Android之拍照和相簿選取圖片並裁剪得到路徑
阿新 • • 發佈：2019-02-16
-----------------轉載請註明出處：http://blog.csdn.net/android_cll
一：先來兩張效果圖：
1.這是我們專案用到這個功能的截圖、
2.demo的截圖，功能和上面截圖功能一樣，懶得截圖、
二：實現步驟：
1.xml的實現、
<?xml version="1.0" encoding="utf-8"?> <RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height=2.activity的實現、"match_parent"> <ImageView android:id="@+id/logo" android:layout_width="114dp" android:layout_height="114dp" android:layout_centerInParent="true" android:src="@mipmap/ic_launcher" /> <RelativeLayoutandroid:id="@+id/relative_logo" android:layout_width="280dp" android:layout_height="50dp"android:layout_below="@+id/logo" android:layout_centerHorizontal="true" android:layout_marginTop="20dp" android:background="@drawable/tankuan"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="點選拍照或選擇相簿"android:textColor="#fff" android:textSize="16dp" /> </RelativeLayout> </RelativeLayout>
package cll.com.myapplication; import android.annotation.SuppressLint; import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.view.View; import android.widget.ImageView; import android.widget.RelativeLayout; import java.io.File; /** * Created by Administrator on 2017/3/28. * 拍照和相簿選取圖片並裁剪得到圖片路徑和圖片顯示 */ public class PhotoShoot extends Activity implements View.OnClickListener { private ImageView logo;//圖片 private RelativeLayout relative_logo;//點選拍照或者選擇相簿圖片 private String urlpath;//圖片路徑 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.photoshoot_layout); initlayout(); } /** * 例項化 */ private void initlayout() { logo = (ImageView) findViewById(R.id.logo); relative_logo = (RelativeLayout) findViewById(R.id.relative_logo); relative_logo.setOnClickListener(this); } /** * 點選事件 * * @param view */ @Override public void onClick(View view) { switch (view.getId()) { case R.id.relative_logo: new ActionSheetDialog(PhotoShoot.this) .builder() .setCancelable(true) .setCanceledOnTouchOutside(true) .addSheetItem("相簿", ActionSheetDialog.SheetItemColor.Blue, new ActionSheetDialog.OnSheetItemClickListener() { @Override public void onClick(int which) { Intent intent = new Intent(Intent.ACTION_PICK, null); intent.setDataAndType( MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*"); startActivityForResult(intent, 1); } }) .addSheetItem("拍照", ActionSheetDialog.SheetItemColor.Blue, new ActionSheetDialog.OnSheetItemClickListener() { @Override public void onClick(int which) { Intent intent = new Intent( MediaStore.ACTION_IMAGE_CAPTURE); //下面這句指定呼叫相機拍照後的照片儲存的路徑 intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri .fromFile(new File(Environment .getExternalStorageDirectory(), "xiaoma.jpg"))); startActivityForResult(intent, 2); } }).show(); break; } } @SuppressLint("SimpleDateFormat") @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode != Activity.RESULT_CANCELED) { switch (requestCode) { // 如果是直接從相簿獲取 case 1: startPhotoZoom(data.getData()); break; // 如果是呼叫相機拍照時 case 2: File temp = new File(Environment.getExternalStorageDirectory() + "/xiaoma.jpg"); startPhotoZoom(Uri.fromFile(temp)); break; // 取得裁剪後的圖片 case 3: if (data != null) { setPicToView(data); } break; default: break; } super.onActivityResult(requestCode, resultCode, data); } } /** * 裁剪圖片方法實現 * * @param uri */ public void startPhotoZoom(Uri uri) { Intent intent = new Intent("com.android.camera.action.CROP"); intent.setDataAndType(uri, "image/*"); //下面這個crop=true是設定在開啟的Intent中設定顯示的VIEW可裁剪 intent.putExtra("crop", "true"); // aspectX aspectY 是寬高的比例 intent.putExtra("aspectX", 1); intent.putExtra("aspectY", 1); // outputX outputY 是裁剪圖片寬高 intent.putExtra("outputX", 150); intent.putExtra("outputY", 150); intent.putExtra("return-data", true); startActivityForResult(intent, 3); } /** * 儲存裁剪之後的圖片資料 * * @param picdata */ private void setPicToView(Intent picdata) { Bundle extras = picdata.getExtras(); if (extras != null) { Bitmap photo = extras.getParcelable("data"); //圖片路徑 urlpath = FileUtilcll.saveFile(PhotoShoot.this, "temphead.jpg", photo); System.out.println("----------路徑----------" + urlpath); logo.setImageBitmap(photo); } } }3.路徑獲取工具類、
package cll.com.myapplication; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Bitmap.CompressFormat; import android.os.Environment; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; public class FileUtilcll { /** * 將Bitmap 圖片儲存到本地路徑，並返回路徑 * @param fileName 檔名稱 * @param bitmap 圖片 * @param資源型別，參照 MultimediaContentType 列舉，根據此型別，儲存時可自動歸類 */ public static String saveFile(Context c, String fileName, Bitmap bitmap) { return saveFile(c, "", fileName, bitmap); } public static String saveFile(Context c, String filePath, String fileName, Bitmap bitmap) { byte[] bytes = bitmapToBytes(bitmap); return saveFile(c, filePath, fileName, bytes); } public static byte[] bitmapToBytes(Bitmap bm) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); bm.compress(CompressFormat.JPEG, 100, baos); return baos.toByteArray(); } public static String saveFile(Context c, String filePath, String fileName, byte[] bytes) { String fileFullName = ""; FileOutputStream fos = null; String dateFolder = new SimpleDateFormat("yyyyMMddHHmmss", Locale.CHINA) .format(new Date()); try { String suffix = ""; if (filePath == null || filePath.trim().length() == 0) { filePath = Environment.getExternalStorageDirectory() + "/XiaoCao/" + dateFolder + "/"; } File file = new File(filePath); if (!file.exists()) { file.mkdirs(); } File fullFile = new File(filePath, fileName + suffix); fileFullName = fullFile.getPath(); fos = new FileOutputStream(new File(filePath, fileName + suffix)); fos.write(bytes); } catch (Exception e) { fileFullName = ""; } finally { if (fos != null) { try { fos.close(); } catch (IOException e) { fileFullName = ""; } } } return fileFullName; } }4.彈框的工具類、
package cll.com.myapplication; import android.app.Dialog; import android.content.Context; import android.graphics.Color; import android.view.Display; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.view.WindowManager; import android.widget.LinearLayout; import android.widget.LinearLayout.LayoutParams; import android.widget.ScrollView; import android.widget.TextView; import java.util.ArrayList; import java.util.List; /** * 彈框工具類 */ public class ActionSheetDialog { private Context context; private Dialog dialog; private TextView txt_title; private TextView txt_cancel; private LinearLayout lLayout_content; private ScrollView sLayout_content; private boolean showTitle = false; private List<SheetItem> sheetItemList; private Display display; public ActionSheetDialog(Context context) { this.context = context; WindowManager windowManager = (WindowManager) context .getSystemService(Context.WINDOW_SERVICE); display = windowManager.getDefaultDisplay(); } public ActionSheetDialog builder() { View view = LayoutInflater.from(context).inflate( R.layout.view_actionsheet, null); view.setMinimumWidth(display.getWidth()); sLayout_content = (ScrollView) view.findViewById(R.id.sLayout_content); lLayout_content = (LinearLayout) view .findViewById(R.id.lLayout_content); txt_title = (TextView) view.findViewById(R.id.txt_title); txt_cancel = (TextView) view.findViewById(R.id.txt_cancel); txt_cancel.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { dialog.dismiss(); } }); dialog = new Dialog(context, R.style.ActionSheetDialogStyle); dialog.setContentView(view); Window dialogWindow = dialog.getWindow(); dialogWindow.setGravity(Gravity.LEFT | Gravity.BOTTOM); WindowManager.LayoutParams lp = dialogWindow.getAttributes(); lp.x = 0; lp.y = 0; dialogWindow.setAttributes(lp); return this; } public ActionSheetDialog setTitle(String title) { showTitle = true; txt_title.setVisibility(View.VISIBLE); txt_title.setText(title); return this; } public ActionSheetDialog setCancelable(boolean cancel) { dialog.setCancelable(cancel); return this; } public ActionSheetDialog setCanceledOnTouchOutside(boolean cancel) { dialog.setCanceledOnTouchOutside(cancel); return this; } /** * @param strItem * @param color * @param listener * @return */ public ActionSheetDialog addSheetItem(String strItem, SheetItemColor color, OnSheetItemClickListener listener) { if (sheetItemList == null) { sheetItemList = new ArrayList<SheetItem>(); } sheetItemList.add(new SheetItem(strItem, color, listener)); return this; } private void setSheetItems() { if (sheetItemList == null || sheetItemList.size() <= 0) { return; } int size = sheetItemList.size(); if (size >= 7) { LayoutParams params = (LayoutParams) sLayout_content .getLayoutParams(); params.height = display.getHeight() / 2; sLayout_content.setLayoutParams(params); } for (int i = 1; i <= size; i++) { final int index = i; SheetItem sheetItem = sheetItemList.get(i - 1); String strItem = sheetItem.name; SheetItemColor color = sheetItem.color; final OnSheetItemClickListener listener = (OnSheetItemClickListener) sheetItem.itemClickListener; TextView textView = new TextView(context); textView.setText(strItem); textView.setTextSize(18); textView.setGravity(Gravity.CENTER); if (size == 1) { if (showTitle) { textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector); } else { textView.setBackgroundResource(R.drawable.actionsheet_single_selector); } } else { if (showTitle) { if (i >= 1 && i < size) { textView.setBackgroundResource(R.drawable.actionsheet_middle_selector); } else { textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector); } } else { if (i == 1) { textView.setBackgroundResource(R.drawable.actionsheet_top_selector); } else if (i < size) { textView.setBackgroundResource(R.drawable.actionsheet_middle_selector); } else { textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector); } } } if (color == null) { textView.setTextColor(Color.parseColor(SheetItemColor.Blue .getName())); } else { textView.setTextColor(Color.parseColor(color.getName())); } float scale = context.getResources().getDisplayMetrics().density; int height = (int) (45 * scale + 0.5f); textView.setLayoutParams(new LayoutParams( LayoutParams.MATCH_PARENT, height)); textView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { listener.onClick(index); dialog.dismiss(); } }); lLayout_content.addView(textView); } } public void show() { setSheetItems(); dialog.show(); } public interface OnSheetItemClickListener { void onClick(int which); } public class SheetItem { String name; OnSheetItemClickListener itemClickListener; SheetItemColor color; public SheetItem(String name, SheetItemColor color, OnSheetItemClickListener itemClickListener) { this.name = name; this.color = color; this.itemClickListener = itemClickListener; } } public enum SheetItemColor { Blue("#037BFF"), Red("#FD4A2E"); private String name; private SheetItemColor(String name) { this.name = name; } public String getName() { return name; } public void setName(String name) { this.name = name; } } }
-------------------到這差不多就這些東西了，一般我都會附上原始碼，貼出來的程式碼都有註釋，不懂得自己下原始碼看，大神勿噴。