调用系统图库，系统相机拍照

效果图：

             

 

/DEMO/res/layout/activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity"    android:id="@+id/uploadPictureLayout" >    <ImageView        android:id="@+id/img"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true"        android:layout_marginLeft="31dp"        android:layout_marginTop="21dp"        android:src="@drawable/add_image_icon" /></RelativeLayout>

/DEMO/res/layout/alert_dialog.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:gravity="center_horizontal"    android:orientation="vertical" >    <LinearLayout        android:id="@+id/pop_layout"        android:layout_width="fill_parent"        android:layout_height="200dp"        android:layout_alignParentBottom="true"        android:background="#000000"        android:gravity="center_horizontal"        android:orientation="vertical" >        <Button            android:id="@+id/btn_take_photo"            android:layout_width="fill_parent"            android:layout_height="48dp"            android:layout_marginLeft="15dip"            android:layout_marginRight="15dip"            android:layout_marginTop="15dip"            android:background="#3D3D3D"            android:text="现在拍照"            android:textSize="18sp"            android:textColor="#ffffff" />        <Button            android:id="@+id/btn_pick_photo"            android:layout_width="fill_parent"            android:layout_height="48dp"            android:layout_marginLeft="15dip"            android:layout_marginRight="15dip"            android:layout_marginTop="13dip"            android:background="#3D3D3D"            android:text="从图库中选择"            android:textSize="18sp"            android:textColor="#ffffff" />        <Button            android:id="@+id/btn_cancel"            android:layout_width="fill_parent"            android:layout_height="48dp"            android:layout_marginBottom="15dip"            android:layout_marginLeft="15dip"            android:layout_marginRight="15dip"            android:layout_marginTop="13dip"            android:background="#3D3D3D"            android:text="取消"            android:textSize="18sp"            android:textColor="#ffffff" />    </LinearLayout></RelativeLayout>

com.example.demo.MainActivity

package com.example.demo;import java.io.File;import java.io.IOException;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.database.Cursor;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.view.Gravity;import android.view.View;import android.view.View.OnClickListener;import android.widget.ImageView;public class MainActivity extends Activity {private ImageView imageView;private SelectPicPopupWindow menuWindow;private File file0;//图片路径，可上传到网络private String path;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);imageView=(ImageView)findViewById(R.id.img);imageView.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {menuWindow=new SelectPicPopupWindow(MainActivity.this, itemsOnClick);menuWindow.showAtLocation(MainActivity.this.findViewById(R.id.uploadPictureLayout), Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 0, 0); // 设置layout在PopupWindow中显示的位置}});}private OnClickListener itemsOnClick=new OnClickListener() {@Overridepublic void onClick(View v) {menuWindow.dismiss();switch (v.getId()) {case R.id.btn_take_photo: {// 拍照takePhoto();break;}case R.id.btn_pick_photo: {// 打开选择图片界面pickPhoto();break;}default:break;}}};/** * 拍照获取图片 */private void takePhoto() {String state = Environment.getExternalStorageState();if (state.equals(Environment.MEDIA_MOUNTED)) {String saveDir = Environment.getExternalStorageDirectory() + "/temple";File dir = new File(saveDir);if (!dir.exists()) {dir.mkdir();}file0 = new File(saveDir, "temp.jpg");file0.delete();if (!file0.exists()) {try {file0.createNewFile();} catch (IOException e) {e.printStackTrace();return;}}Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file0));startActivityForResult(intent, 999);} else {}}/*** * 从相册中取图片 */private void pickPhoto() {Intent intent = new Intent(Intent.ACTION_PICK);intent.setType("image/*");// 相片类型startActivityForResult(intent, 888);}@SuppressWarnings("unused")@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {Bitmap photo = null;if (requestCode == 999) {if (file0 != null && file0.exists()) {BitmapFactory.Options options = new BitmapFactory.Options();options.inSampleSize = 2;path = file0.getPath();photo = BitmapFactory.decodeFile(path, options);}} else if (requestCode == 888) {Uri uri = data.getData();String[] proj = { MediaStore.Images.Media.DATA };Cursor cursor = MainActivity.this.managedQuery(uri, proj, null, null, null);int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);cursor.moveToFirst();path = cursor.getString(column_index);if (photo != null)// 如果不释放的话，不断取图片，将会内存不够photo.recycle();photo = BitmapFactory.decodeFile(path);}file0 = new File(path);imageView.setImageBitmap(photo);}}

com.example.demo.SelectPicPopupWindow

package com.example.demo;import android.app.Activity;import android.content.Context;import android.graphics.drawable.ColorDrawable;import android.view.LayoutInflater;import android.view.MotionEvent;import android.view.View;import android.view.View.OnClickListener;import android.view.View.OnTouchListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.PopupWindow;public class SelectPicPopupWindow extends PopupWindow {private Button btn_take_photo, btn_pick_photo, btn_cancel;private View mMenuView;public SelectPicPopupWindow(Activity context, OnClickListener itemsOnClick) {super(context);LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);mMenuView = inflater.inflate(R.layout.alert_dialog, null);btn_take_photo = (Button) mMenuView.findViewById(R.id.btn_take_photo);btn_pick_photo = (Button) mMenuView.findViewById(R.id.btn_pick_photo);btn_cancel = (Button) mMenuView.findViewById(R.id.btn_cancel);// 鍙栨秷鎸夐挳btn_cancel.setOnClickListener(new OnClickListener() {public void onClick(View v) {// 閿?瘉寮瑰嚭妗?dismiss();}});// 璁剧疆鎸夐挳鐩戝惉btn_pick_photo.setOnClickListener(itemsOnClick);btn_take_photo.setOnClickListener(itemsOnClick);// 璁剧疆SelectPicPopupWindow鐨刅iewthis.setContentView(mMenuView);// 璁剧疆SelectPicPopupWindow寮瑰嚭绐椾綋鐨勫this.setWidth(LayoutParams.FILL_PARENT);// 璁剧疆SelectPicPopupWindow寮瑰嚭绐椾綋鐨勯珮this.setHeight(LayoutParams.WRAP_CONTENT);// 璁剧疆SelectPicPopupWindow寮瑰嚭绐椾綋鍙偣鍑?this.setFocusable(true);// 璁剧疆SelectPicPopupWindow寮瑰嚭绐椾綋鍔ㄧ敾鏁堟灉//this.setAnimationStyle(R.style.AnimBottom);// 瀹炰緥鍖栦竴涓狢olorDrawable棰滆壊涓洪?鏄?ColorDrawable dw = new ColorDrawable(0x00000000);// 璁剧疆SelectPicPopupWindow寮瑰嚭绐椾綋鐨勮儗鏅?this.setBackgroundDrawable(dw);// mMenuView娣诲姞OnTouchListener鐩戝惉鍒ゆ柇鑾峰彇瑙﹀睆浣嶇疆濡傛灉鍦ㄩ?鎷╂澶栭潰鍒欓攢姣佸脊鍑烘mMenuView.setOnTouchListener(new OnTouchListener() {public boolean onTouch(View v, MotionEvent event) {int height = mMenuView.findViewById(R.id.pop_layout).getTop();int y = (int) event.getY();if (event.getAction() == MotionEvent.ACTION_UP) {if (y < height) {dismiss();}}return true;}});}}

不要忘了

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>