I was surfing in Android code because I wanted to see what is into Activity.finish() method.
I just wanted to have the confirmation that in Activity.finish()
there would be a call to onDestroy()
method.
But what I found in this method (and in many others) was:
public void finish() {
throw new RuntimeException("Stub!");
}
So WHERE Can I find the code that really destroys the Activity? Thanks!
I don't know where you looked, but the code for finish()
is this
/**
* Call this when your activity is done and should be closed. The
* ActivityResult is propagated back to whoever launched you via
* onActivityResult().
*/
public void finish() {
finish(DONT_FINISH_TASK_WITH_ACTIVITY);
}
which calls the private implementation
/**
* Finishes the current activity and specifies whether to remove the task associated with this
* activity.
*/
private void finish(int finishTask) {
if (mParent == null) {
int resultCode;
Intent resultData;
synchronized (this) {
resultCode = mResultCode;
resultData = mResultData;
}
if (false) Log.v(TAG, "Finishing self: token=" + mToken);
try {
if (resultData != null) {
resultData.prepareToLeaveProcess(this);
}
if (ActivityManagerNative.getDefault()
.finishActivity(mToken, resultCode, resultData, finishTask)) {
mFinished = true;
}
} catch (RemoteException e) {
// Empty
}
} else {
mParent.finishFromChild(this);
}
}
Important here is ActivityManagerNative.getDefault().finishActivity
which you can find at line 3359 in this file https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/app/ActivityManagerNative.java
If you want to dive deeper, you can just follow the trail.
您正在检入.class而不是.java文件。
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