Android 选择图片裁剪，上传

先上效果图

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="${packageName}.${activityClass}" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="300px"
        android:layout_height="300px"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="28dp" />

    <Button
        android:id="@+id/btn_camera"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/imageView1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="34dp"
        android:text="拍照" />

    <Button
        android:id="@+id/btn_album"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/btn_camera"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="23dp"
        android:text="图库选择" />

RelativeLayout>

MainActivity.java

package com.example.imagecutdemo;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;

import org.apache.http.Header;

import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Base64;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends Activity {

    protected static final int CAMERA_REQUEST_CODE = 0;
    protected static final int ALBUM_REQUEST_CODE = 1;
    private static final int CROP_REQUEST_CODE = 2;
    private ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        imageView = (ImageView) findViewById(R.id.imageView1);
        Button btnCamera = (Button) findViewById(R.id.btn_camera);
        btnCamera.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(intent, CAMERA_REQUEST_CODE);
            }
        });
        Button btnAlbum = (Button) findViewById(R.id.btn_album);
        btnAlbum.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                /**这里有2种获取相册的方式*/
                Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
                intent.setType("image/*");
                //Intent intent = new Intent(Intent.ACTION_PICK, null);
                //intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
                startActivityForResult(intent, ALBUM_REQUEST_CODE);
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == CAMERA_REQUEST_CODE) {
            if (resultCode == Activity.RESULT_CANCELED)
                return;
            Bundle bundle = data.getExtras();
            if (bundle != null) {
                Bitmap bitmap = bundle.getParcelable("data");
                Uri uri = saveBitmap(bitmap);
                startImageZoom(uri);
            }
        } else if (requestCode == ALBUM_REQUEST_CODE) {
            if (resultCode == Activity.RESULT_CANCELED)
                return;
            Uri uri = data.getData();
            Uri fileUri = converUri(uri);
            startImageZoom(fileUri);
        } else if (requestCode == CROP_REQUEST_CODE) {
            Bundle bundle = data.getExtras();
            Bitmap bitmap = bundle.getParcelable("data");
            imageView.setImageBitmap(bitmap);
            sendImage(bitmap);
        }
    }

    private void startImageZoom(Uri uri) {
        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setDataAndType(uri, "image/*");
        intent.putExtra("crop", true);
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        intent.putExtra("outputX", 150);
        intent.putExtra("outputY", 150);
        intent.putExtra("return-data", true);
        startActivityForResult(intent, CROP_REQUEST_CODE);
    }

    /**
     * 将Content的Uri转成file的Uri
     * 
     * @param uri
     * @return
     */
    private Uri converUri(Uri uri) {
        InputStream in = null;
        try {
            in = getContentResolver().openInputStream(uri);
            Bitmap bitmap = BitmapFactory.decodeStream(in);
            return saveBitmap(bitmap);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 将Bitmap转成file的Uri
     * 
     * @param bitmap
     * @return
     */
    private Uri saveBitmap(Bitmap bitmap) {
        File file = new File(Environment.getExternalStorageDirectory() + "/aaa");
        if (!file.exists())
            file.mkdirs();
        File imgFile = new File(file.getAbsolutePath() + "/1.jpeg");
        if (imgFile.exists())
            imgFile.delete();
        try {
            FileOutputStream outputStream = new FileOutputStream(imgFile);
            bitmap.compress(CompressFormat.JPEG, 85, outputStream);
            outputStream.flush();
            outputStream.close();
            Uri uri = Uri.fromFile(imgFile);
            return uri;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 上传图片到服务器
     * 
     * @param bitmap
     */
    private void sendImage(Bitmap bitmap) {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        bitmap.compress(CompressFormat.JPEG, 80, outputStream);
        byte[] bs = outputStream.toByteArray();
        // 设置默认编码
        String img = new String(Base64.encodeToString(bs, Base64.DEFAULT));
        // 上传文件
        AsyncHttpClient client = new AsyncHttpClient();
        RequestParams params = new RequestParams();
        params.add("img", img);
        client.post("192.168.100.239/ImageUpload.php", params, new AsyncHttpResponseHandler() {

            @Override
            public void onSuccess(int arg0, Header[] arg1, byte[] arg2) {
                // 上传成功

            }

            @Override
            public void onFailure(int arg0, Header[] arg1, byte[] arg2, Throwable arg3) {
                // 上传失败

            }
        });
    }
}

图片上传使用了android-async-http-1.4.6 的第三方的包。

DEMO地址