activity的不同生命周期中调用finish

基于Android8.0，本文仅记录不同生命周期中调用finish，Activity的生命周期执行顺序。

Demo应用包含两个Activity：ActivityA和ActivityB，如下流程是在ActivityB的不同生命周期中调用finish函数。

目录

1.onCreate中调用finish

2.onStart中调用finish

3.onResume中调用finish

4. onPause中调用finish

5. onStop中调用finish

6. onDestroy中调用finish

7.onRestart中调用finish

8.onSaveInstanceState中调用finish

---

1.onCreate中调用finish

• 启动ActivityA：

1. ActivityA.onCreate
2. ActivityA.onStart
3. ActivityA.onResume

• ActivityA中启动ActivityB：

1. ActivityA.onPause
2. ActivityB.onCreate
3. ActivityA.onResume
4. ActivityB.onDestroy

2.onStart中调用finish

• 启动ActivityA：

1. ActivityA.onCreate
2. ActivityA.onStart
3. ActivityA.onResume

• ActivityA中启动ActivityB：

1. ActivityA.onPause
2. ActivityB.onCreate
3. ActivityB.onStart
4. ActivityA.onResume
5. ActivityB.onStop
6. ActivityB.onDestroy

3.onResume中调用finish

• 启动ActivityA

1. ActivityA.onCreate
2. ActivityA.onStart
3. ActivityA.onResume

• ActivityA中启动ActivityB

1. ActivityA.onPause
2. ActivityB.onCreate
3. ActivityB.onStart
4. ActivityB.onResume
5. ActivityB.onPause
6. ActivityA.onResume
7. ActivityB.onStop
8. ActivityB.onDestroy

4. onPause中调用finish

• 启动Activity

1. ActivityA.onCreate
2. ActivityA.onStart
3. ActivityA.onResume

• ActivityA中启动ActivityB

1. ActivityA.onPause
2. ActivityB.onCreate
3. ActivityB.onStart
4. ActivityB.onResume
5. ActivityA.onSaveInstanceState
6. ActivityA.onStop

• 点击Home键

1. ActivityB.onPause
2. ActivityB.onStop
3. ActivityB.onDestroy

5. onStop中调用finish

• 启动Activity

1. ActivityA.onCreate
2. ActivityA.onStart
3. ActivityA.onResume

• ActivityA中启动ActivityB

1. ​​​​​​​​​​​​​​ActivityA.onPause
2. ActivityB.onCreate
3. ActivityB.onStart
4. ActivityB.onResume
5. ActivityA.onSaveInstanceState
6. ActivityA.onStop​​​​​​​

• 点击Home键

1. ActivityB.onPause
2. ActivityB.onSaveInstanceState
3. ActivityB.onStop
4. ActivityB.onDestroy

6. onDestroy中调用finish

• 启动ActivityA

1. ​​​​​​​​​​​​​​​​​​​​​ActivityA.onCreate
2. ActivityA.onStart
3. ActivityA.onResume

• ActivityA中启动ActivityB

1. ​​​​​​​​​​​​​​​​​​​​​ActivityA.onPause
2. ActivityB.onCreate
3. ActivityB.onStart
4. ActivityB.onResume
5. ActivityA.onSaveInstanceState
6. ActivityA.onStop​​​​​​​

• 点击Home键

1. ​​​​​​​ActivityB.onPause
2. ActivityB.onSaveInstanceState
3. ActivityB.onStop

• 重新进入ActivityB

1. ​​​​​​​ActivityB.onRestart
2. ActivityB.onStart
3. ActivityB.onResume

• 点击Back键

1. ​​​​​​​ActivityB.onPause
2. ActivityA.onRestart
3. ActivityA.onStart
4. ActivityA.onResume
5. ActivityB.onStop
6. ActivityB.onDestroy

7.onRestart中调用finish

• 启动ActivityA

1. ​​​​​​​​​​​​​​​​​​​​​ActivityA.onCreate
2. ActivityA.onStart
3. ActivityA.onResume

• A中启动ActivityB

1. ​​​​​​​​​​​​​​​​​​​​​ActivityA.onPause
2. ActivityB.onCreate
3. ActivityB.onStart
4. ActivityB.onResume
5. ActivityA.onSaveInstanceState
6. ActivityA.onStop​​​​​​​

• 点击home键

1. ​​​​​​​ActivityB.onPause
2. ActivityB.onSaveInstanceState
3. ActivityB.onStop

• 重新进入B

1. ActivityB.onRestart
2. ActivityB.onStart
3. ActivityB.onResume
4. ActivityB.onPause
5. ActivityA.onRestart
6. ActivityA.onStart
7. ActivityA.onResume
8. ActivityB.onStop
9. ActivityB.onDestroy

8.onSaveInstanceState中调用finish

• 启动ActivityA

1. ​​​​​​​​​​​​​​​​​​​​​ActivityA.onCreate
2. ActivityA.onStart
3. ActivityA.onResume

• A中启动ActivityB

1. ​​​​​​​​​​​​​​​​​​​​​ActivityA.onPause
2. ActivityB.onCreate
3. ActivityB.onStart
4. ActivityB.onResume
5. ActivityA.onSaveInstanceState
6. ActivityA.onStop​​​​​​​

• 点击home键

1. ​​​​​​​ActivityB.onPause
2. ActivityB.onSaveInstanceState
3. ActivityB.onStop
4. ActivityB.onDestroy

• 重新进入应用

1. ​​​​​​​ActivityA.onRestart
2. ActivityA.onStart
3. ActivityA.onResume