酒店网站建设注意什么,烟台网站制作计划,wordpress怎么连接主机名,hhvm wordpress5分钟实现Android中更换头像功能 写在前面#xff1a; 更换头像这个功能在用户界面几乎是100%出现的。通过拍摄照片或者调用图库中的图片#xff0c;并且进行剪裁#xff0c;来进行头像的设置。 功能相关截图如下#xff1a; 下面我们直接看看完整吧#xff1a; public cl…
5分钟实现Android中更换头像功能 写在前面 更换头像这个功能在用户界面几乎是100%出现的。通过拍摄照片或者调用图库中的图片并且进行剪裁来进行头像的设置。 功能相关截图如下 下面我们直接看看完整吧 public class UserActivity extends BaseActivity implements OnClickListener {private ImageView iv_photo;private Bitmap head;// 头像Bitmapprivate static String path /sdcard/myHead/;// sd路径Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);initView();initListener();}private void initView() {setContentView(R.layout.activity_user);iv_photo (ImageView) findViewById(R.id.iv_photo);Bitmap bt BitmapFactory.decodeFile(path head.jpg);// 从SD卡中找头像转换成Bitmapif (bt ! null) {SuppressWarnings(deprecation)Drawable drawable new BitmapDrawable(bt);// 转换成drawableiv_photo.setImageDrawable(drawable);} else {/*** 如果SD里面没有则需要从服务器取头像取回来的头像再保存在SD中* */}}private void initListener() {iv_photo.setOnClickListener(this);}Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.iv_photo:// 更换头像showTypeDialog();break;}}private void showTypeDialog() {AlertDialog.Builder builder new AlertDialog.Builder(this);final AlertDialog dialog builder.create();View view View.inflate(this, R.layout.dialog_select_photo, null);TextView tv_select_gallery (TextView) view.findViewById(R.id.tv_select_gallery);TextView tv_select_camera (TextView) view.findViewById(R.id.tv_select_camera);tv_select_gallery.setOnClickListener(new OnClickListener() {// 在相册中选取Overridepublic void onClick(View v) {Intent intent1 new Intent(Intent.ACTION_PICK, null);intent1.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, image/*);startActivityForResult(intent1, 1);dialog.dismiss();}});tv_select_camera.setOnClickListener(new OnClickListener() {// 调用照相机Overridepublic void onClick(View v) {Intent intent2 new Intent(MediaStore.ACTION_IMAGE_CAPTURE);intent2.putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(new File(Environment.getExternalStorageDirectory(), head.jpg)));startActivityForResult(intent2, 2);// 采用ForResult打开dialog.dismiss();}});dialog.setView(view);dialog.show();}Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {switch (requestCode) {case 1:if (resultCode RESULT_OK) {cropPhoto(data.getData());// 裁剪图片}break;case 2:if (resultCode RESULT_OK) {File temp new File(Environment.getExternalStorageDirectory() /head.jpg);cropPhoto(Uri.fromFile(temp));// 裁剪图片}break;case 3:if (data ! null) {Bundle extras data.getExtras();head extras.getParcelable(data);if (head ! null) {/*** 上传服务器代码*/setPicToView(head);// 保存在SD卡中iv_photo.setImageBitmap(head);// 用ImageView显示出来}}break;default:break;}super.onActivityResult(requestCode, resultCode, data);}/*** 调用系统的裁剪功能* * param uri*/public void cropPhoto(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, 150);intent.putExtra(outputY, 150);intent.putExtra(return-data, true);startActivityForResult(intent, 3);}private void setPicToView(Bitmap mBitmap) {String sdStatus Environment.getExternalStorageState();if (!sdStatus.equals(Environment.MEDIA_MOUNTED)) { // 检测sd是否可用return;}FileOutputStream b null;File file new File(path);file.mkdirs();// 创建文件夹String fileName path head.jpg;// 图片名字try {b new FileOutputStream(fileName);mBitmap.compress(Bitmap.CompressFormat.JPEG, 100, b);// 把数据写入文件} catch (FileNotFoundException e) {e.printStackTrace();} finally {try {// 关闭流b.flush();b.close();} catch (IOException e) {e.printStackTrace();}}}
} 代码的注释还算全面大家可以一试~这样一个更换头像的功能就实现了。 --------------------- 作者MeloDev 来源CSDN 原文https://blog.csdn.net/MeloDev/article/details/51477369 版权声明本文为作者原创文章转载请附上博文链接
