Forty-seven, realize the camera function of calling Android mobile phone

This article is reproduced from: https://www.cnblogs.com/linjiqin/archive/2011/12/28/2304970.html Author: linjiqin Please indicate the statement when reprinting.

1. main.xml layout file

<?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">
	<ImageView android:id="@+id/imageView" 
	    android:adjustViewBounds="true"
	    android:layout_gravity="center"
		android:minWidth="150dip" 
		android:minHeight="150dip"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"/>
	<Button android:id="@+id/btnPhone" 
		android:layout_width="fill_parent" 
	    android:layout_height="wrap_content"
		android:text="相册" />
	<Button android:id="@+id/btnTakePicture" 
	    android:layout_height="wrap_content"
		android:layout_width="fill_parent" 
		android:text="拍照" />
</LinearLayout>

             

            

Second, the core code

package com.ljq.test;

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

import android.app.Activity;
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.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class TestActivity extends Activity {
   privatestatic
   
  final int NONE = 0;
private static final int PHOTO_GRAPH = 1;// 拍照privatestaticfinalint PHOTO_ZOOM = 2; // 缩放privatestaticfinalint PHOTO_RESOULT = 3;// 结果privatestaticfinal String IMAGE_UNSPECIFIED = "image/*";private ImageView imageView = null;private Button btnPhone = null;private Button btnTakePicture = null;    @Override
       
       
      





public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);        setContentView(R.layout.main);        imageView = (ImageView) findViewById(R.id.imageView);        btnPhone = (Button) findViewById(R.id.btnPhone);        btnPhone.setOnClickListener(onClickListener);        btnTakePicture = (Button) findViewById(R.id.btnTakePicture);        btnTakePicture.setOnClickListener(onClickListener);    }privatefinal View.OnClickListener onClickListener = new View.OnClickListener() {
           @Overridepublicvoid onClick(View v) {
   if
   










 
   


 
   
(v==btnPhone){ //从相册获取图片
                Intent intent = new Intent(Intent.ACTION_PICK, null);
                intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);
                startActivityForResult(intent, PHOTO_ZOOM);
            }else if(v==btnTakePicture){ //从拍照获取图片
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment
                    .getExternalStorageDirectory(),"temp.jpg")));
                startActivityForResult(intent, PHOTO_GRAPH);
            }

        }

    };

    @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
   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 ; 

// Read photo album zoom if (requestCode == PHOTO_ZOOM) {
                startPhotoZoom(data.getData());         } // Process result 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) compression File // The Bitmap can be saved to the sd card here, please see:
        
   



        
   


   



http://www.cnblogs.com/linjiqin/archive/2011/12/28/2304940.html
                 imageView.setImageBitmap(photo); // Display the picture on the ImageView control
             } 

        } 

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

/** 
     * Shrink image 
     * 
     * @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 is the aspect ratio
   




        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);
    }

}