自定义对话框使用静态Handler传递参数

直接贴代码:

JsdMainDialog.java

package com.jsd.demo;

import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

/**
*
* @author jiangshide
*
*/
public class JsdMainDialog extends Activity {

private Context mContext;

private Button mSub;
private TextView mResultValue;

public static Handler handler = new Handler();

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
getViewById();
}

public void getViewById(){
mContext = this;
mSub = (Button) this.findViewById(R.id.sub);
mResultValue = (TextView) this.findViewById(R.id.resultValue);
mResultValue.setText("没有通过Handler处理");
mSub.setOnClickListener(listener);
}

private OnClickListener listener = new OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.sub:
final String flag = "rqbackvalue";
DialogCustomer dc = new DialogCustomer(mContext,flag);
dc.show();
handler = new Handler(){
public void handleMessage(Message msg) {
String resultFlag = msg.getData().getString("flags");
if(resultFlag.equalsIgnoreCase(flag)){
mResultValue.setText("这是通过Handler处理过后来显示数据的");
mResultValue.setTextColor(Color.CYAN);
mResultValue.setTextSize(30);
}
};
};
break;

default:
break;
}
}
};
}

DialogCustomer.java:

package com.jsd.demo;

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.os.Message;
import android.view.View;
import android.widget.Button;

/**
*
* @author jiangshide
*
*/
public class DialogCustomer extends Dialog {

private Context mContext;

private Button ok;
String flag;

public DialogCustomer(Context c,String flag) {
super(c);
this.mContext = c;
this.flag = flag;
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dialog);
getViewById();
}

public void getViewById(){
ok = (Button) this.findViewById(R.id.dialog_ok);
ok.setOnClickListener(listener);
}

private android.view.View.OnClickListener listener = new android.view.View.OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.dialog_ok:
Message msg = new Message();//获取设置一个信息保存点
msg.what=1;
msg.getData().putString("flags", flag);
JsdMainDialog.handler.sendMessage(msg);//把数据放进LOOPER队列里
dismiss();
break;
}
}
};
}

dialog.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="当返回时把参数传递过去并执行判断后的操作"
/>
<Button
android:id="@+id/dialog_ok"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="请点击"
/>
</LinearLayout>