计算我的android应用程序打开的次数并处理屏幕方向

详细地说，我正在计算我的应用程序在SharedReferences界面的帮助下打开的次数，并在屏幕上显示该次数，但每当我改变方向时，该次数仍会增加

我不想在纵向上粘贴布局，我希望我的应用程序可以使用两个方向。onCreate的代码如下所示：

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.d(TAG, "onCreate!");

    mPrefs = getPreferences(MODE_PRIVATE);

    int count = mPrefs.getInt(COUNT, 0);

    count = count + 1;
    Editor editor = mPrefs.edit();
    editor.putInt(COUNT, count);
    editor.commit();

    mTextView = new TextView(this);
    mTextView.setTextSize(40);
    mTextView.setText("Count: " + count);
    Log.d(TAG, "Count is " + count);
    setContentView(mTextView);
    // setContentView(R.layout.activity_main);

    mTextView.setOnClickListener(this);

}

---

每当设备方向更改时，都会调用OnCreate。请尝试将相关代码放在OnStart中。

只有在未通过savedInstanceState保存时，才能增加计数，因为方向更改时会调用OnSaveInstanceState

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    if (savedInstanceState != null) {
        if (savedInstanceState.containsKey(KEY)){
            count = savedInstanceState.getInt(KEY);
        } 
    } else {
        count = mPrefs.getInt(COUNT, 0);
        count += 1;
        Editor editor = mPrefs.edit();
        editor.putInt(COUNT, count);
        editor.commit();
    }
}

    @Override
    protected void onSaveInstanceState (Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt(KEY, count);
    }