接上一篇

package com.example.image;

import android.app.Activity;

import android.content.Intent;

import android.graphics.Bitmap;

import android.os.Bundle;

import android.provider.MediaStore;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.ImageView;

public class MainActivity extends Activity implements OnClickListener {

	private static final int TK_OK = 1; // 图库

	private static final int XJ_OK = 2; // 相机

	private static final int xj_OK_JQ = 3; // 相机拍照之后截取

	private ImageView mImageView;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		mImageView = (ImageView) findViewById(R.id.iv);

		findViewById(R.id.btn_xj).setOnClickListener(this);

		findViewById(R.id.btn_tk).setOnClickListener(this);

	}

	@Override

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

		super.onActivityResult(requestCode, resultCode, data);

		if (resultCode == RESULT_OK) {

			if (requestCode == TK_OK) {

				Bundle bundle = data.getExtras();

				Bitmap tkPhoto = (Bitmap) bundle.get("data");

				mImageView.setImageBitmap(tkPhoto);

			} else if (requestCode == XJ_OK) {

				final Bitmap xjPhoto = data.getParcelableExtra("data");

				if (xjPhoto != null) {

					doCropPhoto(xjPhoto);

				}

			} else if (requestCode == xj_OK_JQ) {

				Bitmap xjJQPhoto = data.getParcelableExtra("data");

				if (xjJQPhoto != null) {

					mImageView.setImageBitmap(xjJQPhoto);

				}

			}

		}

	}

	protected void doCropPhoto(Bitmap data) {

		Intent intent = getCropImageIntent(data);

		startActivityForResult(intent, xj_OK_JQ);

	}

        /**

	 * 用于拍照之后返回的照片裁剪

	 * @param data

	 * @return

	 */

	public static Intent getCropImageIntent(Bitmap data) {

		Intent intent = new Intent("com.android.camera.action.CROP");

        intent.setType("image/*");

        intent.putExtra("data", data);

        intent.putExtra("crop", "true");

        intent.putExtra("aspectX", 1);

        intent.putExtra("aspectY", 1);

        intent.putExtra("outputX", 128);

        intent.putExtra("outputY", 128);

        intent.putExtra("return-data", true);

        return intent;

	}

	@Override

	public void onClick(View v) {

		if (v.findViewById(R.id.btn_xj) == v) {

			Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

			startActivityForResult(intent, XJ_OK);

		} else if (v.findViewById(R.id.btn_tk) == v) {

			Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);    //获取系统图库并裁剪

			intent.setType("image/*");

			intent.putExtra("crop", "true");

			intent.putExtra("aspectX", 1);

			intent.putExtra("aspectY", 1);

			intent.putExtra("outputX", 300);

			intent.putExtra("outputY", 300);

			intent.putExtra("scale", true);

			intent.putExtra("return-data", true);

			intent.putExtra("outputFormat",

					Bitmap.CompressFormat.JPEG.toString());

			intent.putExtra("noFaceDetection", true); // no face detection

			startActivityForResult(intent, TK_OK);

		}

	}

}