【问题标题】:FullScreen DialogFragment doesn't fit the screenFullScreen DialogFragment 不适合屏幕
【发布时间】:2018-02-11 08:40:45
【问题描述】:

我正在尝试制作一个适合屏幕大小的对话框片段,但问题是我得到了这个结果:MainActivity DialogScreenShot

如您所见,该对话框不能很好地融入活动,我尝试了很多方法,但都没有运气。 这就是我调用对话框的方式:

FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            FragmentManager fragmentManager = getSupportFragmentManager();
            EventDialog newFragment = new EventDialog();
            FragmentTransaction transaction = fragmentManager.beginTransaction();
            transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
            transaction.add(android.R.id.content, newFragment).addToBackStack(null).commit();
        }
    });

这是对话框片段类:

public class EventDialog extends DialogFragment {

public static final String TAG = "Event";

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.event_dialog_layout, container, false);
    Toolbar toolbar = (Toolbar) rootView.findViewById(R.id.toolbar);
    toolbar.setTitle("New Event");

    ((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);

    ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
    if (actionBar != null) {
        actionBar.setDisplayHomeAsUpEnabled(true);
        actionBar.setHomeButtonEnabled(true);
        actionBar.setHomeAsUpIndicator(R.drawable.ic_close_white_24dp);
    }
    setHasOptionsMenu(true);
    return rootView;
}

@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    Dialog dialog = super.onCreateDialog(savedInstanceState);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);

    return dialog;
}

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    menu.clear();
    inflater.inflate(R.menu.event_dialog_menu, menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();

    if (id == R.id.action_save) {
        // handle confirmation button click here
        return true;
    } else if (id == android.R.id.home) {
        // handle close button click here
        dismiss();
        return true;
    }

    return super.onOptionsItemSelected(item);
}

这是布局xml文件:

<android.support.design.widget.CoordinatorLayout 
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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay"
    android:fitsSystemWindows="false">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:layout_scrollFlags="scroll|enterAlways"
        app:popupTheme="@style/AppTheme.AppBarOverlay" />

</android.support.design.widget.AppBarLayout>

<LinearLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Your content here" />

</LinearLayout>

你知道为什么会这样吗?

我的目标是制作一个全屏材料设计对话框

谢谢!

【问题讨论】:

    标签: java android xml android-fragments


    【解决方案1】:

    您是否尝试过为对话框片段添加样式

    EventDialog dialog = new EventDialog();
    dialog.setStyle(DialogFragment.STYLE_NO_FRAME, DialogFragment.STYLE_NO_TITLE);
    dialog.show(getFragmentManager(), EventDialog.class.getName());
    

    【讨论】:

    • 它使对话框看起来很旧,并且通常在尝试将 DialogFragment.STYLE_NO_TITLE 作为第二个参数时显示错误
    【解决方案2】:

    在 Eventdialog 类的 onResume() 中,您可以像这样设置片段的高度和宽度 -

     public void onResume() {
    
            super.onResume();
            WindowManager.LayoutParams params = getDialog().getWindow().getAttributes();
            params.width = RelativeLayout.LayoutParams.MATCH_PARENT;
            params.height = RelativeLayout.LayoutParams.MATCH_PARENT;
            params.gravity = Gravity.CENTER;
            getDialog().getWindow().setAttributes(params);
    
    
    
        }
    
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.event_dialog_layout, container, false);
        Toolbar toolbar = (Toolbar) rootView.findViewById(R.id.toolbar);
        toolbar.setTitle("New Event");
    
        ((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);
    
        ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setHomeButtonEnabled(true);
            actionBar.setHomeAsUpIndicator(R.drawable.ic_close_white_24dp);
        }
        setHasOptionsMenu(true);
        return rootView;
    }
    

    【讨论】:

    • 添加 on resume 功能时,我的应用程序崩溃了,我尝试将它也放在 on create 中,但它不起作用,仍然感谢 :)
    • 什么是错误...您可以通过单击androidstudio底部的android监视器来查看它。请记住这是被覆盖的功能..我已经更新了我的答案...供参考
    • 它说:'尝试在空对象引用上调用虚拟方法'android.view.Window android.app.Dialog.getWindow()',这就是为什么我试图把它放在里面onCreateDialog 但它对我不起作用
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