Android(安卓)PromptDialog example

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<Button
android:id="@+id/buttonPrompt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show Prompt Dialog" />

<EditText
android:id="@+id/editTextResult"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

</EditText>

</LinearLayout>

prompts.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_root"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:padding="10dp" >

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Type Your Message : "
android:textAppearance="?android:attr/textAppearanceLarge" />

<EditText
android:id="@+id/editTextDialogUserInput"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

<requestFocus />

</EditText>

</LinearLayout>

PromptDialogDemoActivity.java

package com.cjp.promptdialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class PromptDialogDemoActivity extends Activity {

final Context context = this;
private Button button;
private EditText result;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
setContentView(R.layout.main);

// components from main.xml
button = (Button) findViewById(R.id.buttonPrompt);
result = (EditText) findViewById(R.id.editTextResult);

// add button listener
button.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {

// get prompts.xml view
LayoutInflater li = LayoutInflater.from(context);
View promptsView = li.inflate(R.layout.prompts, null);

AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);

// set prompts.xml to alertdialog builder
alertDialogBuilder.setView(promptsView);

final EditText userInput = (EditText) promptsView
.findViewById(R.id.editTextDialogUserInput);

// set dialog message
alertDialogBuilder
.setCancelable(false)
.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
// get user input and set it to result
// edit text
result.setText(userInput.getText());
}
})
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int id) {
dialog.cancel();
}
});

// create alert dialog
AlertDialog alertDialog = alertDialogBuilder.create();

// show it
alertDialog.show();

}
});
}
}

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