android – 按下主页键盘后没有隐藏

InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,
        InputMethodManager.HIDE_IMPLICIT_ONLY);

我使用以下代码来隐藏键盘getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);

隐藏键盘,和

也试过这个

InputMethodManager imm =(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(myEditText.getWindowToken(), 0);

但按下主页后.应用关闭,但键盘在屏幕上保持不变.

请指导我.我究竟做错了什么？

我把我的隐藏代码.
我把hide放在onDestroy(),onBackPressed()和onOptionsItemSelected(MenuItem item)抱歉我的代码格式化.

protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.mylayout);

    textTv=(EditText)findViewById(R.id.textview1);
    InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,
    InputMethodManager.HIDE_IMPLICIT_ONLY);

    if(getIntent().getExtras()!=null)
    {
        Bundle extra=getIntent().getExtras();
        if(extra!=null)
        {
            // code
        }
    }
}

public void onBackPressed() {
    // TODO Auto-generated method stub
    InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.hideSoftInputFromWindow(noteTv.getWindowToken(), 0);
    }

public boolean onOptionsItemSelected(MenuItem item) {
    // TODO Auto-generated method stub

    getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);

    switch (item.getItemId()) {
    case R.id.menu1:
    //code
    break;
    case R.id.menu2:
    //code
    break;

}

@Override
protected void onPause() {
    final InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.hideSoftInputFromWindow(noteTv.getWindowToken(), 0);
    super.onPause();
}