这是另一种可能的解决方案:

et.append("");

如果因为某种原因不管用，试试下面的方法:

et.setSelection(et.getText().length());

public class CustomEditText extends EditText {
    public CustomEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CustomEditText(Context context) {
        super(context);
    }

    public CustomEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }


    @Override
    protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
        super.onFocusChanged(focused, direction, previouslyFocusedRect);
        this.setSelection(this.getText().length());
    }

    @Override
    protected void onSelectionChanged(int selStart, int selEnd) {

    }
}

在XML文件中使用此CustomEditText，这将起作用。我已经测试过了，它对我很有效。

editText.accessibilityDelegate = object : View.AccessibilityDelegate() {
    override fun sendAccessibilityEvent(host: View?, eventType: Int) {
        super.sendAccessibilityEvent(host, eventType)
        if (eventType == TYPE_VIEW_TEXT_SELECTION_CHANGED) {
            editText.setSelection(editText.length())
        }
    }
}

如果您想将光标放置在EditText视图中文本的末尾

 EditText rename;
 String title = "title_goes_here";
 int counts = (int) title.length();
 rename.setSelection(counts);
 rename.setText(title);

您应该能够在EditText的方法setSelection()的帮助下实现这一点，请参阅这里

我认为这可以达到你想要的效果。

 Editable etext = mSubjectTextEditor.getText();
 Selection.setSelection(etext, etext.length());