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。

    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);        }    }