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如何将数据从底表传递到Android中的片段？

[英]How to pass data from bottom sheet to a fragment in android?

 原文  2017-04-27 07:53:12  6   1    android/ android-fragments/ bottom-sheet

问题描述

我试图将值从包含一些TextViews的底部工作表传递到片段。 我的片段包含一个EditText字段和一个Floating action按钮。当用户单击浮动动作按钮时，底部工作表显示出来，其中包含多个TextViews，当用户单击底部工作表中的任何textViews时，该值或应在片段的editText字段中显示该TextView的字符串，并关闭底部的工作表。

我已经尝试在setOnShowListener方法内实现onClickListener，但是它似乎不起作用。

这是我的代码：

Fragment_TextPropert1_EditText.xml 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.sumitroy.TextProperty1_EditText"
    >
<android.support.v7.widget.CardView 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="wrap_content"
        android:orientation="horizontal"
        app:cardCornerRadius="15dp"
        android:padding="15dp"
        android:layout_below="@+id/view"
        android:layout_marginTop="10dp"
        app:cardUseCompatPadding="true"
        android:id="@+id/view2">

        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:inputType="textMultiLine"
            android:hint="Enter Your Comments Here.."
            android:id="@+id/userText"
            android:layout_centerVertical="true"
            android:layout_centerHorizontal="true" />

    </android.support.v7.widget.CardView>

<ImageButton
      android:layout_width="65dp"
      android:layout_height="65dp"
      android:id="@+id/example_Ads"
      android:background="@drawable/oval"
      android:layout_alignParentBottom="true"
      android:layout_alignParentEnd="true"
      android:layout_marginBottom="20dp"
      android:layout_marginRight="15dp"
      android:src="@drawable/double_plus"
     />


</RelativeLayout>

TextProperty1_bottomsheet.xml 

    <?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

<RelativeLayout
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:layout_behavior="android.support.design.widget.BottomSheetBehavior">


    <android.support.v7.widget.CardView 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="wrap_content"
    android:orientation="horizontal"
    app:cardCornerRadius="15dp"
    android:padding="15dp"
    android:layout_marginTop="15dp"
    app:cardUseCompatPadding="true"
    android:id="@+id/view1">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Comment1"
        android:id="@+id/example_Ad1"
        android:padding="10dp"
        android:textStyle="bold"
        android:textSize="14sp"
        android:layout_below="@+id/view"
        android:layout_alignParentStart="true" />

</android.support.v7.widget.CardView>

    <android.support.v7.widget.CardView 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="wrap_content"
        android:orientation="horizontal"
        app:cardCornerRadius="15dp"
        android:padding="15dp"
        android:layout_marginTop="10dp"
        app:cardUseCompatPadding="true"
        android:layout_below="@+id/view1"
        android:id="@+id/view2">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="Comment 2"
            android:id="@+id/example_Ad2"
            android:padding="10dp"
            android:textStyle="bold"
            android:textSize="14sp"
            android:layout_below="@+id/view"
             />

    </android.support.v7.widget.CardView>

    <android.support.v7.widget.CardView 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="wrap_content"
        android:orientation="horizontal"
        app:cardCornerRadius="15dp"
        android:padding="15dp"
        android:layout_marginTop="15dp"
        app:cardUseCompatPadding="true"
        android:id="@+id/view3"
        android:layout_below="@+id/view2">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="Comment 3 "
            android:id="@+id/example_Ad3"
            android:padding="10dp"
            android:textStyle="bold"
            android:textSize="14sp"
            android:layout_below="@+id/view"
            />

    </android.support.v7.widget.CardView>

    <android.support.v7.widget.CardView 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="wrap_content"
        android:orientation="horizontal"
        app:cardCornerRadius="15dp"
        android:padding="15dp"
        android:layout_marginTop="15dp"
        app:cardUseCompatPadding="true"
        android:id="@+id/view4"
        android:layout_below="@+id/view3">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="Comment 4 "
            android:id="@+id/example_Ad4"
            android:padding="10dp"
            android:textStyle="bold"
            android:textSize="14sp"
            android:layout_below="@+id/view"
             />

    </android.support.v7.widget.CardView>

    <android.support.v7.widget.CardView 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="wrap_content"
        android:orientation="horizontal"
        app:cardCornerRadius="15dp"
        android:padding="15dp"
        android:layout_marginTop="15dp"
        app:cardUseCompatPadding="true"
        android:id="@+id/view5"
        android:layout_below="@+id/view4">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="Comment 5 "
            android:id="@+id/example_Ad5"
            android:padding="10dp"
            android:textStyle="bold"
            android:textSize="14sp"
            android:layout_below="@+id/view"
             />

    </android.support.v7.widget.CardView>


</RelativeLayout>
</ScrollView>

TextProperty1_EditText.java 

import android.app.Activity;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomSheetBehavior;
import android.support.design.widget.BottomSheetDialog;
import android.support.v4.app.Fragment;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;


/**
 * A simple {@link Fragment} subclass.
 */
public class TextProperty1_EditText extends Fragment {

    View bottomSheetView;
    EditText editText1;
    TextView t1;
    BottomSheetDialog bottomSheetDialog;
    BottomSheetBehavior bottomSheetBehavior;
    ImageButton floatButton;
    RelativeLayout backgroundLayout;


    public TextProperty1_EditText() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        final View rootview= inflater.inflate(R.layout.fragment_text_property1__edit_text, container, false);
        editText1=(EditText) rootview.findViewById(R.id.userText);
        floatButton=(ImageButton)rootview.findViewById(R.id.example_Ads);
        floatButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                //Toast.makeText(v.getContext(),"Floating Button Works",Toast.LENGTH_SHORT).show();
                bottomSheetView=getActivity().getLayoutInflater().inflate(R.layout.textproperty1_bottomsheet,null);
                bottomSheetDialog=new BottomSheetDialog(rootview.getContext());
                bottomSheetDialog.setContentView(bottomSheetView);
                bottomSheetBehavior=BottomSheetBehavior.from((View) bottomSheetView.getParent());
                bottomSheetDialog.show();

                bottomSheetDialog.setOnShowListener(new DialogInterface.OnShowListener() {
                    @Override
                    public void onShow(DialogInterface dialog) {
                       t1=(TextView)bottomSheetView.findViewById(R.id.example_Ad1);
                        t1.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                String take1=t1.getText().toString();
                                //Toast.makeText(bottomSheetView.getContext(),"Floating Button Works",Toast.LENGTH_SHORT).show();
                                editText1.setText(take1);
                                bottomSheetDialog.dismiss();
                            }
                        });



                    }
                });
                bottomSheetDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
                    @Override
                    public void onDismiss(DialogInterface dialog) {

                    }
                });

                bottomSheetDialog.setOnKeyListener(new DialogInterface.OnKeyListener() {
                    @Override
                    public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
                        //Toast.makeText(bottomSheetView.getContext(),"Floating Button Works",Toast.LENGTH_SHORT).show();
                        return false;
                    }
                });

            }
        });


        return rootview;
    }

}

1 个解决方案

解决方案1
 4  2017-04-27 08:08:54

作为一个简单的解决方案，您可以使用LocalBroadcastManager 。 

public static final String SOME_INTENT_FILTER_NAME = "SOME_INTENT_FILTER_NAME";

在您的片段中： 

private BroadcastReceiver someBroadcastReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        //TODO extract extras from intent
    }
};
@Override
public void onResume() {
    super.onResume();
    LocalBroadcastManager.getInstance(getContext()).registerReceiver(someBroadcastReceiver,
            new IntentFilter(SOME_INTENT_FILTER_NAME));
}
@Override
public void onPause() {
    LocalBroadcastManager.getInstance(getContext()).unregisterReceiver(someBroadcastReceiver);
    super.onPause();
}

在您的底表中： 

Intent someIntent = new Intent(SOME_INTENT_FILTER_NAME);
//TODO put extras to your intent
LocalBroadcastManager.getInstance(context).sendBroadcast(someIntent);

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