Gob*_*ber 2 android android-edittext android-design-library android-textinputlayout
我最近将Android设计库从24.2.1升级到25.0.0.在此之后,EditText中的"drawableX"功能不起作用.
编辑01.11:我了解到如果你使用android:drawableStart而不是android:drawableLeft,在xml中设置drawable是有效的.但是以编程方式设置drawable不起作用.我使用它来制作一个"清除"按钮来清空EditText.但是这个功能现在已经破了.如果这是故意的谷歌或一个错误,我将不胜感激任何解决方法或知识!
我的可编辑文本的代码之前有效,但现在没有:
public class ClearableErrorTextInputEditText extends ErrorTextInputEditText implements View.OnFocusChangeListener, View.OnTouchListener, TextWatcher {
private Drawable resIcon;
private OnFocusChangeListener childFocusListener;
public ClearableErrorTextInputEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setup();
}
public ClearableErrorTextInputEditText(Context context, AttributeSet attrs) {
super(context, attrs);
setup();
}
public ClearableErrorTextInputEditText(Context context) {
super(context);
setup();
}
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_UP) {
if (getCompoundDrawables()[2] != null) {
final boolean tappedClose = event.getX() > (getWidth() - getPaddingRight() - resIcon.getIntrinsicWidth());
if (tappedClose) {
setText("");
return false; // true will fail on emulator running 2.1 and physical keyboard / scroll wheel
}
}
}
return false;
}
@Override
public void setOnFocusChangeListener(OnFocusChangeListener l) {
childFocusListener = l;
}
@Override
public void onFocusChange(View v, boolean hasFocus) {
setClearIconVisible(hasFocus && getText().length() > 0);
if (childFocusListener!=null){
childFocusListener.onFocusChange(v, hasFocus);
}
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count){
super.onTextChanged(s, start, before, count);
setClearIconVisible(isFocused() && s.length() > 0);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {} // not interesting
@Override
public void afterTextChanged(Editable s) {} // // not interesting
private void setup() {
if(isInEditMode()){
return;
}
resIcon = getResources().getDrawable(R.drawable.ic_clear, null);
resIcon.setBounds(0, 0, resIcon.getIntrinsicWidth(), resIcon.getIntrinsicHeight());
setClearIconVisible(false);
super.setOnTouchListener(this);
super.setOnFocusChangeListener(this);
addTextChangedListener(this);
}
private void setClearIconVisible(final boolean visible){
final Drawable icon = visible ? resIcon : null;
setCompoundDrawables(getCompoundDrawables()[0],
getCompoundDrawables()[1], icon, getCompoundDrawables()[3]);
}
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Doi*_*nhe 25
这是我能找到的最简单的方法:
第1步。
在您的布局上,设置您的endIconDrawable,重要的是要知道如果您不设置endIconMode它将不会显示。
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/custom_end_icon"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/hint_text"
app:endIconMode="custom"
app:endIconDrawable="@drawable/custom_icon"
app:endIconContentDescription="@string/custom_content_desc">
<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</com.google.android.material.textfield.TextInputLayout>
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步骤 2. 根据您想对按钮执行的操作,您可以调用以下三种方法
TextInputLayout textInputCustomEndIcon = view.findViewById(R.id.custom_end_icon);
// If the icon should work as button, set an OnClickListener to it.
textInputCustomEndIcon
.setEndIconOnClickListener(/* custom OnClickListener */);
// If any specific changes should be done when the EditText is attached (and
// thus when the end icon is added to it), set an OnEditTextAttachedListener
textInputCustomEndIcon
.addOnEditTextAttachedListener(/* custom OnEditTextAttachedListener */);
// If any specific changes should be done if/when the endIconMode gets changed,
// set an OnEndIconChangedListener
textInputCustomEndIcon
.addOnEndIconChangedListener(/* custom OnEndIconChangedListener */);
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有关自定义和附加功能的更多信息,请查看此链接欢呼
我有相同的问题,我所做的只是添加drawableStart连同drawableLeft与它显示为预期.
根据 Ahmed Ashraf G 的回答,我找到了解决方案。更改以下代码:
setCompoundDrawables(getCompoundDrawables()[0],
getCompoundDrawables()[1], icon, getCompoundDrawables()[3]);
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到:
setCompoundDrawablesRelative(getCompoundDrawablesRelative()[0],
getCompoundDrawablesRelative()[1], icon, getCompoundDrawablesRelative()[3]);
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从 StackOverflow 上的其他地方(文档没有提到这一点)来看 xxxCompoundDrawablesXxx 和 xxxCompundDrawablesRelativeXxx 之间的区别是相对版本考虑了 RTL 语言,即它们与使用drawableStart而不是drawableLeft相同。
所以总而言之,Google 已经破坏了 TextInputLayout 中 EditText 的所有非 RTL 方法。由于新方法是在 API 级别 17 中添加的,我认为这是一个主要错误,可能会在未来的更新中修复
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