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。

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);
}