如何在 Android 中的 TextInputEditText 中顶部启动提示文本？

Question

I need [top|start] hint text an TextInputEditText.. I use android:gravity="top|start" hint text still in center, but the text content is correct (top start)

        <com.google.android.material.textfield.TextInputLayout
            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:counterEnabled="true"
            app:counterMaxLength="200">
            <com.google.android.material.textfield.TextInputEditText
                android:text="@={textProg.textProg.text}"
                android:hint="Hint Text"
                android:layout_width="match_parent"
                android:layout_height="100dp"
                android:inputType="textMultiLine"
                android:gravity="top|start"
                android:maxLength="200"
                android:textColor="@drawable/edit_text_color"/>
        </com.google.android.material.textfield.TextInputLayout>

Answer 1

i don't know why your code doesn't work with you it work with me , but you can try this i hope it work .

   <com.google.android.material.textfield.TextInputLayout
                    style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="16dp"
                    app:counterEnabled="true"
                    app:counterMaxLength="200">
                <com.google.android.material.textfield.TextInputEditText
                        android:text="@={textProg.textProg.text}"
                        android:hint="Hint Text"
                        android:layout_width="match_parent"
                        android:layout_height="100dp"
                        android:inputType="textMultiLine"
                        android:ellipsize="start"
                        android:gravity="top"
                        android:maxLength="200"
                        />
            </com.google.android.material.textfield.TextInputLayout>

Answer 2

为什么你不尝试添加这个android:ellipsize="top|start"

Answer 3

Probably it's an issue related to material design library. I have checked with different version and found different scenarios for same layout . Among them below version gives me the result that you want to achieve.

implementation 'com.google.android.material:material:1.2.0-alpha01'

Output: