Android 评论输入框弹窗+软键盘自动弹起

需求是输入框和软键盘一起弹出，效果图如下：

可以使用Dialog 的形式，因为Dialog中如果有输入框的话在弹出软键盘后会将弹窗顶起，这样就实现了这个效果：
本次使用DialogFragment 可以方便管理Dialog的生命周期

代码如下：

public class InputDialogForFeedBack extends DialogFragment {
    private Dialog dialog;
    private EditText editText;
    private View contentView;
    private Handler handler = new Handler();
    private IInputFinishCallback callback;
    private TextView cancel;
    private TextView submit;
    private TextView textNumber;
    public interface IInputFinishCallback{
        void sendStr(String inputStr);
    }

    public InputDialogForFeedBack(IInputFinishCallback callback) {
        this.callback = callback;
    }

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


    }

    @NonNull
    @Override
    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
        dialog = new Dialog(getActivity(),R.style.Dialog_NoTitle);
        initView();
        setDialgParms();
        initEvent();
        return dialog;

    }

    private void initEvent() {
        submit.setOnClickListener(v -> {
            String trim = editText.getText().toString().trim();
            if (!TextUtils.isEmpty(trim) && trim.length() <= 200){

                callback.sendStr(trim);
                dialog.dismiss();
            }else {
                ToastUtils.showSmallCenter("输入为空");
            }
        });
        cancel.setOnClickListener(v -> {
            dialog.dismiss();
        });
        editText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            }

            @Override
            public void afterTextChanged(Editable s) {
                String s1 = s.toString();
                if (!TextUtils.isEmpty(s1)){
                    if (s1.length() > 200){
                        ToastUtils.showSmallCenter("不能超过200个字符");
                        return;
                    }
                    textNumber.setText(s1.length()+"/200");
                }
            }
        });
        dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
            public InputMethodManager mInputMethodManager;

            @Override
            public void onDismiss(DialogInterface dialog) {
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        hideSoftkeyboard();
                    }
                }, 200);

            }
        });
    }

    private void setDialgParms() {
        Window window = dialog.getWindow();
        WindowManager.LayoutParams wml = window.getAttributes();
        DisplayMetrics dm = new DisplayMetrics();
        getActivity().getWindowManager().getDefaultDisplay().getMetrics(dm);

        wml.width = dm.widthPixels;
        wml.gravity = Gravity.BOTTOM;
        window.setAttributes(wml);
        editText.setFocusable(true);
        editText.setFocusableInTouchMode(true);
    }

    private void initView() {
        contentView = LayoutInflater.from(getContext()).inflate(R.layout.input_feed_back_dialog_layout,null);
        editText = contentView.findViewById(R.id.dialog_input_et);
        cancel = contentView.findViewById(R.id.dialog_cancel_tv);
        submit = contentView.findViewById(R.id.dialog_submit_tv);
        textNumber = contentView.findViewById(R.id.dialog_text_number_tv);
        dialog.setContentView(contentView);
    }


    public static void showKeyboard(View view) {
        InputMethodManager imm = (InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
        if (imm != null) {
            view.requestFocus();
            imm.showSoftInput(view, 0);
        }
    }

    public void hideSoftkeyboard() {
        try {
            ((InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE))
                    .hideSoftInputFromWindow(getActivity().getCurrentFocus().getWindowToken(),
                            InputMethodManager.HIDE_NOT_ALWAYS);
        } catch (NullPointerException e) {

        }
    }

    @Override
    public void onResume() {
        super.onResume();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                showKeyboard(editText);
            }
        },300);
    }



    @Override
    public void onDestroy() {
        super.onDestroy();
        if (dialog != null){
            dialog.dismiss();
            dialog = null;
        }
        if (callback != null){
            callback = null;
        }
        if (handler != null){

            handler.removeCallbacksAndMessages(null);
            handler = null;
        }
    }
}

使用的话很简单

 InputDialogForFeedBack dialog = new InputDialogForFeedBack(new InputDialogForFeedBack.IInputFinishCallback() {
                @Override
                public void sendStr(String inputStr) {

                   //TODO 提交反馈信息



                }
            });
            dialog.showNow(fragmentManager,"input");

附：弹窗的样式代码

<style name="Dialog.NoTitle" parent="Theme.AppCompat.Dialog">
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowFullscreen">true</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowAnimationStyle">@style/AnimationPicker</item>
    </style>

本文地址：https://blog.csdn.net/sinat_35670989/article/details/110550133