Android调用系统相册或拍照实现头像更换
16lz
2021-01-23
Android调用系统相册或拍照实现头像更换
更换头像功能相信每个app，都会用到，这里我也做下总结，记录下。
我这里是将代码从项目中抽取出来，难免可能会涉及到mvp相关的名词，谅解。
1、展示更改头像选择对话框：
@Overridepublic void showModifyHeadIconDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); final AlertDialog dialog = builder.create(); //加载对话框布局 View view = View.inflate(this, R.layout.personal_modifyhead_dialog, null); dialog.setView(view, 0, 0, 0, 0);// 设置边距为0,保证在2.x的版本上运行没问题 dialog.show(); //AutoRelativeLayout为鸿洋的百分比布局 AutoRelativeLayout rl_photograph = (AutoRelativeLayout) view.findViewById(R.id.rl_photograph); rl_photograph.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //选择从相册 presenter.modiftHeadFromPhotograph(); dialog.dismiss(); } }); AutoRelativeLayout rl_album = (AutoRelativeLayout) view.findViewById(R.id.rl_album); rl_album.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //选择从相机 presenter.modifyHeadFromAlbum(); dialog.dismiss(); } });}2、两种方式:
private static String path = "/sdcard/myHead/";//sd路径private Bitmap head;//头像Bitmap@Overridepublic void modifyheadFromPhotograph() { Intent intent2 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); //头像文件名称 head.jpg intent2.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(),"head.jpg"))); startActivityForResult(intent2, 2);//采用ForResult打开}@Overridepublic void modifyheadFromAlbum() { Intent intent1 = new Intent(Intent.ACTION_PICK, null); intent1.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*"); startActivityForResult(intent1, 1);}3、根据requestCode分别处理
//处理返回的resquestCodeprotected 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 cv_headportrait.setImageBitmap(head);//用ImageView显示出来 } } break; default: break; } super.onActivityResult(requestCode, resultCode, data);} 4、其他对应方法
/** * 调用系统的裁剪 * * @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(); } }}完结。。
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