Android开发之自定义对话框（2）—加入EditText

来源：互联网发布：好的淘宝零食点知乎编辑：程序博客网时间：2024/05/23 22:59

由于项目需要，在弹出的对话框中要有编辑框，先看效果图：
这里写图片描述

1，先看布局文件：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="240dp"    android:layout_height="wrap_content"    android:background="@drawable/dialog_bkg_2"    android:orientation="vertical">    <TextView        android:id="@+id/dialog_title"        android:layout_width="match_parent"        android:layout_height="40dp"        android:background="@drawable/dialog_title_bkg"        android:gravity="center"        android:paddingBottom="4dp"        android:paddingTop="4dp"        android:textColor="@color/white"        android:text="@string/add_friend"        android:textSize="20sp" />        <EditText            android:id="@+id/edt_dialog_message"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_margin="16dp"            android:padding="4dp"            android:hint="请输入新好友用户名"            android:background="@drawable/dialog_bkg_edit"            android:textColor="@drawable/radio_btn_text"            android:textSize="18sp" />    <LinearLayout        android:layout_width="match_parent"        android:layout_height="35dp"        android:layout_marginBottom="16dp"        android:orientation="horizontal">        <Button            android:id="@+id/btn_dialog_ok"            style="@style/btn_style"            android:layout_width="wrap_content"            android:layout_height="match_parent"            android:layout_marginLeft="16dp"            android:layout_marginRight="16dp"            android:layout_weight="1"            android:text="@string/button_add"            android:background="@drawable/button_selector"            android:textColor="@color/white"            android:textAllCaps="false"            android:textSize="18sp" />        <Button            android:id="@+id/btn_dialog_cancel"            style="@style/btn_style"            android:layout_width="wrap_content"            android:layout_height="match_parent"            android:layout_marginLeft="16dp"            android:layout_marginRight="16dp"            android:layout_weight="1"            android:text="@string/button_cancel"            android:background="@drawable/button_selector"            android:textColor="@color/white"            android:textAllCaps="false"            android:textSize="18sp" />    </LinearLayout></LinearLayout>

2，自定义dialog：

/** * Created by gyq on 2017/5/5 08:39 */public class CustomDialog extends Dialog {    public CustomDialog(Context context) {        super(context);    }    public CustomDialog(Context context, int theme) {        super(context, theme);    }    public static class Builder {        private Context context;        private String title;        private String message;        private float textSize;        private String positiveButtonText;        private String negativeButtonText;        private View contentView;        private EditText firendName;        private DialogInterface.OnClickListener positiveButtonClickListener;        private DialogInterface.OnClickListener negativeButtonClickListener;        public Builder(Context context) {            this.context = context;        }        /**         * Set the Dialog title from resource         *         * @param title         * @return         */        public Builder setTitle(int title) {            this.title = (String) context.getText(title);            return this;        }        private Builder setMessage(String msg) {            this.message = msg;            return this;        }        public Builder setMessage(String message, float textSize) {            this.message = message;            this.textSize = textSize;            return this;        }        public Builder setMessage(int message) {            this.message = (String) context.getText(message);            return this;        }        /**         * Set the Dialog title from String         *         * @param title         * @return         */        public Builder setTitle(String title) {            this.title = title;            return this;        }        public Builder setContentView(View v) {            this.contentView = v;            return this;        }        public String getFriendName() {            return firendName.getText().toString().trim();        }        /**         * Set the positive button resource and it's listener         *         * @param positiveButtonText         * @return         */        public Builder setPositiveButton(int positiveButtonText,                                         DialogInterface.OnClickListener listener) {            this.positiveButtonText = (String) context                    .getText(positiveButtonText);            this.positiveButtonClickListener = listener;            return this;        }        public Builder setPositiveButton(String positiveButtonText,                                         DialogInterface.OnClickListener listener) {            this.positiveButtonText = positiveButtonText;            this.positiveButtonClickListener = listener;            return this;        }        public Builder setNegativeButton(int negativeButtonText,                                         DialogInterface.OnClickListener listener) {            this.negativeButtonText = (String) context                    .getText(negativeButtonText);            this.negativeButtonClickListener = listener;            return this;        }        public Builder setNegativeButton(String negativeButtonText,                                         DialogInterface.OnClickListener listener) {            this.negativeButtonText = negativeButtonText;            this.negativeButtonClickListener = listener;            return this;        }        public CustomDialog create() {            LayoutInflater inflater = (LayoutInflater) context                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);            // instantiate the dialog with the custom Theme            final CustomDialog dialog = new CustomDialog(context,R.style.Dialog);            dialog.setCanceledOnTouchOutside(false);            dialog.setCancelable(false);            View layout = inflater.inflate(R.layout.dialog_clear_normal, null);            dialog.addContentView(layout, new ViewGroup.LayoutParams(                    ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));            // set the dialog title            ((TextView) layout.findViewById(R.id.dialog_title)).setText(title);            firendName =  (EditText)layout.findViewById(R.id.edt_dialog_message);            // set the confirm button            if (positiveButtonText != null) {                ((Button) layout.findViewById(R.id.btn_dialog_ok))                        .setText(positiveButtonText);                if (positiveButtonClickListener != null) {                    ((Button) layout.findViewById(R.id.btn_dialog_ok))                            .setOnClickListener(new View.OnClickListener() {                                public void onClick(View v) {                                    positiveButtonClickListener.onClick(dialog,                                            DialogInterface.BUTTON_POSITIVE);                                }                            });                }            } else {                // if no confirm button just set the visibility to GONE                layout.findViewById(R.id.btn_dialog_ok).setVisibility(                        View.GONE);            }            // set the cancel button            if (negativeButtonText != null) {                ((Button) layout.findViewById(R.id.btn_dialog_cancel))                        .setText(negativeButtonText);                if (negativeButtonClickListener != null) {                    ((Button) layout.findViewById(R.id.btn_dialog_cancel))                            .setOnClickListener(new View.OnClickListener() {                                public void onClick(View v) {                                    negativeButtonClickListener.onClick(dialog,                                            DialogInterface.BUTTON_NEGATIVE);                                }                            });                }            } else {                // if no confirm button just set the visibility to GONE                layout.findViewById(R.id.btn_dialog_cancel).setVisibility(                        View.GONE);            }            // set the content message            if (message != null) {                TextView msgView = (TextView) layout.findViewById(R.id.message);                msgView.setText(message);                if (textSize != 0) {                    msgView.setTextSize(textSize);                }            } else if (contentView != null) {            }            dialog.setContentView(layout);            return dialog;        }    }}

3，如何使用：

private void addFirend() {        final CustomDialog.Builder builder = new CustomDialog.Builder(getActivity());        builder.setTitle("添加好友");        builder.setPositiveButton("添加", new DialogInterface.OnClickListener() {            @Override            public void onClick(final DialogInterface dialog, int which) {                new Thread() {                    @Override                    public void run() {                        String friendName = builder.getFriendName();                        try{                            EMClient.getInstance().contactManager().addContact(friendName,"我是你的朋友");                        }catch (Exception e) {                            e.printStackTrace();                        }                    }                }.start();                dialog.dismiss();            }        });        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                dialog.dismiss();            }        });        builder.create().show();    }

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