android打开关闭软键盘

public class ImmSolftManager {
private Activity activity;
InputMethodManager imm;
public ImmSolftManager(Activity activity){
    this.activity = activity;
    imm = (InputMethodManager)
            activity.getSystemService(Context.INPUT_METHOD_SERVICE);
}

public void showKeyboard(boolean isShow) {
    //当前获取到焦点的view
    View currentFocus = activity.getCurrentFocus();
    if (null == imm)
        return;

    if (isShow) {
        if (currentFocus != null) {
            //有焦点打开
            imm.showSoftInput(currentFocus, 0);
        } else {
            //无焦点打开
            imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
        }
    } else {
        if (currentFocus != null) {
            //有焦点关闭
            imm.hideSoftInputFromWindow(currentFocus.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
        } else {
            //无焦点关闭
            imm.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0);
        }
    }
}
}

原文链接：https://blog.csdn.net/qq_31914027/article/details/81607648