Question

我有dialog fragmentt，我有两个问题。

1.如何使宽度与父母相匹配（最干净，最好的解决方案）。


在dialog fragment我有一个editText。当对话框片段打开时，如何使其弹出软键盘？

希望你们能帮忙！

这是我的对话框片段java代码：

 @Nullable
    @Override
    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        rootView  = inflater.inflate(R.layout.activity_13g_add_comment, container, false);//The container is the rootView.

        myCognito = new MyCognito(getActivity().getApplicationContext(),getActivity().getBaseContext());

        cardClient = myCognito.getCardClient();

        bindActivity();

        return rootView;
    }

    private void bindActivity()
    {
        doneButton = (ImageButton) rootView.findViewById(R.id.add_comment_doneButton);
        doneButton.setVisibility(View.GONE);

        imageView = (ImageView) rootView.findViewById(R.id.add_comment_IV);

        RemoveGlideCacheAsyncTask removeGlideCacheAsyncTask = new RemoveGlideCacheAsyncTask(getActivity().getBaseContext(),Global_Class.getInstance().getValue().user.getUsername());
        removeGlideCacheAsyncTask.execute();


        editText = (EditText) rootView.findViewById(R.id.add_comment_ET);

        editText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count)
            {
                enableSubmitButton();
            }

            @Override
            public void afterTextChanged(Editable s)
            {

            }
        });

        imageView = (ImageView) rootView.findViewById(R.id.add_comment_IV);

        doneButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            {

            }
        });
    }

    private void enableSubmitButton()
    {
        boolean isReady = editText.getText().toString().length() > 0;
        if(isReady)
        {
            doneButton.setVisibility(View.VISIBLE);
        }
        else
        {
            doneButton.setVisibility(View.GONE);
        }
    }

这是xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_margin="10dp">
        <de.hdodenhof.circleimageview.CircleImageView
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:id="@+id/add_comment_IV"/>
        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:hint="Add a comment"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:textColor="@color/black"
            android:id="@+id/add_comment_ET"
            android:layout_marginLeft="20dp"
            android:layout_marginRight="5dp"
            android:background="@android:color/transparent"
            android:maxLength="140"/>
        <ImageButton
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:background="@color/green_main"
            android:id="@+id/add_comment_doneButton"/>
    </LinearLayout>
</LinearLayout>

Answer 1

打开DialogFragment，如下所示

SampleDialogFragment sampleDialogFragment = new SampleDialogFragment();
SampleDialogFragment.setStyle(DialogFragment.STYLE_NO_FRAME, 0);
SampleDialogFragment.show(getActivity().getSupportFragmentManager(), "sometag");

然后使用DailogFragment覆盖onStart()方法，如下所示

@Override
public void onStart() {
  super.onStart();
  getDialog().getWindow()
         .setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
}

然后显示软键盘试试这个

((InputMethodManager) sampleedittext.getContext()
        .getSystemService(Context.INPUT_METHOD_SERVICE)).showSoftInput(
        sampleedittext, InputMethodManager.SHOW_IMPLICIT);

或者你可以为Dialog

创建自定义样式

<style name="CustomDialog" parent="AppTheme" >
  <item name="android:windowNoTitle">true</item>
  <item name="android:windowFullscreen">true</item>
  <item name="android:windowIsFloating">true</item>
  <item name="android:windowCloseOnTouchOutside">true</item>
</style>

然后在对话框片段中使用该样式

@Override public void onCreate(@Nullable Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setStyle(DialogFragment.STYLE_NORMAL, R.style.CustomDialog);
}

@Override public void onStart() {
  super.onStart();
  getDialog().getWindow()
    .setLayout(WindowManager.LayoutParams.MATCH_PARENT,
        WindowManager.LayoutParams.MATCH_PARENT);
}

SampleDialogFragment sampleDialogFragment = new SampleDialogFragment();
SampleDialogFragment.show(getActivity().getSupportFragmentManager(), "sometag");

Answer 2

使用appcompactDialog并应用以下主题：

DECLARE @StoreOutputData varchar(1000) = '';
EXECUTE sp_ExecuteSQL N'SELECT @OutVariable = CONVERT(NVARCHAR(1000), SERVERPROPERTY(''ProductVersion''))', N'@OutVariable varchar(1000) OUTPUT', @OutVariable = @StoreOutputData OUTPUT;
SELECT @StoreOutputData;

以下是java代码示例：

 <style name="dialogFullScreen" parent="@android:style/Theme.NoTitleBar.Fullscreen">

    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="android:windowCloseOnTouchOutside">false</item>
    <item name="android:windowFullscreen">true</item>

    <item name="android:windowNoTitle">true</item>

</style>

Answer 3

对于自定义对话框，您可以使用：

Dialog dialog_guest = new Dialog(MainActivity.this);

dialog_guest.requestWindowFeature(Window.FEATURE_NO_TITLE);

dialog_guest.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));

dialog_guest.setContentView(R.layout.yourxml);

dialog_guest.setCanceledOnTouchOutside(false);
        dialog_guest.getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

dialog_guest.show();

另外我认为你的键盘会自动打开。如果没有，请使用：

InputMethodManager inputMethodManager =  (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
        inputMethodManager.toggleSoftInputFromWindow(yourEditText.getApplicationWindowToken(), InputMethodManager.SHOW_FORCED, 0);
        yourEditText.requestFocus();

Answer 4

对于第一个问题，您可以将其添加到dialog style

中的style.xml

    <item name="android:windowNoTitle">true</item>  
    <item name="android:windowFullscreen">true</item>

另一方面，你必须让你的EditText requestFocus并显示键盘，这里是代码：

edit.requestFocus();
InputMethodManager imm = (InputMethodManager) edit.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(0, InputMethodManager.SHOW_FORCED);

希望它有所帮助。

Answer 5

只需在片段的布局中创建一个具有非常大的高度和宽度的视图：

<View
    android:layout_width="1600dp"
    android:layout_height="1600dp"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintStart_toStartOf="parent" />

然后在DialogFragment的onCreateView方法中添加以下代码：

if (getDialog() != null && getDialog().getWindow() != null) {
    getDialog().getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
    getDialog().getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
}

使用ConstraintLayout进行测试（因此它适用于所有类型的布局）。

如何使dialogFragment宽度匹配父级？

5 个答案: