Question

我有4个edittext，输入类型为numberPassword，每个最大长度为1.一旦输入数字，我就会以编程方式将焦点更改为下一个字段。我希望一旦焦点改变到下一个字段就会掩盖数字，但是当我在3时然后只有1被掩盖或者当我在4然后3和2时，发生的事情是不可预测的。被掩盖但不是1，有时没有一个被掩盖，但是当我手动地专注于任何场地时它会被掩盖。我希望在焦点更改为下一个字段时也能保持一致性，应该屏蔽最后一个字段。

Xml布局：

 <android.support.constraint.ConstraintLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="32dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView3"
        tools:layout_constraintLeft_creator="1"
        tools:layout_constraintRight_creator="1">

               <EditText
            android:id="@+id/et_mpin_1"
            android:layout_width="51dp"
            android:layout_height="44dp"
            android:ems="10"
            android:gravity="center_horizontal"
            android:inputType="numberPassword"
            android:maxLength="1"
            android:maxLines="1"
            android:imeOptions="actionNext"
            android:focusableInTouchMode="true"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            tools:layout_constraintLeft_creator="1"
            tools:layout_constraintTop_creator="1">
            <requestFocus />
        </EditText>

        <EditText
            android:id="@+id/et_mpin_2"
            android:layout_width="51dp"
            android:layout_height="0dp"
            android:layout_marginStart="8dp"
            android:ems="10"
            android:gravity="center_horizontal"
            android:inputType="numberPassword"
            android:maxLength="1"
            android:maxLines="1"
            android:imeOptions="actionNext"
            app:layout_constraintBottom_toBottomOf="@+id/et_mpin_1"
            app:layout_constraintLeft_toRightOf="@+id/et_mpin_1"
            app:layout_constraintTop_toTopOf="@+id/et_mpin_1"
            app:layout_constraintVertical_bias="0.0"
            tools:layout_constraintBottom_creator="1"
            tools:layout_constraintTop_creator="1" />

        <EditText
            android:id="@+id/et_mpin_4"
            android:layout_width="51dp"
            android:layout_height="0dp"
            android:layout_marginStart="8dp"
            android:ems="10"
            android:gravity="center_horizontal"
            android:inputType="numberPassword"
            android:maxLength="1"
            android:maxLines="1"
            android:imeOptions="actionDone"
            app:layout_constraintBottom_toBottomOf="@+id/et_mpin_1"
            app:layout_constraintLeft_toRightOf="@+id/et_mpin_3"
            app:layout_constraintTop_toTopOf="@+id/et_mpin_1"
            app:layout_constraintVertical_bias="0.0"
            tools:layout_constraintBottom_creator="1"
            tools:layout_constraintTop_creator="1" />

        <EditText
            android:id="@+id/et_mpin_3"
            android:layout_width="51dp"
            android:layout_height="0dp"
            android:layout_marginEnd="59dp"
            android:layout_marginStart="59dp"
            android:ems="10"
            android:gravity="center_horizontal"
            android:inputType="numberPassword"
            android:maxLength="1"
            android:maxLines="1"
            android:imeOptions="actionNext"
            app:layout_constraintBottom_toBottomOf="@+id/et_mpin_1"
            app:layout_constraintLeft_toLeftOf="@+id/et_mpin_2"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="@+id/et_mpin_1"
            app:layout_constraintVertical_bias="1.0"
            tools:layout_constraintBottom_creator="1"
            tools:layout_constraintLeft_creator="1"
            tools:layout_constraintRight_creator="1"
            tools:layout_constraintTop_creator="1" />
    </android.support.constraint.ConstraintLayout>

Java代码：

et_mpin1.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
//                et_mpin1.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD);
//                et_mpin1.setTransformationMethod(PasswordTransformationMethod.getInstance());
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                // checking before only because for max lenght 1 start is always going to be 0
                if (before == 0) {

                    et_mpin2.requestFocus();
                }

            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });
        et_mpin2.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) {
                // checking before only because for max lenght 1 start is always going to be 0
                if (before == 0) {
                    et_mpin3.requestFocus();
                } else {
                    et_mpin1.requestFocus();
                }
            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });
        et_mpin3.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) {
                // checking before only because for max lenght 1 start is always going to be 0
                if (before == 0) {
                    et_mpin4.requestFocus();
                } else {
                    et_mpin2.requestFocus();
                }
            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });
        et_mpin4.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) {
                // checking before only because for max lenght 1 start is always going to be 0
                if (before == 0) {
                    InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(getContext().INPUT_METHOD_SERVICE);
                    imm.hideSoftInputFromWindow(et_mpin4.getWindowToken(), 0);
                } else {
                    et_mpin3.requestFocus();
                }
            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });

Answer 1

强行隐藏密码

android.provider.Settings.System.putInt(this.getContentResolver(),android.provider.Settings.System.TEXT_SHOW_PASSWORD, 0);

注意：它不会显示任何字符，直接DOT将是在您的视图中显示没有任何延迟。

Editext输入类型表现得很奇怪

1 个答案: