在触摸
我有一个在android-design（23.4.0）底层表中的布局。我为底部内容设置的内容视图有一个“下注”按钮和一个“接受更改”视图。它应该是这样的：
当价格发生变化时，用户必须接受更改 - 单击“接受”按钮会再次显示placebet按钮。
问题是BottomSheet对话框由于某种原因没有正确初始化 - 开始时接受更改视图（处于状态visibility==gone）没有显示，我得到下面的结果。如果我点击其中一个edittexts来显示键盘，那么当设置placeBet和AcceptChangesView的可见性时，它似乎正确初始化并且布局正确更新。但是，如果键盘尚未显示 - 则不会发生布局更改，并且视图的布局数据不会更改。自动显示和隐藏键盘似乎无法工作，我必须手动触摸编辑文本。我甚至在所有不会更新的视图上调用forceLayout - 但即便这样也不会调用布局（参见下面的日志）
- 在层次结构查看器
AcceptChangesView中，布局属性（mTop，mLeft，mBottom，mRight）都显示为0.测量的属性（getMeasuredWidth（），getMeasuredHeight（））是正确的。 - 即使调用
ViewTreeObserver().addOnGlobalLayoutListener并且StraightBetDialogView.getMeasuredHeight（）高度正确，对话框高度也不会改变。
如何模仿Android触控系统/键盘的作用，使此对话框正确初始化并正确处理视图布局？
CODE：
package com.gtech.liquidsportsbook.ui.dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.support.design.widget.BottomSheetBehavior;
import android.support.design.widget.BottomSheetDialog;
import android.util.Log;
import android.view.ViewTreeObserver;
import android.widget.FrameLayout;
import StraightBetDialogView;
/**
* Created by robert on 25/04/16.
*/
public class StraightBetDialog implements ViewTreeObserver.OnGlobalLayoutListener, DialogInterface.OnShowListener, StraightBetView.LayoutListener {
private final BottomSheetDialog dialog;
private final StraightBetView dialogView;
private final DialogInterface.OnDismissListener onDismissListener = new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(final DialogInterface dialog) {
dialogView.getViewTreeObserver().removeOnGlobalLayoutListener(StraightBetDialog.this);
ViewServer.get(getDialogView().getContext()).removeWindow(dialogView);
if (dialogView.getListener() != null) {
dialogView.getListener().onCancel();
}
}
};
public StraightBetDialog(final Context c) {
dialogView = new StraightBetView(c);
dialog = new BottomSheetDialog(c);
dialog.setContentView(dialogView);
dialog.setOnDismissListener(onDismissListener);
dialog.setCancelable(true);
dialog.setOnShowListener(this);
dialogView.getViewTreeObserver().addOnGlobalLayoutListener(this);
dialogView.setLayoutListener(this);
ViewServer.get(c).addWindow(dialogView, StraightBetView.class.getSimpleName());
}
public StraightBetView getDialogView() {
return dialogView;
}
public BottomSheetDialog getDialog() {
return dialog;
}
@Override
public void onGlobalLayout() {
adjustHeight();
}
public void adjustHeight() {
final FrameLayout bottomSheetFrameLayout = (FrameLayout) dialog.getWindow().findViewById(R.id.design_bottom_sheet);
// bottomSheetFrameLayout.getLayoutParams().height = ViewGroup.LayoutParams.WRAP_CONTENT;
// bottomSheetFrameLayout.forceLayout();
dialogView.invalidate();
final BottomSheetBehavior<FrameLayout> dialogBehaviour = BottomSheetBehavior.from(bottomSheetFrameLayout);
dialogBehaviour.setPeekHeight(dialogView.getMeasuredHeight());
dialogBehaviour.setState(BottomSheetBehavior.STATE_EXPANDED);
Log.d(getClass().getSimpleName(), "adjustHeight(): " + dialogView.getMeasuredHeight(), new Exception());
}
@Override
public void onShow(final DialogInterface dialog) {
if (dialogView.getParameters() != null) {
dialogView.getParameters().setHasChanges(false);
adjustHeight();
}
}
@Override
public void onLayout() {
adjustHeight();
}
}
相关布局xml如下：底部容器包含acceptChangesView和placeBetButton。
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/botttomContainer"
>
<com.gtech.liquidsportsbook.ui.views.AcceptChangesView
android:id="@+id/straightBetAcceptChanges"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone"
app:listener="@{listener}"
/>
<Button
android:id="@+id/placeBetButton"
style="@style/style_mgm_button_betting"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:enabled="@{viewModel.placeBetEnabled}"
android:text="@string/placeBet"
android:onClick="@{listener.onPlaceBetClick}"
/>
</FrameLayout>
cumstom视图代码在这里（我尝试过forceLayout有几种不同的尝试 - 其中没有一种实际工作）。最初，viewModel只是通过数据绑定根据hasChanges属性设置可见性。
public class StraightBetView extends FrameLayout {
private StraightBetViewModel viewModel;
private ViewStraightBetBinding binding;
private AmountListener amountListener;
private Listener listener;
private LayoutListener layoutListener;
@Inject
protected BettingUtils bettingUtils;
public interface AmountListener {
void onRiskChanged(final BigDecimal bigDecimal);
void onToWinChanged(final BigDecimal bigDecimal);
void onUnfocus(AmountInputEditText v);
}
public interface Listener extends AcceptChangesView.Listener {
void onPlaceBetClick(View v);
void onCancel();
}
public interface LayoutListener {
void onLayout();
}
private final AmountInputEditText.OnUnfocusListener editTextUnfocusListener = new AmountInputEditText.OnUnfocusListener() {
@Override
public void onUnfocus(final AmountInputEditText view) {
if (!binding.riskEditText.hasFocus() && !binding.toWinEditText.hasFocus()) {
UIUtils.closeKeyBoard(view);
} else {
UIUtils.showKeyBoard(view);
}
if (amountListener != null) {
amountListener.onUnfocus(view);
}
}
};
private final android.databinding.Observable.OnPropertyChangedCallback propertyChangedCallback = new android.databinding.Observable.OnPropertyChangedCallback() {
@Override
public void onPropertyChanged(final android.databinding.Observable observable, final int i) {
if (i == BR.hasChanges) {
setAcceptChangesState();
}
}
};
public StraightBetView(final Context context) {
super(context);
init(context);
}
public StraightBetView(final Context context, final AttributeSet attrs) {
super(context, attrs);
init(context);
}
public StraightBetView(final Context context, final AttributeSet attrs, final int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public StraightBetView(final Context context, final AttributeSet attrs, final int defStyleAttr, final int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init(context);
}
private void init(final Context context) {
MGMApplicationComponent.Injector.getComponent(context).inject(this);
final LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
binding = ViewStraightBetBinding.inflate(layoutInflater, this, true);
setId(R.id.straightBetContainer);
//setOrientation(VERTICAL);
binding.toWinEditText.setOnUnfocusListener(editTextUnfocusListener);
binding.riskEditText.setOnUnfocusListener(editTextUnfocusListener);
setAcceptChangesState();
}
private void updateView() {
binding.setViewModel(viewModel);
}
public StraightBetViewModel getParameters() {
return viewModel;
}
public void setParameters(final StraightBetViewModel parameters) {
if (viewModel != null) {
viewModel.removeOnPropertyChangedCallback(propertyChangedCallback);
}
this.viewModel = parameters;
viewModel.addOnPropertyChangedCallback(propertyChangedCallback);
//setAcceptChangesState();
updateView();
}
public AmountListener getAmountListener() {
return amountListener;
}
public void setAmountListener(final AmountListener amountListener) {
this.amountListener = amountListener;
binding.setAmountListener(amountListener);
}
@BindingAdapter("bind:amountListener")
public static void setAmountListener(final StraightBetView view, final AmountListener amountListener) {
view.setAmountListener(amountListener);
}
public Listener getListener() {
return listener;
}
public void setListener(final Listener listener) {
this.listener = listener;
binding.setListener(listener);
}
@BindingAdapter("bind:listener")
public static void setListener(final StraightBetView view, final Listener listener) {
view.setListener(listener);
}
public void localeChanged() {
LocaleUiUtil.initEditTextLocale(binding.riskEditText);
LocaleUiUtil.initEditTextLocale(binding.toWinEditText);
}
public void setAcceptChangesState() {
if (viewModel != null) {
binding.placeBetButton.setVisibility(!viewModel.isHasChanges() ? VISIBLE : GONE);
binding.straightBetAcceptChanges.setVisibility(viewModel.isHasChanges() ? VISIBLE : GONE);
}
binding.straightBetAcceptChanges.measure(MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
binding.straightBetAcceptChanges.forceLayout();
binding.straightBetAcceptChanges.layout(0, binding.botttomContainer.getTop(), getMeasuredWidth(), binding.botttomContainer.getTop() + binding.straightBetAcceptChanges.getMeasuredHeight());
binding.botttomContainer.measure(MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
binding.botttomContainer.forceLayout();
measure(MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
forceLayout();
if (layoutListener != null) {
layoutListener.onLayout();
}
}
public void setLayoutListener(final LayoutListener layoutListener) {
this.layoutListener = layoutListener;
}
}
显示对话框的代码非常简单：
public void showStraightBetDialog(final StraightBetDialogParameters straightBetParams, final Event event) {
straightBetDialog = new StraightBetDialog(getActivity());
getPresenter().createStraightBetViewModel(getActivity(), straightBetParams, event);
straightBetDialog.getDialogView().setParameters(getPresenter().getStraightBetViewModel());
straightBetDialog.getDialogView().setListener(this);
straightBetDialog.getDialogView().setAmountListener(getPresenter());
straightBetDialog.getDialog().show();
}
任何帮助表示感谢 - 如果我可以添加更多信息，请在评论中告诉我。
更新：此日志显示在触摸视图之前未调用onLayout。
06-01 12:08:28.221 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:0 mh:1593
06-01 12:08:28.271 28768-28768/com.app.dev D/StraightBetView: onAttachedToWindow:
06-01 12:08:28.271 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onAttachedToWindow:
06-01 12:08:28.281 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:08:28.331 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:08:28.331 28768-28768/com.app.dev D/StraightBetView: onLayout : true left:0 top:0 right:1440 bottom:1008
06-01 12:08:28.331 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
06-01 12:08:28.361 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
06-01 12:08:28.361 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:08:28.361 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
06-01 12:08:28.391 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:08:28.391 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
<!—- price changed should show accept changes but onLayout is NOT called (onMeasuere is) -—>
06-01 12:08:55.201 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:08:55.201 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:08:55.221 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:08:55.231 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:08:55.231 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1372
06-01 12:08:55.231 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1372
<!—- ANOTHER CHNAGE (again onLayout is not called)-—>
06-01 12:10:57.141 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:10:57.151 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:10:57.161 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:10:57.171 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:10:57.171 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1372
06-01 12:10:57.171 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1372
<!—- CLOSED -—>
06-01 12:11:52.091 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onDetachedFromWindow:
06-01 12:11:52.091 28768-28768/com.app.dev D/StraightBetView: onDetachedFromWindow:
<!—- SHOW AGAIN -—>
06-01 12:12:18.091 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:0 mh:1593
06-01 12:12:18.161 28768-28768/com.app.dev D/StraightBetView: onAttachedToWindow:
06-01 12:12:18.161 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onAttachedToWindow:
06-01 12:12:18.171 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:12:18.241 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:12:18.241 28768-28768/com.app.dev D/StraightBetView: onLayout : true left:0 top:0 right:1440 bottom:1008
06-01 12:12:18.241 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
06-01 12:12:18.261 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
06-01 12:12:18.261 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:12:18.261 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
06-01 12:12:18.291 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:12:18.291 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
<!—- TOUCH -—>
06-01 12:12:46.391 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:12:46.401 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
<!—- CLOSE KEYBOARD -—>
06-01 12:13:49.711 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1008
06-01 12:13:49.721 28768-28768/com.app.dev D/StraightBetView: onLayout : false left:0 top:0 right:1440 bottom:1008
06-01 12:13:49.721 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1008
<!—- price changed should show accept changes (since the view was touched onLayout IS called and it displays correctly) -—>
06-01 12:14:48.461 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:14:48.461 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:14:48.471 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:14:48.481 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:14:48.481 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1372
06-01 12:14:48.481 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1372
06-01 12:14:48.481 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onMeasure : mw:1440 mh:636
06-01 12:14:48.481 28768-28768/com.app.dev D/StraightBetView: onMeasure : mw:1440 mh:1372
06-01 12:14:48.491 28768-28768/com.app.dev D/StraightBetView.AcceptChangesView: onLayout : true left:0 top:0 right:1440 bottom:636
06-01 12:14:48.491 28768-28768/com.app.dev D/StraightBetView: onLayout : true left:0 top:0 right:1440 bottom:1372
06-01 12:14:48.491 28768-28768/com.app.dev D/StraightBetDialog: adjustHeight(): 1372
2 个答案:
答案 0 :(得分：1)
我遇到过类似的问题。如果您想要在展开状态下启动，请扩展BottomSheetBehavior并添加此方法。
public void setInitialState(int state) {
try {
Field field2 = BottomSheetBehavior.class.getDeclaredField("mState");
field2.setAccessible(true);
field2.set(this, state);
} catch (Exception e) {
Log.e("REFLECTION", e.getMessage());
}
}
在
之后立即调用此方法final BottomSheetBehavior<FrameLayout> dialogBehaviour = BottomSheetBehavior.from(bottomSheetFrameLayout);
我一直在努力解决类似的问题。此问题的根源是您无法在视图布局之前将状态设置为展开。这似乎是谷歌的疏忽，默认情况下不允许扩展状态。初始状态标记为私有，因此必须使用反射以便在没有动画的情况下设置状态。我希望这有帮助！我仍在与其他与此相关的问题进行斗争，但对于您的使用案例，我认为这应该足够了。
如果这不起作用，请看这里： http://docs.aws.amazon.com/mobileanalytics/latest/ug/PutEvents.html 这个解决方案也可以帮助
答案 1 :(得分：0)
我最后添加了一些代码来设置布局上的对话框高度dialog是我的BottomSheetDialog而dialogView是内容视图。
dialog = new BottomSheetDialog(c);
dialog.setContentView(dialogView);
dialog.setOnShowListener(this);
dialogView.getViewTreeObserver().addOnGlobalLayoutListener(this);
dialogView.setLayoutListener(this);
这里定义了听众
@Override
public void onGlobalLayout() {
adjustHeight();
}
public void adjustHeight() {
final FrameLayout bottomSheetFrameLayout = (FrameLayout) dialog.getWindow().findViewById(R.id.design_bottom_sheet);
if (dialogView.getMeasuredHeight() > 0) {
bottomSheetFrameLayout.measure(View.MeasureSpec.makeMeasureSpec(dialogView.getMeasuredWidth(), View.MeasureSpec.EXACTLY), View.MeasureSpec.makeMeasureSpec(dialogView.getMeasuredHeight(), View.MeasureSpec.EXACTLY));
final int top = ((View) bottomSheetFrameLayout.getParent()).getMeasuredHeight() - dialogView.getMeasuredHeight();
bottomSheetFrameLayout.layout(0, top, dialogView.getMeasuredWidth(), top + dialogView.getMeasuredHeight());
Log.d(getClass().getSimpleName(), "bottomSheetFrameLayout.layout(" + 0 + ", " + top + ", " + dialogView.getMeasuredWidth() + ", " + (top + dialogView.getMeasuredHeight()) + ")");
}
dialogView.invalidate();
final BottomSheetBehavior<FrameLayout> dialogBehaviour = BottomSheetBehavior.from(bottomSheetFrameLayout);
dialogBehaviour.setPeekHeight(dialogView.getMeasuredHeight());
dialogBehaviour.setState(BottomSheetBehavior.STATE_EXPANDED);
Log.d(getClass().getSimpleName(), "adjustHeight(): " + dialogView.getMeasuredHeight());
}
@Override
public void onShow(final DialogInterface dialog) {
if (dialogView.getParameters() != null) {
adjustHeight();
}
}
@Override
public void onLayout() {
adjustHeight();
}
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