拍照保存（调用手机），对话框的自定义样式

主页面布局文件很简单就是一个按钮弹出对话框，一个imageView显示选择的图片。

我给大家提供了下载代码在这个网页：http://download.csdn.net/download/u011348453/7669871

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <Button 
        android:id="@+id/mybut"
        android:text="用户登录"
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"/>
    <ImageView 
        android:id="@+id/img_photo"
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        />
</LinearLayout> 

弹出对话框是两个按钮，一个是拍照，一个是从相册中提取照片。

photo.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:background="#ffffff"
    android:gravity="center_vertical"
    android:orientation="vertical">
        <ImageButton
            android:id="@+id/img_takephoto"
            android:layout_marginLeft="15dip"
            android:layout_marginTop="20dip"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/a_takephoto"
            />
        <ImageView 
            android:layout_margin="10dip"
            android:layout_width="240dip"
            android:layout_height="2dip"
            android:background="#CACDCF"
            />
        <ImageButton
            android:id="@+id/img_getphoto"
            android:layout_marginLeft="15dip"
            android:layout_marginBottom="20dip"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/a_localphoto"
            />
</LinearLayout> 

先给出主要的代码

package org.lxh.demo;

import java.io.ByteArrayOutputStream;
import java.io.File;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;

public class MyDialogDemo extends Activity {
    private Button mybut = null; // 定义按钮
    private ImageButton takephoto;
    private ImageButton getphoto;

    private static final int NONE = 0;
    private static final int PHOTO_GRAPH = 1;// 拍照
    private static final int PHOTO_ZOOM = 2; // 缩放
    private static final int PHOTO_RESOULT = 3;// 结果
    private static final String IMAGE_UNSPECIFIED = "image/*";
    private ImageView imageView = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        super.setContentView(R.layout.main); // 调用布局管理器
        this.mybut = (Button) super.findViewById(R.id.mybut); // 取得按钮
        this.mybut.setOnClickListener(new OnClickListenerImpl()); // 设置事件类
        imageView = (ImageView) findViewById(R.id.img_photo);
    }
    
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        if (resultCode == NONE)
            return;
        // 拍照
        if (requestCode == PHOTO_GRAPH) {
            // 设置文件保存路径
            File picture = new File(Environment.getExternalStorageDirectory()
                    + "/temp.jpg");
            startPhotoZoom(Uri.fromFile(picture));
        }

        if (data == null)
            return;

        // 读取相册缩放图片
        if (requestCode == PHOTO_ZOOM) {
            startPhotoZoom(data.getData());
        }
        // 处理结果
        if (requestCode == PHOTO_RESOULT) {
            Bundle extras = data.getExtras();
            if (extras != null) {
                Bitmap photo = extras.getParcelable("data");
                ByteArrayOutputStream stream = new ByteArrayOutputStream();
                photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0-100)压缩文件
                
                imageView.setImageBitmap(photo); //把图片显示在ImageView控件上
            }

        }
        
        super.onActivityResult(requestCode, resultCode, data);
    }
    
//------------------------------------------------------------------------1
    private class OnClickListenerImpl implements OnClickListener {

        @Override
        public void onClick(View view) {
            LayoutInflater factory = LayoutInflater.from(MyDialogDemo.this);
            View myView = factory.inflate(R.layout.a_login, null);
//            final Dialog dialog = new AlertDialog.Builder(MyDialogDemo.this)
//                    .setView(myView).create();
//            dialog.show();
             final Dialog dialog = new Dialog(MyDialogDemo.this, R.style.dialog);
             dialog.setContentView(myView);
             dialog.show();

            takephoto = (ImageButton) myView.findViewById(R.id.img_takephoto);
            getphoto = (ImageButton) myView.findViewById(R.id.img_getphoto);
            // 从拍照获取图片
            takephoto.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    Log.d("MyDialogDemo", "sslfjsljls");
                    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                    intent.putExtra(
                            MediaStore.EXTRA_OUTPUT,
                            Uri.fromFile(new File(Environment
                                    .getExternalStorageDirectory(), "temp.jpg")));
                    dialog.dismiss();
                    startActivityForResult(intent, PHOTO_GRAPH);
                }
            });
            // 从相册获取图片
            getphoto.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    Intent intent = new Intent(Intent.ACTION_PICK, null);
                    intent.setDataAndType(
                            MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                            IMAGE_UNSPECIFIED);
                    dialog.dismiss();
                    startActivityForResult(intent, PHOTO_ZOOM);
                }
            });

        }

    }
    //------------------------------------------------------------------2
    /**
     * 收缩图片
     * 
     * @param uri
     */
    public void startPhotoZoom(Uri uri) {
        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(uri, IMAGE_UNSPECIFIED);
        intent.putExtra("crop", "true");
        // aspectX aspectY 是宽高的比例
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        // outputX outputY 是裁剪图片宽高
        intent.putExtra("outputX", 300);
        intent.putExtra("outputY", 500);
        intent.putExtra("return-data", true);
        startActivityForResult(intent, PHOTO_RESOULT);
    }

}

点击模块1

//------------------------------------------------------------------------1
    private class OnClickListenerImpl implements OnClickListener {

        @Override
        public void onClick(View view) {
            LayoutInflater factory = LayoutInflater.from(MyDialogDemo.this);
            View myView = factory.inflate(R.layout.a_login, null);
//            final Dialog dialog = new AlertDialog.Builder(MyDialogDemo.this)
//                    .setView(myView).create();
//            dialog.show();
             final Dialog dialog = new Dialog(MyDialogDemo.this, R.style.dialog);
             dialog.setContentView(myView);
             dialog.show();

            takephoto = (ImageButton) myView.findViewById(R.id.img_takephoto);
            getphoto = (ImageButton) myView.findViewById(R.id.img_getphoto);
            // 从拍照获取图片
            takephoto.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    Log.d("MyDialogDemo", "sslfjsljls");
                    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                    intent.putExtra(
                            MediaStore.EXTRA_OUTPUT,
                            Uri.fromFile(new File(Environment
                                    .getExternalStorageDirectory(), "temp.jpg")));
                    dialog.dismiss();
                    startActivityForResult(intent, PHOTO_GRAPH);
                }
            });
            // 从相册获取图片
            getphoto.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    Intent intent = new Intent(Intent.ACTION_PICK, null);
                    intent.setDataAndType(
                            MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                            IMAGE_UNSPECIFIED);
                    dialog.dismiss();
                    startActivityForResult(intent, PHOTO_ZOOM);
                }
            });

        }

    }

这里设置对话框样式，去掉对话框边框

 final Dialog dialog = new Dialog(MyDialogDemo.this, R.style.dialog);
             dialog.setContentView(myView);
             dialog.show();

里面的R.style.dialog自定义在style里

<resources xmlns:android="http://schemas.android.com/apk/res/android">

    <style name="dialog" parent="@android:style/Theme.Dialog">
         <item name="android:windowFrame">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowIsTranslucent">false</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:background">@android:color/black</item>
        <item name="android:windowBackground">@null</item>
        <item name="android:backgroundDimEnabled">false</item>
    </style>

</resources>

回调方法模块2

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        if (resultCode == NONE)
            return;
        // 拍照
        if (requestCode == PHOTO_GRAPH) {
            // 设置文件保存路径
            File picture = new File(Environment.getExternalStorageDirectory()
                    + "/temp.jpg");
            startPhotoZoom(Uri.fromFile(picture));
        }

        if (data == null)
            return;

        // 读取相册缩放图片
        if (requestCode == PHOTO_ZOOM) {
            startPhotoZoom(data.getData());
        }
        // 处理结果
        if (requestCode == PHOTO_RESOULT) {
            Bundle extras = data.getExtras();
            if (extras != null) {
                Bitmap photo = extras.getParcelable("data");
                ByteArrayOutputStream stream = new ByteArrayOutputStream();
                photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0-100)压缩文件
                //此处可以把Bitmap保存到sd卡中，具体请看：http://www.cnblogs.com/linjiqin/archive/2011/12/28/2304940.html
                imageView.setImageBitmap(photo); //把图片显示在ImageView控件上
            }

        }
        
        super.onActivityResult(requestCode, resultCode, data);
    }

收缩图片模块3（方便手机显示小图标）

/**
     * 收缩图片
     * 
     * @param uri
     */
    public void startPhotoZoom(Uri uri) {
        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(uri, IMAGE_UNSPECIFIED);
        intent.putExtra("crop", "true");
        // aspectX aspectY 是宽高的比例
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        // outputX outputY 是裁剪图片宽高
        intent.putExtra("outputX", 300);
        intent.putExtra("outputY", 500);
        intent.putExtra("return-data", true);
        startActivityForResult(intent, PHOTO_RESOULT);
    }