我做了一个 EditText OnFocusChangeListener据推测，当它不在焦点上时，它会隐藏光标和另一个 View (即单击屏幕上除 EditText 之外的任何位置将隐藏这些项目)。点击 EditText是唯一会显示它们的时间。
这是我的 EditText 的 OnFocusChangeListener pageTitle :
pageTitle.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View view, boolean b) {
if(b) {
pageTitle.setCursorVisible(true);
saveCancelBar.setVisibility(View.VISIBLE);
} else {
pageTitle.setCursorVisible(false);
saveCancelBar.setVisibility(View.GONE);
}
}
});
我还制作了一个 OnclickListener :
pageTitle.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
pageTitle.setCursorVisible(true);
saveCancelBar.setVisibility(View.VISIBLE);
}
});
OnClickListener 有效，但 OnFocusListener 无效。理想情况下，pageTitle的光标和 saveCancelBar最初是隐藏的，只有在 pageTitle 时才会出现被点击。
这是我的 XML 代码:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:ignore="missingPrefix"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
tools:context="app.wanderast.activity.AddPhotoActivity">
<LinearLayout
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:orientation="horizontal">
<TextView
android:id="@+id/back_arrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/arrow_left"
android:textSize="20sp"
android:clickable="true"
android:textColor="@color/black" />
</LinearLayout>
<LinearLayout
android:id="@+id/header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:layout_marginStart="10dp"
android:layout_marginEnd="10dp"
android:layout_below="@id/toolbar"
android:orientation="vertical">
<EditText
android:id="@+id/title"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="36dp"
android:background="@color/transparent"
android:maxLength="64"
android:privateImeOptions="nm"
android:inputType="textNoSuggestions|textMultiLine"
android:cursorVisible="false"
app:autoSizeTextType="uniform"
app:autoSizeMinTextSize="16sp"
app:autoSizeMaxTextSize="24sp"
app:autoSizeStepGranularity="4sp"
android:textColor="@color/grey700"/>
<View
android:layout_width="100dp"
android:layout_height="2dp"
android:layout_marginTop="3dp"
android:background="@color/grey700"
/>
<LinearLayout
android:id="@+id/sort"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/header"
android:layout_marginTop="20dp"
android:clickable="true"
android:gravity="bottom"
android:orientation="horizontal"
android:visibility="gone">
<TextView
android:id="@+id/sort_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="3dp"
android:text="List View"
android:textColor="@color/grey700"
android:textSize="14sp"/>
<TextView
android:id="@+id/sort_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/chevron_circle_down"
android:textColor="@color/grey700"
android:textSize="14sp"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="@+id/linearLayout">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/add_photo_layout"
android:layout_marginTop="150dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center"
android:layout_centerInParent="true">
<TextView
android:id="@+id/placeholder"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="40dp"
android:layout_marginEnd="40dp"
android:layout_marginBottom="30dp"
android:background="@null"
android:minLines="0"
android:text="Add your first travel moment to your story"
android:textAlignment="center"
android:textColor="@color/black"
android:textSize="20sp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center">
<LinearLayout
android:id="@+id/capture_photo_button"
android:layout_marginBottom="15dp"
android:paddingStart="5dp"
android:paddingEnd="5dp"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:layout_width="170dp"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center|center_vertical"
android:background="@drawable/green_pill_thick">
<TextView
android:id="@+id/capture_photo_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:text="@string/camera"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="@color/green500"
android:layout_marginEnd="5dp"/>
<TextView
android:id="@+id/capture_photo_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Capture Moment"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="@color/green500"
android:textAlignment="center"
android:textSize="14sp"/>
</LinearLayout>
<LinearLayout
android:id="@+id/add_photo_button"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:paddingStart="5dp"
android:paddingEnd="5dp"
android:layout_width="170dp"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center|center_vertical"
android:background="@drawable/blue_pill_thick">
<TextView
android:id="@+id/add_photo_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:text="@string/photo"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="@color/blue500"
android:layout_marginEnd="5dp"/>
<TextView
android:id="@+id/add_photo_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add from Gallery"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="@color/blue500"
android:textAlignment="center"
android:textSize="14sp"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</RelativeLayout>
<RelativeLayout
android:id="@+id/list_view_layout"
android:visibility="gone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="150dp"
android:paddingBottom="50dp">
<ListView
android:id="@+id/list_view_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:stackFromBottom="true"
android:transcriptMode="alwaysScroll">
</ListView>
</RelativeLayout>
</LinearLayout>
<!--Navbar-->
<LinearLayout
android:id="@+id/photo_story_navbar"
android:layout_width="match_parent"
android:layout_height="56dp"
android:background="@drawable/navbar"
android:layout_alignParentBottom="true"
android:orientation="horizontal"
android:visibility="gone">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="right"
android:paddingStart="15dp"
android:orientation="horizontal"
android:layout_marginEnd="10dp">
<!-- Take Photo Button -->
<LinearLayout
android:id="@+id/nav_capture_button"
android:layout_width="84dp"
android:layout_height="32dp"
android:paddingStart="10dp"
android:orientation="horizontal"
android:background="@drawable/green_pill_button"
android:layout_gravity="center_vertical"
android:gravity="center|center_vertical"
android:paddingEnd="10dp"
android:clickable="true">
<TextView
android:id="@+id/nav_capture_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="14sp"
android:text="@string/camera"
android:textColor="@color/green500"
android:layout_gravity="center_horizontal|center_vertical"
android:paddingEnd="5dp"/>
<TextView
android:id="@+id/nav_capture_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Capture"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="@color/green500"
android:textAlignment="center"
android:textSize="12sp"/>
</LinearLayout>
<!-- Add from Gallery Button -->
<LinearLayout
android:id="@+id/nav_gallery_button"
android:layout_width="84dp"
android:layout_height="32dp"
android:paddingStart="10dp"
android:layout_marginLeft="5dp"
android:orientation="horizontal"
android:background="@drawable/blue_pill"
android:layout_gravity="center_vertical"
android:gravity="center|center_vertical"
android:paddingEnd="10dp"
android:clickable="true">
<TextView
android:id="@+id/nav_gallery_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="14sp"
android:text="@string/photo"
android:textColor="@color/blue500"
android:layout_gravity="center_horizontal|center_vertical"
android:paddingEnd="5dp"/>
<TextView
android:id="@+id/nav_gallery_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Gallery"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="@color/blue500"
android:textAlignment="center"
android:textSize="12sp"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="right"
android:paddingEnd="15dp"
android:orientation="horizontal">
<!-- Review button -->
<LinearLayout
android:id="@+id/nav_review_button"
android:layout_width="84dp"
android:layout_height="32dp"
android:paddingStart="10dp"
android:orientation="horizontal"
android:background="@drawable/red_500_pill"
android:layout_gravity="right"
android:gravity="center|center_vertical"
android:paddingEnd="10dp"
android:clickable="true">
<TextView
android:id="@+id/nav_review_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Review"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="@color/red500"
android:textAlignment="center"
android:textSize="12sp"/>
<TextView
android:id="@+id/nav_review_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="14sp"
android:text="@string/angle_double_right"
android:textColor="@color/red500"
android:layout_gravity="center_horizontal|center_vertical"
android:paddingStart="5dp"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
<RelativeLayout
android:id="@+id/save_cancel_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/linearLayout"
android:layout_alignParentStart="true"
android:background="@drawable/black_border_top"
android:visibility="gone">
<RelativeLayout
android:id="@+id/save_title_btn"
android:clickable="true"
android:layout_width="84dp"
android:layout_height="32dp"
android:layout_alignParentRight="true"
android:background="@drawable/blue_pill"
android:layout_marginRight="15dp"
android:layout_marginTop="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_gravity="fill"
android:text="Save Title"
android:textSize="12sp"
android:textColor="#2196F3"/>
</RelativeLayout>
<RelativeLayout
android:id="@+id/cancel_title_btn"
android:layout_width="84dp"
android:layout_height="32dp"
android:clickable="true"
android:layout_alignParentRight="true"
android:background="@drawable/grey_700_pill"
android:layout_marginRight="105dp"
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Cancel"
android:layout_gravity="fill"
android:textSize="12sp"
android:textColor="#616161" />
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>
最佳答案
如果你检查 onFocusChange(View v, boolean hasFocus) 的定义您会注意到您的代码必须像这样更改:
pageTitle.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View view, boolean hasFocus) {
if(!hasFocus) {
pageTitle.setCursorVisible(true);
saveCancelBar.setVisibility(View.VISIBLE);
} else {
pageTitle.setCursorVisible(false);
saveCancelBar.setVisibility(View.GONE);
}
}
});
这是在 Android 中检查软键盘可见性的代码
public class MainActivity extends AppCompatActivity
{
public static String TAG = MainActivity.class.getSimpleName();
private TextView saveCancelBar;
private EditText pageTitle;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setListenerToRootView();
saveCancelBar = (TextView) findViewById(R.id.cancel_bar);
pageTitle = (EditText) findViewById(R.id.title);
pageTitle.setOnFocusChangeListener(new View.OnFocusChangeListener()
{
@Override
public void onFocusChange(View view, boolean hasFocus)
{
...
}
});
}
public void setListenerToRootView()
{
final View activityRootView = getWindow().getDecorView().findViewById(android.R.id.content);
activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener()
{
@Override
public void onGlobalLayout()
{
Rect r = new Rect();
activityRootView.getWindowVisibleDisplayFrame(r);
int screenHeight = activityRootView.getRootView().getHeight();
// r.bottom is the position above soft keypad or device button.
// if keypad is shown, the r.bottom is smaller than that before.
int keypadHeight = screenHeight - r.bottom;
Log.e(TAG, "keypadHeight = " + keypadHeight);
if (keypadHeight > screenHeight * 0.15) {
// 0.15 ratio is perhaps enough to determine keypad height.
Toast.makeText(getApplicationContext(), "Gotcha!!! softKeyboard open", Toast.LENGTH_SHORT).show();
} else {
// keyboard is closed
Toast.makeText(getApplicationContext(), "Gotcha!!! softKeyboard closed", Toast.LENGTH_SHORT).show();
saveCancelBar.setVisibility(View.GONE);
}
}
});
}
}
关于android - EditText OnFocusChangeListener() 不隐藏光标和 View ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46702866/