如何以编程方式使用OutlineBox创建TextInputLayout

问题描述

我想使用Widget.MaterialComponents.TextInputLayout.OutlinedBox样式创建TextInputLayout.我尝试了许多方法，但无法获得所需的结果.这是我的代码.

I want to create TextInputLayout with Widget.MaterialComponents.TextInputLayout.OutlinedBox style. I tried many ways but couldn't get the required result.Here is my code.

TextInputLayout textInputLayout = new TextInputLayout(getActivity(),null,R.style.Widget_MaterialComponents_TextInputLayout_OutlinedBox);
textInputLayout.setHint("My Hint");
TextInputEditText editText = new TextInputEditText(textInputLayout.getContext());
textInputLayout.addView(editText);
parentView.addView(textInputLayout);

我也尝试过:

TextInputLayout textInputLayout = new TextInputLayout(getActivity(),null,TextInputLayout.BOX_BACKGROUND_OUTLINE);

我想创建这样的视图.

I want to create view like this .

推荐答案

更新

感谢@MikeM.

您需要使用 TextInputLayout.setBoxBackgroundMode() 方法以使用OutlineBox样式

You need to use TextInputLayout.setBoxBackgroundMode() method to use OutlineBox style

• 设置框背景的模式(填充，轮廓或无).

然后，您需要使用 常量

Then you need to use TextInputLayout.BOX_BACKGROUND_OUTLINE) Constants

示例代码

public class MainActivity extends AppCompatActivity {

    LinearLayout parentView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        parentView = findViewById(R.id.parentView);

        TextInputLayout emailTextInputLayout = new TextInputLayout(this, null, R.style.Widget_MaterialComponents_TextInputLayout_OutlinedBox);

        emailTextInputLayout.setHint("Please Enter Email Address");
        emailTextInputLayout.setBoxBackgroundMode(TextInputLayout.BOX_BACKGROUND_OUTLINE);
        emailTextInputLayout.setBoxCornerRadii(5, 5, 5, 5);
        TextInputEditText edtEmail = new TextInputEditText(emailTextInputLayout.getContext());
        emailTextInputLayout.addView(edtEmail);

        parentView.addView(emailTextInputLayout);


        TextInputLayout passTextInputLayout = new TextInputLayout(this, null, R.style.Widget_MaterialComponents_TextInputLayout_OutlinedBox);

        passTextInputLayout.setHint("Please Enter Password");
        passTextInputLayout.setBoxBackgroundMode(TextInputLayout.BOX_BACKGROUND_OUTLINE);
        passTextInputLayout.setBoxCornerRadii(5, 5, 5, 5);
        TextInputEditText edtPass = new TextInputEditText(passTextInputLayout.getContext());
        passTextInputLayout.addView(edtPass);

        parentView.addView(passTextInputLayout);


    }

}

输出

基于此答案: https://stackoverflow.com/questions/3246447/如何在Android中以编程方式设置样式属性

• 当前不支持动态样式更改.在创建视图之前，必须先设置样式(以XML格式).

这就是TextInputLayout不以编程方式接受设置轮廓框式样式的原因.

That's the reason that TextInputLayout does not programmatically accept setting the outline boxed style.

这是简单的解决方案:

您可以使用 LayoutInflater

You can use LayoutInflater

• 将布局XML文件实例化到其相应的View对象中.
• Instantiates a layout XML file into its corresponding View objects.

演示

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.TextInputLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/userIDTextInputLayout"
    style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="10dp">

    <android.support.design.widget.TextInputEditText
        android:id="@+id/userIDTextInputEditText"
        android:layout_width="match_parent"
        android:hint="Enter User Name"
        android:layout_height="wrap_content" />
</android.support.design.widget.TextInputLayout>

AndroidX(+ 用于Android的材料组件):

AndroidX (+Material Components for Android):

<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.textfield.TextInputLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/userIDTextInputLayout"
    style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="10dp">

    <com.google.android.material.textfield.TextInputEditText
        android:id="@+id/userIDTextInputEditText"
        android:layout_width="match_parent"
        android:hint="Enter User Name"
        android:layout_height="wrap_content" />
</com.google.android.material.textfield.TextInputLayout>

public class MainActivity extends AppCompatActivity {

    LinearLayout rootView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        rootView = findViewById(R.id.rootView);

        View view = LayoutInflater.from(this).inflate(R.layout.temp_layout, null);
        TextInputLayout userNameIDTextInputLayout=view.findViewById(R.id.userIDTextInputLayout);
        TextInputEditText userNameInputEditText = view.findViewById(R.id.userIDTextInputEditText);
        userNameIDTextInputLayout.setHint("Please Enter User Name");
        rootView.addView(view);
    }
}

输出

如果要从XML添加TextInputLayout，请查看以下答案:

If you want to add a TextInputLayout from XML, then please check out the following answer:

• 概述了材料设计中的编辑文本

如果要以编程方式添加5个以上的TextInputLayout，请考虑使用RecyclerView.查看以下答案:

If you want to add more than 5 TextInputLayouts programmatically, then please consider using a RecyclerView. Check out the following answers:

• 具有重复形式的动态形式
• 如何验证recyclerview适配器TextInputEditText来自片段?
• Dynamic form with repeating form
• How can I validate recyclerview adapter TextInputEditText from fragment?

希望这会有所帮助！

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