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);        }    }}