自定义Dialog且实现与Activity交互

自定义一个Dialog，其中包含RadioGroup、RadioButton、EditText、Button。

Activity 给Dialog传入数据，Activity能获得Dialog的数据，实现了Activity与Dialog的交互。

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1.xml

(1)activity_main.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=".MainActivity" >    <Button        android:id="@+id/bt_show_dialog"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerHorizontal="true"        android:layout_centerVertical="true"        android:text="@string/hello_world" /></RelativeLayout>

(2)new_dialog.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="300dp"    android:layout_height="wrap_content"    android:background="@color/white"    android:paddingBottom="20dp" >    <RelativeLayout        android:id="@+id/firstRl"        android:layout_width="match_parent"        android:layout_height="40dp" >        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_centerVertical="true"            android:layout_marginLeft="15dp"            android:text="@string/execution_of_doctors_order"            android:textColor="@color/newblue" />        <TextView            android:id="@+id/cancel_tv"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentRight="true"            android:layout_centerVertical="true"            android:layout_marginRight="15dp"            android:text="@string/close"            android:textColor="@color/white"            android:visibility="gone" />    </RelativeLayout>    <View        android:id="@+id/view"        android:layout_width="match_parent"        android:layout_height="1dp"        android:layout_below="@id/firstRl"        android:background="@color/gray" />    <TextView        android:id="@+id/type_tv"        android:layout_width="match_parent"        android:layout_height="40dp"        android:layout_below="@id/view"        android:layout_marginLeft="15dp"        android:gravity="center_vertical"        android:text="@string/please_select_type_of_doctors_order_execution"        android:textColor="@color/newblue" />    <RadioGroup        android:id="@+id/type_rg"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_below="@id/type_tv"        android:layout_marginLeft="15dp"        android:orientation="horizontal" >        <RadioButton            android:id="@+id/puncture_rb"            android:layout_width="90dp"            android:layout_height="wrap_content"            android:button="@drawable/radio_button"            android:paddingLeft="10dp"            android:text="@string/puncture"            android:textColor="@color/newblue" />        <RadioButton            android:id="@+id/patrol_rb"            android:layout_width="90dp"            android:layout_height="wrap_content"            android:button="@drawable/radio_button"            android:paddingLeft="10dp"            android:text="@string/patrol"            android:textColor="@color/newblue" />        <RadioButton            android:id="@+id/withdrawal_of_needles_rb"            android:layout_width="90dp"            android:layout_height="wrap_content"            android:button="@drawable/radio_button"            android:paddingLeft="10dp"            android:text="@string/withdrawal_of_needles"            android:textColor="@color/newblue" />    </RadioGroup>    <TextView        android:id="@+id/exceptionalCase_tv"        android:layout_width="match_parent"        android:layout_height="40dp"        android:layout_below="@id/type_rg"        android:layout_marginLeft="15dp"        android:layout_marginTop="10dp"        android:gravity="center_vertical"        android:text="@string/exceptional_case_exist_or_not"        android:textColor="@color/newblue" />    <RadioGroup        android:id="@+id/exceptionalCase_rg"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_below="@id/exceptionalCase_tv"        android:layout_marginLeft="15dp"        android:orientation="horizontal" >        <RadioButton            android:id="@+id/nothave_rb"            android:layout_width="100dp"            android:layout_height="wrap_content"            android:button="@drawable/radio_button"            android:paddingLeft="10dp"            android:text="@string/nothave"            android:textColor="@color/newblue" />        <RadioButton            android:id="@+id/have_rb"            android:layout_width="100dp"            android:layout_height="wrap_content"            android:button="@drawable/radio_button"            android:paddingLeft="10dp"            android:text="@string/have"            android:textColor="@color/newblue" />    </RadioGroup>    <EditText        android:id="@+id/exceptionalCase_et"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_below="@id/exceptionalCase_rg"        android:layout_margin="15dp"        android:enabled="false"        android:gravity="top|left"        android:minHeight="100dp"        android:padding="10dp" />    <RelativeLayout        android:id="@+id/forthRl"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_below="@id/exceptionalCase_et"        android:layout_marginLeft="20dp"        android:layout_marginTop="10dp" >        <Button            android:id="@+id/save_btn"            android:layout_width="120dp"            android:layout_height="40dp"            android:layout_alignParentLeft="true"            android:background="@drawable/btnsearch"            android:text="@string/save"            android:textColor="@color/white" />        <Button            android:id="@+id/close_btn"            android:layout_width="120dp"            android:layout_height="40dp"            android:layout_alignParentRight="true"            android:layout_marginRight="20dp"            android:background="@drawable/btnsearch"            android:text="@string/close"            android:textColor="@color/white" />    </RelativeLayout></RelativeLayout>

2.Java代码

(1)MainActivity.java

package com.example.demo_dialog0719;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.widget.Button;import android.widget.Toast;public class MainActivity extends Activity {    Button showDialog;    private NewDialog newDialog;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.activity_main);        showDialog = (Button) findViewById(R.id.bt_show_dialog);        showDialog.setOnClickListener(new OnClickListener() {            String prescriptionGroupNum = "Hello World";            @Override            public void onClick(View v) {                newDialog = new NewDialog(MainActivity.this,                        prescriptionGroupNum) {                    @Override                    public void onSign(String prescriptionGroupNum,                            String type, String executePersonExceptional) {                        Toast.makeText(MainActivity.this, prescriptionGroupNum,                                Toast.LENGTH_LONG).show();                    }                };            }        });    }}

(2)NewDialog.java

/* * @Title:  NewDialog.java * @Description:  TODO  * @author:  张志安 * @data:  2016-7-19 下午3:09:59 *  */package com.example.demo_dialog0719;import android.app.Dialog;import android.content.Context;import android.view.View;import android.view.Window;import android.widget.Button;import android.widget.EditText;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.Toast;import android.widget.RadioGroup.OnCheckedChangeListener;/** * TODO *  * @author 张志安 * @data: 2016-7-19 下午3:09:59 */public abstract class NewDialog extends Dialog {    // 事件类型    private RadioGroup type_rg;    // 有无特殊情况    private RadioGroup exceptionalCase_rg;    // 特殊情况    private EditText exceptionalCase_et;    private RadioButton nothave_rb;    private RadioButton have_rb;    // 保存    private Button save_btn;    // 关闭    private Button close_btn;    // 选择事件类型后标记    private String type;    public NewDialog(final Context context, final String prescriptionGroupNum) {        super(context);        requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.new_dialog);        type_rg = (RadioGroup) findViewById(R.id.type_rg);        exceptionalCase_rg = (RadioGroup) findViewById(R.id.exceptionalCase_rg);        nothave_rb = (RadioButton) findViewById(R.id.nothave_rb);        have_rb = (RadioButton) findViewById(R.id.have_rb);        exceptionalCase_et = (EditText) findViewById(R.id.exceptionalCase_et);        save_btn = (Button) findViewById(R.id.save_btn);        close_btn = (Button) findViewById(R.id.close_btn);        type_rg.setOnCheckedChangeListener(new OnCheckedChangeListener() {            @Override            public void onCheckedChanged(RadioGroup group, int checkedId) {                switch (group.getCheckedRadioButtonId()) {                case R.id.puncture_rb:                    type = "1";                    nothave_rb.setClickable(false);                    have_rb.setClickable(false);                    nothave_rb.setChecked(false);                    have_rb.setChecked(false);                    exceptionalCase_et.setText("");                    exceptionalCase_et.clearFocus();                    exceptionalCase_et.setEnabled(false);                    break;                case R.id.patrol_rb:                    type = "2";                    nothave_rb.setClickable(true);                    have_rb.setClickable(true);                    nothave_rb.setChecked(true);                    have_rb.setChecked(false);                    break;                case R.id.withdrawal_of_needles_rb:                    type = "3";                    nothave_rb.setClickable(false);                    have_rb.setClickable(false);                    nothave_rb.setChecked(false);                    have_rb.setChecked(false);                    exceptionalCase_et.setText("");                    exceptionalCase_et.clearFocus();                    exceptionalCase_et.setEnabled(false);                    break;                default:                    break;                }            }        });        exceptionalCase_rg                .setOnCheckedChangeListener(new OnCheckedChangeListener() {                    @Override                    public void onCheckedChanged(RadioGroup group, int checkedId) {                        // TODO Auto-generated method stub                        switch (group.getCheckedRadioButtonId()) {                        case R.id.nothave_rb:                            exceptionalCase_et.setText("");                            exceptionalCase_et.clearFocus();                            exceptionalCase_et.setEnabled(false);                            break;                        case R.id.have_rb:                            exceptionalCase_et.setEnabled(true);                            exceptionalCase_et.setFocusable(true);                            break;                        default:                            break;                        }                    }                });        save_btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                if (null == type || "".equals(type)) {                    Toast.makeText(context, "请选择事件类型", Toast.LENGTH_LONG)                            .show();                } else {                    onSign(prescriptionGroupNum, type, exceptionalCase_et                            .getText().toString());                }            }        });        close_btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                dismiss();            }        });        setCancelable(false);        show();    }    public abstract void onSign(String prescriptionGroupNum, String type,            String executePersonExceptional);}