Android 隐藏输入弹框

InputMethodManager mImm;
        private Activity mContext;
        
        @Override
        protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_chat);
        mContext=this;
        this.mImm = (InputMethodManager) mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
        }

        private void dismissSoftInput() {
            if (mImm != null) {
                mImm.hideSoftInputFromWindow(ekBar.getEtChat().getWindowToken(), 0);
                mShowSoftInput = false;
            }
            try {
                Thread.sleep(200);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
      }

首次进入页面隐藏输入弹框
AndroidManifest.xml

<activity
            android:name="MainActivity"
            android:exported="true"
            android:screenOrientation="landscape"
            android:configChanges="keyboardHidden"
            android:windowSoftInputMode="adjustPan|stateHidden">