Android 调用相册 拍照 实现系统控件缩放 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 今天写了一个demo分享给大家 嘿嘿。

 

 

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 = "image/*";      ImageView imageView = null;      Button button0 = null;      Button button1 = null;        @Override      public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.main);          imageView = (ImageView) findViewById(R.id.imageID);          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                  imageView.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/imageID"              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>