android 调用相机拍照 并缩放切割图片

 

android 下如果做处理图片的软件 可以调用系统的控件 实现缩放切割图片 非常好的效果

         package cn.m15.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.view.View.OnClickListener;    
         import android.widget.Button;    
         import android.widget.ImageView;    
            
         public class testActivity extends Activity {    
            
                 public static final int NONE = 0;    
                 public static final int PHOTOHRAPH = 1; // 拍照    
                 public static final int PHOTOZOOM = 2; // 缩放    
                 public static final int PHOTORESOULT = 3; // 结果    
            
                 public static final String IMAGE_UNSPECIFIED = "p_w_picpath/*";    
                ImageView p_w_picpathView = null;    
                Button button0 = null;    
                Button button1 = null;    
            
                @Override    
                 public void onCreate(Bundle savedInstanceState) {    
                         super.onCreate(savedInstanceState);    
                        setContentView(R.layout.main);    
                        p_w_picpathView = (ImageView) findViewById(R.id.p_w_picpathID);    
                        button0 = (Button) findViewById(R.id.btn_01);    
                        button1 = (Button) findViewById(R.id.btn_02);    
            
                        button0.setOnClickListener( new OnClickListener() {    
                                @Override    
                                 public void onClick(View v) {    
                                        Intent intent = new Intent(Intent.ACTION_PICK, null);    
                                        intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);    
                                        startActivityForResult(intent, PHOTOZOOM);    
                                }    
                        });    
            
                        button1.setOnClickListener( new OnClickListener() {    
            
                                @Override    
                                 public void onClick(View v) {    
                                        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);    
                                        intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile( new File(Environment.getExternalStorageDirectory(), "temp.jpg")));    
                                        startActivityForResult(intent, PHOTOHRAPH);    
                                }    
                        });    
                }    
            
                @Override    
                 protected void onActivityResult( int requestCode, int resultCode, Intent data) {    
                         if (resultCode == NONE)    
                                 return;    
                         // 拍照    
                         if (requestCode == PHOTOHRAPH) {    
                                 //设置文件保存路径这里放在跟目录下    
                                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 == PHOTOZOOM) {    
                                startPhotoZoom(data.getData());    
                        }    
                         // 处理结果    
                         if (requestCode == PHOTORESOULT) {    
                                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    
                                        p_w_picpathView.setImageBitmap(photo);    
                                }    
            
                        }    
            
                         super.onActivityResult(requestCode, resultCode, data);    
                }    
            
                 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", 64);    
                        intent.putExtra( "outputY", 64);    
                        intent.putExtra( "return-data", true);    
                        startActivityForResult(intent, PHOTORESOULT);    
                }    
        }    

 

 

         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" >    
                 < TextView android:layout_width ="fill_parent"    
                         android:layout_height ="wrap_content" android:text ="@string/hello" />    
                 < ImageView android:id ="@+id/p_w_picpathID"    
                         android:adjustViewBounds ="true" android:maxWidth ="50dip"    
                         android:maxHeight ="50dip" android:layout_width ="wrap_content"    
                         android:layout_height ="wrap_content" />    
                 < Button android:id ="@+id/btn_01" android:layout_height ="50dip"    
                                 android:text ="相册" android:layout_width ="150dip" />    
                 < Button android:id ="@+id/btn_02" android:layout_height ="50dip"    
                                 android:text ="拍照" android:layout_width ="150dip" />    
         LinearLayout >    

转载于:https://blog.51cto.com/whatandroid/804780