andriod開啟網路攝影機和開啟相簿，andriod網路攝影機相簿

andriod開啟網路攝影機和開啟相簿，andriod網路攝影機相簿

package com.example.yanlei.picture;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import java.io.File;import java.io.IOException;import android.app.Activity;import android.content.Intent;import android.database.Cursor;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Matrix;import android.media.ExifInterface;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.provider.MediaStore;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.ImageView;import android.widget.Toast;public class MainActivity extends AppCompatActivity {    private static final String tag = "MainActivity";    private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;    private static final int PICK_IMAGE_ACTIVITY_REQUEST_CODE = 200;    private ImageView imageView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        imageView = (ImageView) this.findViewById(R.id.image_view);        Button button = (Button) this.findViewById(R.id.open_camera);        button.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                takePicture();            }        });        Button pickImageBtn = (Button) this.findViewById(R.id.pick_image);        pickImageBtn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                openAlbum();            }        });    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_main, menu);        return true;    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroidManifest.xml.        int id = item.getItemId();        //noinspection SimplifiableIfStatement        if (id == R.id.action_settings) {            return true;        }        return super.onOptionsItemSelected(item);    }    private static String picFileFullName;    //拍照    public void takePicture(){        String state = Environment.getExternalStorageState();        if (state.equals(Environment.MEDIA_MOUNTED)) {            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);            File outDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);            if (!outDir.exists()) {                outDir.mkdirs();            }            File outFile =  new File(outDir, System.currentTimeMillis() + ".jpg");            picFileFullName = outFile.getAbsolutePath();            intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(outFile));            intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);            startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);        } else{            Log.e(tag, "請確認已經插入SD卡");        }    }    //開啟本地相簿    public void openAlbum(){        Intent intent = new Intent();        intent.setType("image/*");        intent.setAction(Intent.ACTION_GET_CONTENT);        this.startActivityForResult(intent, PICK_IMAGE_ACTIVITY_REQUEST_CODE);    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {            if (resultCode == RESULT_OK) {                Log.e(tag, "擷取圖片成功，path="+picFileFullName);                toast("擷取圖片成功，path="+picFileFullName);                setImageView(picFileFullName);            } else if (resultCode == RESULT_CANCELED) {                // 使用者取消了映像捕獲            } else {                // 映像捕獲失敗，提示使用者                Log.e(tag, "拍照失敗");            }        } else if (requestCode == PICK_IMAGE_ACTIVITY_REQUEST_CODE) {            if (resultCode == RESULT_OK) {                Uri uri = data.getData();                if(uri != null){                    String realPath = getRealPathFromURI(uri);                    Log.e(tag, "擷取圖片成功，path="+realPath);                    toast("擷取圖片成功，path="+realPath);                    setImageView(realPath);                }else{                    Log.e(tag, "從相簿擷取圖片失敗");                }            }        }    }    private void setImageView(String realPath){        Bitmap bmp = BitmapFactory.decodeFile(realPath);        int degree = readPictureDegree(realPath);        if(degree <= 0){            imageView.setImageBitmap(bmp);        }else{            Log.e(tag, "rotate:"+degree);            //建立操作圖片是用的matrix對象            Matrix matrix=new Matrix();            //旋轉圖片動作            matrix.postRotate(degree);            //建立新圖片            Bitmap resizedBitmap=Bitmap.createBitmap(bmp,0,0,bmp.getWidth(),bmp.getHeight(),matrix,true);            imageView.setImageBitmap(resizedBitmap);        }    }    /**     * This method is used to get real path of file from from uri<br/>     * http://stackoverflow.com/questions/11591825/how-to-get-image-path-just-captured-from-camera     *     * @param contentUri     * @return String     */    public String getRealPathFromURI(Uri contentUri){        try{            String[] proj = {MediaStore.Images.Media.DATA};            // Do not call Cursor.close() on a cursor obtained using this method,            // because the activity will do that for you at the appropriate time            Cursor cursor = this.managedQuery(contentUri, proj, null, null, null);            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);            cursor.moveToFirst();            return cursor.getString(column_index);        }catch (Exception e){            return contentUri.getPath();        }    }    /**     * 讀取照片exif資訊中的旋轉角度<br/>     * http://www.eoeandroid.com/thread-196978-1-1.html     *     * @param path 照片路徑     * @return角度     */    public static int readPictureDegree(String path) {        int degree  = 0;        try {            ExifInterface exifInterface = new ExifInterface(path);            int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);            switch (orientation) {                case ExifInterface.ORIENTATION_ROTATE_90:                    degree = 90;                    break;                case ExifInterface.ORIENTATION_ROTATE_180:                    degree = 180;                    break;                case ExifInterface.ORIENTATION_ROTATE_270:                    degree = 270;                    break;            }        } catch (IOException e) {            e.printStackTrace();        }        return degree;    }    public void toast(String msg){        Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();    }}

<LinearLayout 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:orientation="vertical">    <Button        android:id="@+id/open_camera"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="開啟網路攝影機"        />    <Button        android:id="@+id/pick_image"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="開啟相簿"        />    <ImageView        android:id="@+id/image_view"        android:layout_width="300dp"        android:layout_height="300dp"        android:scaleType="fitCenter"/></LinearLayout>