Question

I am putting focus on a view but when I change orientation the focus is lost from that view . does onConfigurationChanged() handles focus? or i need to explicitly set it and if yes then how can I set focus ? I need to keep track of current focusing view .how to do that?

Answer 1

• 在你的活动中,克服依赖国家和居住国的方法。那么,你就能够追踪任何观点的焦点,把观点的识别资料放在光辉的国家方法中,将其保留到联邦上。然后,在“RestoreInstanceState”方法中,你只是 gr住了该身份证,并发现了该身份证。你们甚至不需要去做。那么,你只是要求把这一观点作为重点。它希望:

@Override
protected void onSaveInstanceState(Bundle outState) {       
    int viewId = this.getCurrentFocus().getId();
    outState.putInt("hasFocus", viewId);

    super.onSaveInstanceState(outState);
}

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

    int viewId = savedInstanceState.getInt("hasFocus");
    View view = findViewById(viewId);
    view.requestFocus();        
}

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