Question

我希望自定义对话框在纵向和横向模式下均可工作。为此，我找到了一种在layout-land文件夹中创建XML的解决方案。因此，我复制了布局并将其粘贴到layout-land文件夹中，并进行了修改（添加了滚动视图）。尽管如此，它仍无法正常工作。尽管添加了scrollview，该对话框仍无法完全滚动。

该对话框还包含一个列表视图。

我的layout-land / dialog.xml如下。

<android.support.constraint.ConstraintLayout 
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"
    android:id="@+id/main_layout"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@color/transparent"
    tools:context="customviews.VeriDocDialog">

    <android.support.constraint.ConstraintLayout
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:background="@color/transparent"
        app:layout_constraintBottom_toBottomOf="@id/center_fab_view"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent">

    </android.support.constraint.ConstraintLayout>

    <android.support.constraint.ConstraintLayout
        android:id="@+id/top_fab_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:elevation="1dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <ImageView
            android:id="@+id/top_fab"
            android:layout_width="56dp"
            android:layout_height="56dp"
            android:background="@drawable/round_bg"
            android:scaleType="center"
            android:src="@drawable/share_24" />

    </android.support.constraint.ConstraintLayout>

    <View
        android:id="@+id/center_fab_view"
        android:layout_width="wrap_content"
        android:layout_height="1dp"
        app:layout_constraintCircle="@id/top_fab_layout" />

    <android.support.constraint.ConstraintLayout
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@color/white"
        app:layout_constraintBottom_toBottomOf="@id/top_fab_layout"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="@id/center_fab_view">

    </android.support.constraint.ConstraintLayout>

    <ImageView
        android:id="@+id/img_close"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:elevation="5dp"
        android:src="@drawable/cross_30"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/center_fab_view" />

    <ScrollView
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/top_fab_layout">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/white"
            >

            <TextView
                android:id="@+id/dialog_title"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:layout_centerHorizontal="true"
                android:layout_margin="10dp"
                android:textColor="@color/primary_text"
                android:textSize="@dimen/textsize_xlarge"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                tools:text="TITLE" />

            <ImageView
                android:id="@+id/img"
                android:layout_width="45dp"
                android:layout_height="wrap_content"
                android:layout_below="@id/dialog_title"
                android:layout_centerHorizontal="true"
                android:src="@drawable/hr"
                app:layout_constraintBottom_toTopOf="@id/tv_instruction"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@id/dialog_title" />

            <TextView
                android:id="@+id/tv_instruction"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@id/img"
                android:layout_centerHorizontal="true"
                android:layout_margin="5dp"
                android:gravity="center"
                android:lines="2"
                android:text="invited friends \n to win more scrathches"
                android:textColor="@color/primary_text"
                android:textSize="@dimen/textsize_medium"
                app:layout_constraintBottom_toTopOf="@id/center_text"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@id/img" />

            <RelativeLayout
                android:id="@+id/center_text"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@id/tv_instruction"
                android:layout_centerHorizontal="true"
                android:layout_margin="5dp"
                app:layout_constraintBottom_toTopOf="@id/listview"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@id/tv_instruction">

                <TextView
                    android:id="@+id/tv_equation"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_centerInParent="true"
                    android:gravity="center"
                    android:lines="2"
                    android:text="invite 1 = 2 Scratches"
                    android:textColor="@color/primary_text"
                    android:textSize="@dimen/textsize_medium" />

                <TextView
                    android:id="@+id/tv_highlighted_text"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_centerInParent="true"
                    android:gravity="center"
                    android:padding="5dp"
                    android:text="Facebook"
                    android:textColor="@color/blue_A200"
                    android:textSize="@dimen/textsize_regular"
                    android:visibility="gone" />

            </RelativeLayout>

            <View
                android:id="@+id/view_above_listView"
                android:layout_width="wrap_content"
                android:layout_height="3dp"
                android:layout_above="@+id/listview"
                android:background="@drawable/primary_gradient_horizontal"
                app:layout_constraintBottom_toTopOf="@id/listview" />

            <ListView
                android:id="@+id/listview"
                android:layout_width="match_parent"
                android:layout_height="160dp"
                android:layout_below="@id/center_text"
                android:divider="@color/selected_gray"
                android:dividerHeight="1dp"
                app:layout_constraintBottom_toTopOf="@id/view_above_button"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@id/center_text" />

            <TextView
                android:id="@+id/tv_loading"
                android:layout_width="match_parent"
                android:layout_height="160dp"
                android:layout_below="@id/center_text"
                android:gravity="center"
                android:text=""
                android:textColor="@color/primary"
                android:textSize="16sp"
                android:visibility="gone"
                app:layout_constraintBottom_toTopOf="@id/view_above_button"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@id/center_text" />

            <View
                android:id="@+id/view_above_button"
                android:layout_width="wrap_content"
                android:layout_height="3dp"
                android:layout_above="@+id/btn_bottom"
                android:background="@drawable/primary_gradient_horizontal"
                app:layout_constraintBottom_toTopOf="@id/btn_bottom" />

            <Button
                android:id="@+id/btn_bottom"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@id/listview"
                android:background="@color/selected_gray"
                android:text="invite"
                android:textColor="@color/primary_text"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@id/listview" />

        </RelativeLayout>

    </ScrollView>

</android.support.constraint.ConstraintLayout>

对话框在纵向模式下的外观see here与 Dialog在横向模式see here

中的外观

我的VeriDocDialog.java代码如下

public class VeriDocDialog extends Dialog {
     private View dialogView;

    public VeriDocDialog(@NonNull Context context, String dialogType, int iconDrawableId, String instructions,String bottomText, List<Contact> contactList, String buttonText) {

        super(context);
        this.context = context;
        this.dialogType = dialogType;
        this.iconDrawableId = iconDrawableId;
        this.instruction = instructions;
        this.buttonText = buttonText;
        this.contactList = contactList;
        this.bottomText = bottomText;

        setupVeriDocDialog();
    }

    public VeriDocDialog(@NonNull Context context, String dialogType, int iconDrawableId, String instructions, String bottomText, List<ResolveInfo> shareList, String buttonText, Intent shareIntent) {

        super(context);
        this.context = context;
        this.dialogType = dialogType;
        this.iconDrawableId = iconDrawableId;
        this.instruction = instructions;
        this.buttonText = buttonText;
        this.shareList = shareList;
        this.bottomText = bottomText;
        this.shareIntent = shareIntent;

        setupVeriDocDialog();
    }

    private void setupVeriDocDialog() {

        if (getWindow() != null) {
            getWindow().setBackgroundDrawableResource (R.color.transparent);
            getWindow().setGravity(Gravity.CENTER);
            getWindow().getAttributes().windowAnimations = R.style.dialogAnimation;
            requestWindowFeature(Window.FEATURE_NO_TITLE);
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         dialogView = getLayoutInflater().inflate(R.layout.dialog_veri_doc, null);
         setContentView(dialogView);

         bindView();
         initialise(dialogType);
     }

     //.... and other methods .....
}

我如何从活动中调用此对话框：

private void displayInviteDialog() {
    contactList = new ArrayList<>();

    inviteDialog = new VeriDocDialog(ScratchAndWinActivity.this,
            VeriDocDialog.TYPE_INVITE,
            R.drawable.invite_32,
            getString(R.string.str_invite_instruction),
            getString(R.string.str_equation_invite),
            contactList, VeriDocDialog.TYPE_INVITE);


    inviteDialog.show();
}

问题是，布局不正确。我也提到了Land文件夹中的xml布局。还将视图放入了scrollview内，但是scrollview仍然没有将对话框滚动到其底部。

是因为listview吗？如果是的话，请给我一些解决方案。如果不是，原因是什么？如何克服这种情况？任何帮助将不胜感激。

，并且当我尝试打开对话框时方向为横向时，land文件夹中的xml会膨胀。但是，当我打开纵向对话框时，更改方向后，xml是相同的（常规布局中相同，而不是从land文件夹中获得）。

请帮助我解决这个问题。

Answer 1

这是因为更改屏幕方向后不会重新创建对话框。而且它的资源布局过旧。

对于解决方案，您可以检测方向更改和重新创建对话框（如果已打开）。您可以在“活动”中使用D/ViewRootImpl@6b52730[JobSafeyAnalysisActivity]: ViewPostIme pointer 0 D/ViewRootImpl@6b52730[JobSafeyAnalysisActivity]: ViewPostIme pointer 1 D/InputMethodManager: HSIFW - flag : 0 Pid : 14497 D/ViewRootImpl@6b52730[JobSafeyAnalysisActivity]: Relayout returned: old=[0,0][720,1280] new=[0,0][720,1280] result=0x1 surface={valid=true 3479638016} changed=false D/ScrollView: initGoToTop I/zygote: Compiler allocated 5MB to compile void android.widget.TextView.<init>(android.content.Context, android.util.AttributeSet, int, int) I/zygote: Do partial code cache collection, code=444KB, data=343KB I/zygote: After code cache collection, code=444KB, data=343KB Increasing code cache capacity to 2MB D/AbsListView: in onLayout changed in onLayout changed D/ScrollView: onsize change changed来检测方向变化。

onConfigurationChanged

然后稍微修改清单活动注册。

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

    if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
        Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
    } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
        Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
    }

    if (inviteDialog !=null && inviteDialog.isShowing()){
        inviteDialog .dismiss(); 
        displayInviteDialog();
    }
}

private void displayInviteDialog() {
    contactList = new ArrayList<>();

    inviteDialog = new VeriDocDialog(ScratchAndWinActivity.this,
            VeriDocDialog.TYPE_INVITE,
            R.drawable.invite_32,
            getString(R.string.str_invite_instruction),
            getString(R.string.str_equation_invite),
            contactList, VeriDocDialog.TYPE_INVITE);


    inviteDialog.show();
}

建议：

1>您应将match_parent用于Dialog的父布局元素。

<activity android:name=".YourActivity"
      android:configChanges="orientation">

2>也可以通过编程设置对话框的高度和宽度match_parent。参见this answer

更新

使用 NestedScrollView 而不是 ScrollView ，因为ListView本身具有滚动属性，这将导致冲突。

更新

我创建了一个示例，该示例在两种模式下均能正常工作，您会惊讶地发现我没有为对话框设置任何特殊属性以使其正常工作。这是示例。

android:layout_width="match_parent"
android:layout_height="match_parent"

和dialog_sample.xml

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import com.innovanathinklabs.sample.R;

/**
 * Created by KHEMRAJ on 8/29/2018.
 */
public class ListActivity extends AppCompatActivity {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        MyDialog dialog = new MyDialog(this);
        dialog.show();
        Window window = dialog.getWindow();
        window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
    }

    public static class MyDialog extends Dialog {
        String[] mobileArray = {
                "Android", "IPhone", "WindowsMobile", "Blackberry",
                "WebOS", "Ubuntu", "Windows7", "Max OS X", "Android", "IPhone", "WindowsMobile", "Blackberry",
                "WebOS", "Ubuntu", "Windows7", "Max OS X", "Android", "IPhone", "WindowsMobile", "Blackberry",
                "WebOS", "Ubuntu", "Windows7", "Max OS X",
        };

        public MyDialog(@NonNull Context context) {
            super(context);
        }

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.dialog_sample);
            ArrayAdapter adapter = new ArrayAdapter<>(getContext(),
                    R.layout.row_list, mobileArray);
            ListView listView = findViewById(R.id.listView);
            listView.setAdapter(adapter);
        }
    }
}

此处输出

请注意。

我没有按照预期的方向来处理定向。
我重视孩子的看法。因此它会自动适应两个方向。
在您的xml布局中出现的问题是您未使用权重/百分比，因此内容不在屏幕上。

Answer 2

在您的VeriDocDialog类中，转到方法

private void setupVeriDocDialog() {
    if (getWindow() != null) {
        getWindow().setBackgroundDrawableResource (R.color.transparent);
        getWindow().setGravity(Gravity.CENTER);
        getWindow().getAttributes().windowAnimations = R.style.dialogAnimation;
        getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT); // Add this line and change your height & width acc.
        //Moreover you can add margin to dialog from all directions.
        requestWindowFeature(Window.FEATURE_NO_TITLE);
    }
}

这将帮助您在横向模式下显示dialog，而不会进行任何裁剪。

要将边距更改为dialog，

//Add this before showing dialog.
WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
layoutParams.x = 10;// offset margin x in pixels, change value to whatever you want
layoutParams.y = 10;// offset margin y in pixels, change value to whatever you want
getWindow().setAttributes(layoutParams);

以供参考WindowManager.LayoutParams

Answer 3

在我的layout \ activity_main.xml中使用

<ScrollView
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:id="@+id/scrollView"
        android:visibility="visible">
....
</ScrollView>

在land \ activity_main.xml中

<HorizontalScrollView
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:id="@+id/scrollView"
        android:visibility="visible">
....
</HorizontalScrollView>

希望这会对您有所帮助。

具有方向更改列表视图的自定义对话框（横向模式）

3 个答案:

请注意。