[英]EditText focus is not working in android studio, i want to hide a textview when focus change in edittext, how to do this?
EditText 作为 ChangeContact
EditText 焦点在 android studio 中不起作用,我想在 edittext 焦点改变时隐藏一个 textview,怎么办?
ChangeContact.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (!hasFocus) {
Toast.makeText(mContext, "focus loosed", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(mContext, "focused", Toast.LENGTH_LONG).show();
bookLinear.setVisibility(View.GONE);
}
}
});
我在 XMl 文件中编辑文本
<EditText
android:id="@+id/etChangeAddress"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="6dp"
android:layout_marginBottom="8dp"
android:background="@drawable/shape_transparent"
android:ems="10"
android:focusable="true"
android:focusableInTouchMode="true"
android:gravity="center"
android:hint="Address"
android:inputType="textPersonName"
android:padding="5dp"
app:layout_constraintBottom_toTopOf="@+id/etChangeNumber"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
但我看不到 Toast
请帮忙....
您是否尝试过使用 ChangeContact?
android:focusable="true"
android:focusableInTouchMode="true"
还有 ChangeContact.requestFocus()?
在我的例子中,我无法关注焦点更改事件,因为我忘记删除setContentView()
function 并将其用于绑定初始化,如下所示:
setContentView(R.layout.activity_main)
binding = ActivityMainBinding.inflate(layoutInflater, null, false)
最终我也明白绑定初始化也是不正确的
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