android开发分享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>