Android按钮长文本换行失效求助：使用
无效，附截图

Hey there! I’ve dealt with this exact frustration before—trying to get line breaks in button text using 
 in your strings.xml only to see it show up as a single line. Let’s walk through the reliable fixes that’ll get your button text wrapping properly:

• First, double-check your strings.xml syntax
  Make sure your string is defined correctly without extra spaces or formatting issues. It should look like this:

  <string name="multi_line_btn">First Line&#10;Second Line</string>
  

  Avoid adding spaces around 
 unless you want extra spacing between lines.

• Enable multi-line support in your Button’s layout attributes
  By default, Android Buttons are set to single-line display. Add these attributes to your Button in the layout XML to allow wrapping:

  <Button
      android:id="@+id/my_button"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="@string/multi_line_btn"
      android:singleLine="false"
      android:maxLines="2" <!-- Adjust to the number of lines you need -->
      android:gravity="center" <!-- Centers text vertically/horizontally -->
      />
  

  The android:singleLine="false" is the critical one here—it tells the system not to truncate text to a single line.

• If layout settings still fail, set the text programmatically
  Sometimes referencing the string directly in the layout doesn’t trigger the line break correctly. Try setting the text in your Activity/Fragment code instead:

  // Kotlin
  val myButton = findViewById<Button>(R.id.my_button)
  myButton.text = getString(R.string.multi_line_btn)
  

  // Java
  Button myButton = findViewById(R.id.my_button);
  myButton.setText(getString(R.string.multi_line_btn));
  

• Check your Button’s width
  If your Button uses android:layout_width="wrap_content", it might not have enough horizontal space to wrap the text. Switch to match_parent or set a fixed width to give the text room to break into multiple lines.

These steps should resolve the issue 9 times out of 10—they’ve worked for me and countless other Android devs facing the same problem.

内容的提问来源于stack exchange，提问作者Satvik Sabharwal