那些遇到过的问题

在DialogFragment中显示ConstraintLayout

Jes*_*rup 22 android android-dialogfragment android-constraintlayout

我希望你能解决我的问题.我试图谷歌它,并在这里查看主题,但无法找到答案.

我最近改变了我的布局ConstraintLayouts,到目前为止一直很好用.然而我的问题是我有一些DialogFragments显示a LinearLayout,当我改变它时ConstraintLayout我只显示一个褪色的叠加层,但布局中没有元素.如果我将宽度和高度硬编码为类似的东西100dp,它将显示该区域.当我尝试match_parent或任何其他组合时,同样的问题适用.我也尝试将高度和宽度设置为设备的高度和宽度,但仍然没有运气.

在我的CreateWeddingMetadataFragment中的onCreateView中,我有:

createButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Log.d(TAG, "Show message dialog");

            FragmentManager fm = getFragmentManager();
            CreateWeddingMetadataDialogFragment welcomeMessageDialog = new CreateWeddingMetadataDialogFragment();
            welcomeMessageDialog.show(fm, "metadate_fragment_dialog");
            welcomeMessageDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
                @Override
                public void onDismiss(DialogInterface dialog) {
                }
            });
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在我的CreateWeddingMetadataFragmentDialog中,我有:

public class CreateWeddingMetadataDialogFragment extends DialogFragment{

private static final String TAG = CreateWeddingMetadataDialogFragment.class.getSimpleName();

public Button setupNow, setupLater;
public TextView mTest;
public ConstraintLayout parentLayout;

private DialogInterface.OnDismissListener onDismissListener;



public void setOnDismissListener(DialogInterface.OnDismissListener onDismissListener) {
    this.onDismissListener = onDismissListener;
}

@Override
public void onDismiss(DialogInterface dialog) {
    super.onDismiss(dialog);
    if (onDismissListener != null) {
        onDismissListener.onDismiss(dialog);
    }
}

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.d(TAG, "I was called");
}

public CreateWeddingMetadataDialogFragment(){}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.create_welcome_message_view, container);

    setupNow = (Button) view.findViewById(R.id.setupNowButton);
    setupLater = (Button) view.findViewById(R.id.setupLaterButton);
    mTest = (TextView) view.findViewById(R.id.welcomeMessageTitle);
    parentLayout = (ConstraintLayout) view.findViewById(R.id.clWelcomeMessage);

    DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
    int width = displayMetrics.widthPixels;
    int height = displayMetrics.heightPixels;

    parentLayout.setMinimumWidth(width);
    parentLayout.setMinimumHeight(height);

    mTest.setText("Test");
    Log.d(TAG, "I was called onCreateView" + mTest);

    setupNow.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //Go to metadate page (Hide this dialog)
        }
    });

    setupLater.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //Go to signin page and create the wedding
        }
    });


    return view;
}
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}

这是我目前尝试将其设置为设备大小.

这是create_welcome_message_view:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
                                         xmlns:app="http://schemas.android.com/apk/res-auto"
                                         android:layout_width="match_parent"
                                         android:layout_height="match_parent"
                                         xmlns:tools="http://schemas.android.com/tools"
                                         android:orientation="vertical"
                                         android:id="@+id/clWelcomeMessage">



<Button
    android:text="DET GØR JEG SENERE"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:id="@+id/setupLaterButton"
    app:layout_constraintTop_toTopOf="@+id/guideline19"
    app:layout_constraintBottom_toTopOf="@+id/guideline20"
    android:layout_marginEnd="16dp"
    app:layout_constraintRight_toRightOf="parent"
    android:layout_marginRight="16dp"
    android:layout_marginStart="16dp"
    app:layout_constraintLeft_toLeftOf="parent"
    android:layout_marginLeft="16dp"
    android:background="@drawable/border"
    android:layout_marginTop="2dp"
    android:textColor="@color/colorPrimaryDark"/>

<Button
    android:text="JEG VIL OPSÆTTE DEN NU"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:id="@+id/setupNowButton"
    app:layout_constraintTop_toTopOf="@+id/guideline12"
    app:layout_constraintBottom_toTopOf="@+id/guideline19"
    android:layout_marginEnd="16dp"
    app:layout_constraintRight_toRightOf="parent"
    android:layout_marginRight="16dp"
    android:layout_marginStart="16dp"
    app:layout_constraintLeft_toLeftOf="parent"
    android:layout_marginLeft="16dp"
    android:background="@color/colorPrimaryDark"
    android:layout_marginBottom="2dp"
    android:textColor="@color/White"/>

<TextView
    android:text="EN PERSONLIG VELKOMST"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:id="@+id/welcomeMessageTitle"
    android:layout_marginTop="16dp"
    app:layout_constraintTop_toTopOf="parent"
    android:layout_marginEnd="32dp"
    app:layout_constraintRight_toRightOf="parent"
    android:layout_marginRight="32dp"
    android:layout_marginStart="32dp"
    app:layout_constraintLeft_toLeftOf="parent"
    android:layout_marginLeft="32dp"
    app:layout_constraintBottom_toTopOf="@+id/textView5"
    android:layout_marginBottom="8dp"
    android:textAlignment="center"
    android:textSize="16sp"/>

<TextView
    android:text="Nu skal I definere den velkomst, som jeres gæster får i appen. I kan skrive navnet på brylluppet, en hlsen og har mulighed at vælge et coverbillede"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:id="@+id/textView5"
    app:layout_constraintTop_toTopOf="@+id/guideline14"
    android:layout_marginEnd="32dp"
    app:layout_constraintRight_toRightOf="parent"
    android:layout_marginRight="32dp"
    app:layout_constraintBottom_toTopOf="@+id/textView6"
    android:layout_marginBottom="8dp"
    android:layout_marginStart="32dp"
    app:layout_constraintLeft_toLeftOf="parent"
    android:layout_marginLeft="32dp"
    android:textAlignment="center"/>

<android.support.constraint.Guideline
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/guideline12"
    android:orientation="horizontal"
    tools:layout_editor_absoluteY="204dp"
    tools:layout_editor_absoluteX="0dp"
    app:layout_constraintGuide_percent="0.4"/>

<TextView
    android:text="Du vil altid kunne ændre din opsætning af velkomsten i din brugerprofil."
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:id="@+id/textView6"
    app:layout_constraintBottom_toTopOf="@+id/guideline12"
    android:layout_marginBottom="8dp"
    app:layout_constraintTop_toTopOf="@+id/guideline15"
    android:layout_marginStart="32dp"
    app:layout_constraintLeft_toLeftOf="parent"
    android:layout_marginLeft="32dp"
    android:layout_marginEnd="32dp"
    app:layout_constraintRight_toRightOf="parent"
    android:layout_marginRight="32dp"
    android:textAlignment="center"
    app:layout_constraintHorizontal_bias="0.0"
    app:layout_constraintVertical_bias="1.0"/>

<android.support.constraint.Guideline
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/guideline14"
    android:orientation="horizontal"
    tools:layout_editor_absoluteY="51dp"
    tools:layout_editor_absoluteX="0dp"
    app:layout_constraintGuide_percent="0.1"/>

<android.support.constraint.Guideline
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/guideline15"
    android:orientation="horizontal"
    tools:layout_editor_absoluteY="153dp"
    tools:layout_editor_absoluteX="0dp"
    app:layout_constraintGuide_percent="0.3"/>

<android.support.constraint.Guideline
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/guideline19"
    android:orientation="horizontal"
    tools:layout_editor_absoluteY="255dp"
    tools:layout_editor_absoluteX="0dp"
    app:layout_constraintGuide_percent="0.5"/>

<android.support.constraint.Guideline
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/guideline20"
    android:orientation="horizontal"
    tools:layout_editor_absoluteY="305dp"
    tools:layout_editor_absoluteX="0dp"
    app:layout_constraintGuide_percent="0.6"/>

</android.support.constraint.ConstraintLayout>
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如果您需要任何其他信息,请告诉我,并提前感谢.

Joh*_*nny 4

这工作正常 - 看看

\n\n

1) 最好的做法是尽可能在 XML 中按顺序排列项目，如图所示。只是为了以后容易理解。\n2) 它看起来每个其他元素都将自己限制在其他元素的高度和宽度上，并且大部分导致高度和宽度为 0。注意 LayoutParams 上的 0dp 和 wrap_content。\n3) 也支持垂直偏差。

\n\n
<?xml version="1.0" encoding="utf-8"?>\n<android.support.constraint.ConstraintLayout\nandroid:id="@+id/clWelcomeMessage"\nxmlns:android="http://schemas.android.com/apk/res/android"\nxmlns:app="http://schemas.android.com/apk/res-auto"\nxmlns:tools="http://schemas.android.com/tools"\nandroid:layout_width="match_parent"\nandroid:layout_height="wrap_content"\nandroid:orientation="vertical">\n\n<android.support.constraint.Guideline\n    android:id="@+id/guideline_ver_16"\n    android:layout_width="wrap_content"\n    android:layout_height="wrap_content"\n    android:orientation="vertical"\n    app:layout_constraintGuide_begin="@dimen/sixteenDP"/>\n<android.support.constraint.Guideline\n    android:id="@+id/guideline_ver_end_16"\n    android:layout_width="wrap_content"\n    android:layout_height="wrap_content"\n    android:orientation="vertical"\n    app:layout_constraintGuide_end="@dimen/sixteenDP"/>\n\n<TextView\n  android:id="@+id/welcomeMessageTitle"\n  android:layout_width="wrap_content"\n  android:layout_height="wrap_content"\n  android:layout_marginBottom="8dp"\n  android:layout_marginEnd="32dp"\n  android:layout_marginLeft="32dp"\n  android:layout_marginRight="32dp"\n  android:layout_marginStart="32dp"\n  android:layout_marginTop="16dp"\n  android:text="EN PERSONLIG VELKOMST"\n  android:textAlignment="center"\n  android:textSize="16sp"\n  app:layout_constraintBottom_toTopOf="@+id/textView5"\n  app:layout_constraintHorizontal_bias="0.5"\n  app:layout_constraintLeft_toLeftOf="parent"\n  app:layout_constraintRight_toRightOf="parent"\n  app:layout_constraintTop_toTopOf="parent"/>\n\n<android.support.constraint.Guideline\n android:id="@+id/guideline1"\n android:layout_width="wrap_content"\n android:layout_height="wrap_content"\n android:orientation="horizontal"\n app:layout_constraintGuide_percent="0.1"/>\n<android.support.constraint.Guideline\n android:id="@+id/guideline2"\n android:layout_width="wrap_content"\n android:layout_height="wrap_content"\n android:orientation="horizontal"\n app:layout_constraintGuide_percent="0.2"/>\n\n<TextView\n android:id="@+id/textView5"\n android:layout_width="0dp"\n android:layout_height="wrap_content"\n android:layout_marginBottom="8dp"\n android:text="Nu skal I definere den velkomst, som jeres g\xc3\xa6ster f\xc3\xa5r i \n appen. \n I kan skrive navnet p\xc3\xa5 brylluppet, en hlsen og har mulighed at v\xc3\xa6lge et \n coverbillede"\n android:textAlignment="center"\n app:layout_constraintEnd_toEndOf="@+id/guideline_ver_end_16"\n app:layout_constraintHorizontal_bias="0.5"\n app:layout_constraintStart_toStartOf="@+id/guideline_ver_16"\n app:layout_constraintTop_toBottomOf="@+id/guideline2"/>\n\n<TextView\n android:id="@+id/textView6"\n android:layout_width="0dp"\n android:layout_height="wrap_content"\n android:layout_marginBottom="8dp"\n android:layout_marginEnd="16dp"\n android:layout_marginLeft="16dp"\n android:layout_marginRight="16dp"\n android:layout_marginStart="16dp"\n android:layout_marginTop="8dp"\n android:text="Du vil altid kunne \xc3\xa6ndre din ops\xc3\xa6tning af velkomsten i din \n brugerprofil."\n android:textAlignment="center"\n app:layout_constraintBottom_toTopOf="@+id/setupNowButton"\n app:layout_constraintHorizontal_bias="0.0"\n app:layout_constraintLeft_toLeftOf="@+id/guideline_ver_16"\n app:layout_constraintRight_toRightOf="@+id/guideline_ver_end_16"\n app:layout_constraintTop_toBottomOf="@+id/textView5"/> \n\n<Button\n android:id="@+id/setupNowButton"\n android:layout_width="0dp"\n android:layout_height="wrap_content"\n android:layout_marginBottom="8dp"\n android:layout_marginEnd="16dp"\n android:layout_marginLeft="16dp"\n android:layout_marginRight="16dp"\n android:layout_marginStart="16dp"\n android:layout_marginTop="8dp"\n android:background="@color/colorPrimaryDark"\n android:text="JEG VIL OPS\xc3\x86TTE DEN NU"\n android:textColor="@color/White"\n app:layout_constraintBottom_toTopOf="@+id/setupLaterButton"\n app:layout_constraintHorizontal_bias="0.0"\n app:layout_constraintLeft_toLeftOf="parent"\n app:layout_constraintRight_toRightOf="parent"\n app:layout_constraintTop_toBottomOf="@+id/textView6"\n app:layout_constraintVertical_bias="1.0"/>\n\n\n<android.support.constraint.Guideline\n android:id="@+id/guideline6"\n android:layout_width="wrap_content"\n android:layout_height="wrap_content"\n android:orientation="horizontal"\n app:layout_constraintGuide_percent="0.6"/>\n\n<Button\n    android:id="@+id/setupLaterButton"\n    android:layout_width="0dp"\n    android:layout_height="wrap_content"\n    android:layout_marginBottom="8dp"\n    android:layout_marginEnd="16dp"\n    android:layout_marginLeft="16dp"\n    android:layout_marginRight="16dp"\n    android:layout_marginStart="16dp"\n    android:text="DET G\xc3\x98R JEG SENERE"\n    android:background="@drawable/border"\n    android:textColor="@color/colorPrimaryDark"\n    app:layout_constraintBottom_toBottomOf="parent"\n    app:layout_constraintHorizontal_bias="0.5"\n    app:layout_constraintLeft_toLeftOf="parent"\n    app:layout_constraintRight_toRightOf="parent"\n    app:layout_constraintTop_toTopOf="@+id/guideline6"\n    app:layout_constraintVertical_bias="1.0"/>\n\n </android.support.constraint.ConstraintLayout>\n
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另外，app:layout_constraintWidth_default="wrap"（宽度设置为 0dp）。如果设置，小部件将具有与使用wrap_content相同的大小，但将受到约束的限制（即它不会扩展到超出它们）。\n支持资源

\n

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