本文实例为大家分享了Android打开相机和相册具体代码，供大家参考，具体内容如下

打开相机

/** * 选择相机 */ private void showCamera() { // 跳转到系统照相机 Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); if (cameraIntent.resolveActivity(getPackageManager()) != null) { // 设置系统相机拍照后的输出路径 // 创建临时文件 mTmpFile = OtherUtils.createFile(getApplicationContext()); cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(mTmpFile)); startActivityForResult(cameraIntent, REQUEST_CAMERA); } else { Toast.makeText(getApplicationContext(), R.string.msg_no_camera, Toast.LENGTH_SHORT).show(); } }

打开相册

Intent albumIntent = new Intent(Intent.ACTION_PICK, null); albumIntent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*"); startActivityForResult(albumIntent, REQUEST_ALBUM_OK);

onActivityResult

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode) { case REQUEST_CAMERA: //请求相机 if (mTmpFile != null) { Log.d(TAG, "onActivityResult: 请求相机： " + mTmpFile.getAbsolutePath()); Picasso.with(this).load(mTmpFile).centerCrop().resize(OtherUtils.dip2px(this,100),OtherUtils.dip2px(this,100)) .error(R.mipmap.pictures_no).into(mIvDispaly); } break; case REQUEST_ALBUM_OK: Log.d(TAG, "onActivityResult:相册 " + data.getData().toString()); ContentResolver resolver = getContentResolver(); try { InputStream inputStream = resolver.openInputStream(data.getData()); Bitmap bitmap = BitmapFactory.decodeStream(inputStream); mIvDispaly.setImageBitmap(bitmap); } catch (FileNotFoundException e) { e.printStackTrace(); } // Cursor query = resolver.query(data.getData(), null, null, null, null);//// String str = null;// while (query.moveToNext()) {// Log.d(TAG, "onActivityResult:数量 " + query.getCount());// str =query.getString(query.getColumnIndex(MediaStore.Images.Media.DATA));// Log.d(TAG, "onActivityResult: 列名" + query.getString(query.getColumnIndex(MediaStore.Images.Media.DATA)));// }// query.close();// Picasso.with(this).load(new File(str)).centerCrop().resize(OtherUtils.dip2px(this,100),OtherUtils.dip2px(this,100))// .error(R.mipmap.pictures_no).into(mIvDispaly); break; } }

OtherUtils

import android.content.Context;import android.os.Environment;import java.io.File;import java.util.Date;/** * Created by 刘楠 on 2016/7/20 0020.22:37 */public class OtherUtils { public static int dip2px(Context context, float dpValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dpValue * scale + 0.5f); } public static int px2dip(Context context, float pxValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (pxValue / scale + 0.5f); } /** * 获取拍照相片存储文件 * @param context * @return */ public static File createFile(Context context){ File file; if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){ String timeStamp = String.valueOf(new Date().getTime()); file = new File(Environment.getExternalStorageDirectory() + File.separator + timeStamp+".jpg"); }else{ File cacheDir = context.getCacheDir(); String timeStamp = String.valueOf(new Date().getTime()); file = new File(cacheDir, timeStamp+".jpg"); } return file; }}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。