activity_main.xml
MainActivity.java
package com.example.uploadhead;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.InputStream;import java.text.SimpleDateFormat;import java.util.Date;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.provider.MediaStore;import android.app.Activity;import android.content.Intent;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.view.View;import android.widget.Button;import android.widget.ImageView;public class MainActivity extends Activity { public static final int NONE = 0; public static final int PHOTO_CAMERA = 1;// 相机拍照 public static final int PHOTO_COMPILE = 2; // 编辑图片 public static final int PHOTO_RESOULT = 3;// 结果 ImageView headImageView = null; Button photo_button = null; Button camera_button = null; private String ImageName; public static String getStringToday() { Date currentTime = new Date(); SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss"); String dateString = formatter.format(currentTime); return dateString; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); headImageView = (ImageView) findViewById(R.id.imageID);//找到要填充的imageView photo_button = (Button) findViewById(R.id.btn_01);// 相册按钮 camera_button = (Button) findViewById(R.id.btn_02);// 拍照按钮 //开启系统的相册 photo_button.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { // 设置调用系统相册的意图(隐式意图) Intent intent = new Intent(); //设置值活动//android.intent.action.PICK intent.setAction(Intent.ACTION_PICK); //设置类型和数据 intent.setDataAndType( MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*"); // 开启系统的相册 startActivityForResult(intent, PHOTO_COMPILE); } }); //开启系统摄像头 camera_button.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { //设置图片的名称 ImageName = "/" + getStringToday() + ".jpg"; // 设置调用系统摄像头的意图(隐式意图) Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); //设置照片的输出路径和文件名 File file= new File(Environment.getExternalStorageDirectory(), ImageName); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file)); //开启摄像头 startActivityForResult(intent, PHOTO_CAMERA); } }); } // 调用startActivityResult，返回之后的回调函数 @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == NONE) return; // 通过照相机拍照的图片出理 if (requestCode == PHOTO_CAMERA) { // 设置文件保存路径这里放在跟目录下 File picture = new File(Environment.getExternalStorageDirectory() + ImageName); //裁剪图片 startPhotoZoom(Uri.fromFile(picture)); } if (data == null) return; // 读取相册裁剪图片 if (requestCode == PHOTO_COMPILE) { //裁剪图片 startPhotoZoom(data.getData()); } // 裁剪照片的处理结果 if (requestCode == PHOTO_RESOULT) { 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 //设置图片显示内容 headImageView.setImageBitmap(photo); } } super.onActivityResult(requestCode, resultCode, data); } /**调用系统的裁剪图片功能 * * @param uri图片的路径 */ public void startPhotoZoom(Uri uri) { Intent intent = new Intent("com.android.camera.action.CROP"); intent.setDataAndType(uri, "image/*"); 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, PHOTO_RESOULT); }}