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拍照

001 package cn.m15.test;

002

003 import java.io.ByteArrayOutputStream;

004 import java.io.File;

005 import android.app.Activity;

006 import android.content.Intent;

007 import android.graphics.Bitmap;

008 import android.net.Uri;

009 import android.os.Bundle;

010 import android.os.Environment;

011 import android.provider.MediaStore;

012 import android.view.View;

013 import android.view.View.OnClickListener;

014 import android.widget.Button;

015 import android.widget.ImageView;

016

017 public class testActivity extends Activity {

018

019 public static final int NONE = 0;

020 public static final int PHOTOHRAPH = 1;// 拍照

021 public static final int PHOTOZOOM = 2; // 縮放

022 public static final int PHOTORESOULT = 3;// 結果

023

024 public static final String IMAGE_UNSPECIFIED = "image/*";

025 ImageView imageView = null;

026 Button button0 = null;

027 Button button1 = null;

028

029 @Override

030 public void onCreate(Bundle savedInstanceState) {

031 super.onCreate(savedInstanceState);

032 setContentView(R.layout.main);

033 imageView = (ImageView) findViewById(R.id.imageID);

034 button0 = (Button) findViewById(R.id.btn_01);

035 button1 = (Button) findViewById(R.id.btn_02);

036

037 button0.setOnClickListener(new OnClickListener() {

038 @Override

039 public void onClick(View v) {

040 Intent intent = new Intent(Intent.ACTION_PICK, null);

041 intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);

042 startActivityForResult(intent, PHOTOZOOM);

043 }

044 });

045

046 button1.setOnClickListener(new OnClickListener() {

047

048 @Override

049 public void onClick(View v) {

050 Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

051 intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));

052 startActivityForResult(intent, PHOTOHRAPH);

053 }

054 });

055 }

056

057 @Override

058 protected void onActivityResult(int requestCode, int resultCode, Intent data) {

059 if (resultCode == NONE)

060 return;

061 // 拍照

062 if (requestCode == PHOTOHRAPH) {

063 //設置文件保存路徑這里放在跟目錄下

064 File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");

065 startPhotoZoom(Uri.fromFile(picture));

066 }

067

068 if (data == null)

069 return;

070

071 // 讀取相冊縮放圖片

072 if (requestCode == PHOTOZOOM) {

073 startPhotoZoom(data.getData());

074 }

075 // 處理結果

076 if (requestCode == PHOTORESOULT) {

077 Bundle extras = data.getExtras();

078 if (extras != null) {

079 Bitmap photo = extras.getParcelable("data");

080 ByteArrayOutputStream stream = new ByteArrayOutputStream();

081 photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);// (0 - 100)壓縮文件

082 imageView.setImageBitmap(photo);

083 }

084

085 }

086

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

088 }

089

090 public void startPhotoZoom(Uri uri) {

091 Intent intent = new Intent("com.android.camera.action.CROP");

092 intent.setDataAndType(uri, IMAGE_UNSPECIFIED);

093 intent.putExtra("crop", "true");

094 // aspectX aspectY 是寬高的比例

095 intent.putExtra("aspectX", 1);

096 intent.putExtra("aspectY", 1);

097 // outputX outputY 是裁剪圖片寬高

098 intent.putExtra("outputX", 64);

099 intent.putExtra("outputY", 64);

100 intent.putExtra("return-data", true);

101 startActivityForResult(intent, PHOTORESOULT);

102 }

103 }

`01`	`<?xml` `version="1.0"` `encoding="utf-8"?>`

`02`	`<LinearLayout` `xmlns:android="http://schemas.android.com/apk/res/android"`

`03`	`android:orientation="vertical"` `android:layout_width="fill_parent"`

`04`	`android:layout_height="fill_parent">`

`05`	`<TextView` `android:layout_width="fill_parent"`

`06`	`android:layout_height="wrap_content"` `android:text="@string/hello"` `/>`

`07`	`<ImageView` `android:id="@+id/imageID"`

`08`	`android:adjustViewBounds="true"` `android:maxWidth="50dip"`

`09`	`android:maxHeight="50dip"` `android:layout_width="wrap_content"`

`10`	`android:layout_height="wrap_content"` `/>`

`11`	`<Button` `android:id="@+id/btn_01"` `android:layout_height="50dip"`

`12`	`android:text="相冊"` `android:layout_width="150dip"/>`

`13`	`<Button` `android:id="@+id/btn_02"` `android:layout_height="50dip"`

`14`	`android:text="拍照"` `android:layout_width="150dip"/>`

`15`	`</LinearLayout>`

posted on 2012-03-15 12:12 小果子閱讀(496) 評論(0) 編輯收藏引用

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