系统相机系统相册裁剪【示例】

Activity 解耦版

   
   
public class MainActivity2 extends ListActivity {
    
    public static final String fileSavePath = Environment.getExternalStorageDirectory().getPath() + File.separator;
    
    public static final String tempFileSavePath = fileSavePath + "temp.png";
    
    public static final String tempCropFileSavePath = fileSavePath + "temp_crop.png";
    
    public static final int REQUEST_CODE_0 = 1100;
    
    public static final int REQUEST_CODE_1 = 1101;
    
    public static final int REQUEST_CODE_2 = 1102;
    
    public static final int REQUEST_CODE_3 = 1103;
    
    public static final int REQUEST_CODE_4 = 1104;
    
    public static final int REQUEST_CODE_5 = 1105;
    
    public static final int REQUEST_CODE_6 = 1106;
    
    public static final int REQUEST_CODE_11 = 1111;
    
    public static final int REQUEST_CODE_12 = 1112;
    
    private TextView tv;
    
    private ImageView iv;
    
    
    
    protected void onCreate(Bundle savedInstanceState) {
    
    super.onCreate(savedInstanceState);
    
    int size = ((ActivityManager) this.getSystemService(Context.ACTIVITY_SERVICE)).getMemoryClass();
    
    Toast.makeText(this, "内存 " + size, Toast.LENGTH_SHORT).show();
    
    
    
    String[] array = {"使用相机拍照并获取返回的照片\n注意返回的并非原图，照片会自动被压缩", //
    
    "使用相机拍照并将照片保存在指定的位置\n注意这时在指定位置保存的是原图",//
    
    "调用系统图库APP的裁剪图片功能，将图片裁剪为指定大小\n将裁剪后的图片通过onActivityResult返回",//
    
    "调用系统图库APP的裁剪图片功能，将图片裁剪为指定大小\n将裁剪后的照片保存在指定的位置",//
    
    "从系统图库APP中获取图片，这里获取的是原图",//
    
    "从系统图库APP中获取图片，并将照片裁剪为指定大小\n将裁剪后的图片通过onActivityResult返回",//
    
    "从系统图库APP中获取图片，并将照片裁剪为指定大小\n将裁剪后的照片保存在指定的位置",};
    
    for (int i = 0; i < array.length; i++) {
    
    array[i] = i + "、" + array[i];
    
    }
    
    iv = new ImageView(this);
    
    //iv.setScaleType(ImageView.ScaleType.CENTER_CROP);
    
    getListView().addFooterView(iv);
    
    tv = new TextView(this);
    
    tv.setTextColor(Color.BLUE);
    
    getListView().addFooterView(tv);
    
    setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, new ArrayList<String>(Arrays.asList(array))));
    
    }
    
    
    
    @Override
    
    protected void onListItemClick(ListView l, View v, int position, long id) {
    
    switch (position) {
    
    case 0:
    
    PhotoUtils.startCamera(this, REQUEST_CODE_0);
    
    break;
    
    case 1:
    
    PhotoUtils.startCameraAndCrop(this, REQUEST_CODE_1);
    
    break;
    
    case 2:
    
    PhotoUtils.startCameraAndCrop(this, REQUEST_CODE_2);
    
    break;
    
    case 3:
    
    PhotoUtils.startCameraAndCrop(this, REQUEST_CODE_3);
    
    break;
    
    case 4:
    
    PhotoUtils.startAlbum(this, REQUEST_CODE_4);
    
    break;
    
    case 5:
    
    PhotoUtils.startAlbum(this, REQUEST_CODE_5);
    
    break;
    
    case 6:
    
    PhotoUtils.startAlbum(this, REQUEST_CODE_6);
    
    break;
    
    }
    
    }
    
    
    
    @Override
    
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    
    super.onActivityResult(requestCode, resultCode, data);
    
    if (resultCode == RESULT_CANCELED) {//0
    
    Toast.makeText(this, "结果码：" + requestCode + " RESULT_CANCELED", Toast.LENGTH_SHORT).show();
    
    return;
    
    } else if (resultCode == RESULT_OK) {//-1
    
    Toast.makeText(this, "结果码：" + requestCode + " RESULT_OK", Toast.LENGTH_SHORT).show();
    
    }
    
    //*******************************************************************************************************************
    
    switch (requestCode) {
    
    case REQUEST_CODE_0:// 注意，返回的并非原图，照片会自动被压缩！
    
    Bitmap bitmap = (Bitmap) data.getExtras().get("data");
    
    if (bitmap != null) {
    
    tv.append("返回的Bitmap的尺寸为" + bitmap.getWidth() + " * " + bitmap.getHeight() + "\n");
    
    iv.setImageBitmap(bitmap);
    
    }
    
    break;
    
    case REQUEST_CODE_1://注意，这里返回的data为null，这时在指定位置保存的是原图
    
    Bitmap bitmap1 = BitmapFactory.decodeFile(tempFileSavePath);
    
    if (bitmap1 != null) {
    
    iv.setImageBitmap(bitmap1);
    
    tv.append("保存的Bitmap的尺寸为" + bitmap1.getWidth() + " * " + bitmap1.getHeight() + "\n");
    
    }
    
    break;
    
    case REQUEST_CODE_2://
    
    case REQUEST_CODE_3:
    
    Bitmap bitmap2 = BitmapFactory.decodeFile(tempFileSavePath);
    
    if (bitmap2 != null) {
    
    tv.append("裁剪前的Bitmap的尺寸为" + bitmap2.getWidth() + " * " + bitmap2.getHeight() + "\n");
    
    Uri fromUri = Uri.fromFile(new File(tempFileSavePath));
    
    if (requestCode == REQUEST_CODE_2) PhotoUtils.cropImage(this, REQUEST_CODE_11, fromUri);
    
    else {
    
    Uri toUri = Uri.fromFile(new File(tempCropFileSavePath));
    
    PhotoUtils.cropImage(this, REQUEST_CODE_12, fromUri, toUri);
    
    }
    
    }
    
    break;
    
    //
    
    //*******************************************************************************************************************
    
    //
    
    case REQUEST_CODE_4:
    
    try {
    
    Uri fromUri = data.getData();
    
    Bitmap bitmap4 = MediaStore.Images.Media.getBitmap(getContentResolver(), fromUri);
    
    if (bitmap4 != null) {
    
    tv.append("返回的Bitmap的尺寸为" + bitmap4.getWidth() + " * " + bitmap4.getHeight() + "\n");
    
    iv.setImageBitmap(bitmap4);
    
    }
    
    } catch (IOException e) {
    
    e.printStackTrace();
    
    }
    
    break;
    
    case REQUEST_CODE_5:
    
    case REQUEST_CODE_6:
    
    try {
    
    Bitmap bitmap5 = MediaStore.Images.Media.getBitmap(getContentResolver(), data.getData());
    
    if (bitmap5 != null) {
    
    tv.append("裁剪前的Bitmap的尺寸为" + bitmap5.getWidth() + " * " + bitmap5.getHeight() + "\n");
    
    if (requestCode == REQUEST_CODE_5) PhotoUtils.cropImage(this, REQUEST_CODE_11, data.getData());
    
    else {
    
    Uri toUri = Uri.fromFile(new File(tempCropFileSavePath));
    
    PhotoUtils.cropImage(this, REQUEST_CODE_12, data.getData(), toUri);
    
    }
    
    }
    
    } catch (IOException e) {
    
    e.printStackTrace();
    
    }
    
    break;
    
    //
    
    //*******************************************************************************************************************
    
    //
    
    case REQUEST_CODE_11: // 将裁剪后的图片通过onActivityResult中的Intent返回
    
    Bitmap bitmap11 = (Bitmap) data.getParcelableExtra("data");
    
    if (bitmap11 != null) {
    
    tv.append("裁剪后的Bitmap的尺寸为" + bitmap11.getWidth() + " * " + bitmap11.getHeight() + "\n");
    
    iv.setImageBitmap(bitmap11);
    
    }
    
    break;
    
    case REQUEST_CODE_12: //将裁剪后的图片通过指定的Uri返回
    
    try {
    
    Uri tempCropFileUri = Uri.fromFile(new File(tempCropFileSavePath));
    
    Bitmap bitmap12 = MediaStore.Images.Media.getBitmap(getContentResolver(), tempCropFileUri);
    
    tv.append("指定Uri后裁剪后的尺寸为" + bitmap12.getWidth() + " * " + bitmap12.getHeight() + "\n");
    
    iv.setImageBitmap(bitmap12);
    
    } catch (IOException e) {
    
    e.printStackTrace();
    
    }
    
    break;
    
    }
    
    }
    
    }

工具类

   
   
public class PhotoUtils {
    
    
    
    public static final String tempFileSavePath = Environment.getExternalStorageDirectory().getPath() + File.separator + "temp.png";
    
    
    
    //**************************************************************************************************************************
    
    // 使用相机拍照
    
    //**************************************************************************************************************************
    
    
    
    /**
    
     * 使用相机拍照并获取返回的照片
    
     * 注意返回的并非原图，照片会自动被压缩
    
     */
    
    public static void startCamera(Activity activity, int requestCode) {
    
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);//调用系统相机拍照
    
    activity.startActivityForResult(intent, requestCode);
    
    }
    
    
    
    /**
    
     * 使用相机拍照并将照片保存在指定的位置
    
     * 注意这时在指定位置保存的是原图
    
     */
    
    public static void startCameraAndCrop(Activity activity, int requestCode) {
    
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);//调用系统相机拍照
    
    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(tempFileSavePath)));//将返回的数据保存到指定位置
    
    activity.startActivityForResult(intent, requestCode);
    
    }
    
    
    
    //**************************************************************************************************************************
    
    // 从相册中获取图片
    
    //**************************************************************************************************************************
    
    
    
    public static void startAlbum(Activity activity, int requestCode) {
    
    Intent intent = new Intent(Intent.ACTION_PICK);
    
    //intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
    
    intent.setType("image/*");//视频【"video/*"】
    
    activity.startActivityForResult(intent, requestCode);
    
    }
    
    
    
    //**************************************************************************************************************************
    
    // 裁剪图片
    
    //**************************************************************************************************************************
    
    
    
    /**
    
     * 调用系统图库APP的裁剪图片功能，将指定Uri中的图片裁剪为指定大小
    
     */
    
    public static void cropImage(Activity activity, int requestCode, Uri fromUri) {
    
    cropImage(activity, requestCode, fromUri, 288, 288, null);
    
    }
    
    
    
    /**
    
     * 将裁剪后的照片保存在指定的位置
    
     * 注意一个大bug，当指定toUri时，设置的裁剪大小是无效的。
    
     */
    
    public static void cropImage(Activity activity, int requestCode, Uri fromUri, Uri toUri) {
    
    cropImage(activity, requestCode, fromUri, 288, 288, toUri);
    
    }
    
    
    
    /**
    
     * 调用系统图库APP的裁剪图片功能，将指定图片裁剪为指定大小
    
     */
    
    public static void cropImage(Activity activity, int requestCode, Uri fromUri, int desWidth, int desHeight, Uri toUri) {
    
    if (fromUri == null) return;
    
    //指定action是使用系统图库裁剪图片
    
    Intent intent = new Intent("com.android.camera.action.CROP");
    
    intent.setDataAndType(fromUri, "image/*");
    
    //设置在开启的Intent中，显示的VIEW可裁剪
    
    intent.putExtra("crop", "true");
    
    //设置裁剪比例及裁剪图片的具体宽高
    
    intent.putExtra("aspectX", 1);
    
    intent.putExtra("aspectY", 1);
    
    intent.putExtra("outputX", desWidth);
    
    intent.putExtra("outputY", desHeight);
    
    //设置是否允许拉伸
    
    intent.putExtra("scale", true);
    
    intent.putExtra("scaleUpIfNeeded", true);
    
    //设置输出格式
    
    intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
    
    //设置是否需要人脸识别，默认不需要设置
    
    intent.putExtra("noFaceDetection", true);
    
    //设置是否返回数据
    
    if (toUri == null) {
    
    //如果设置为true，那么便不会在给定的uri中获取到裁剪的图片，这里是将数据返回到了onActivityResult中的intent中了
    
    intent.putExtra("return-data", true);
    
    } else {
    
    //如果要在给定的uri中返回图片，则必须设置为false。注意：要防止裁减前图片的uri与保存时图片的uri相同
    
    intent.putExtra("return-data", false);
    
    intent.putExtra(MediaStore.EXTRA_OUTPUT, toUri);
    
    }
    
    activity.startActivityForResult(intent, requestCode);
    
    }
    
    }

Activity 耦合版

   
   
public class MainActivity extends ListActivity {
    
    public static final String fileSavePath = Environment.getExternalStorageDirectory().getPath() + File.separator;
    
    public static final String tempFileSavePath = fileSavePath + "temp.png";
    
    public static final String tempCropFileSavePath = fileSavePath + "temp_crop.png";
    
    public static final int REQUEST_CODE_0 = 1100;
    
    public static final int REQUEST_CODE_1 = 1101;
    
    public static final int REQUEST_CODE_11 = 1111;
    
    public static final int REQUEST_CODE_12 = 1112;
    
    public static final int REQUEST_CODE_4 = 1104;
    
    public static final int REQUEST_CODE_5 = 1105;
    
    private TextView tv;
    
    private ImageView iv;
    
    private boolean isCrop;
    
    private boolean isSaveToUri;
    
    
    
    protected void onCreate(Bundle savedInstanceState) {
    
    super.onCreate(savedInstanceState);
    
    int size=((ActivityManager)this.getSystemService(Context.ACTIVITY_SERVICE)).getMemoryClass();
    
    Toast.makeText(this, "内存 "+size, Toast.LENGTH_SHORT).show();
    
    
    
    
    
    String[] array = {"使用相机拍照并获取返回的照片\n注意返回的并非原图，照片会自动被压缩", //
    
    "使用相机拍照并将照片保存在指定的位置\n注意这时在指定位置保存的是原图",//
    
    "调用系统图库APP的裁剪图片功能，将图片裁剪为指定大小\n将裁剪后的图片通过onActivityResult返回",//
    
    "调用系统图库APP的裁剪图片功能，将图片裁剪为指定大小\n将裁剪后的照片保存在指定的位置",//
    
    "从系统图库APP中获取图片，这里获取的是原图",//
    
    "从系统图库APP中获取图片，并将照片裁剪为指定大小\n将裁剪后的图片通过onActivityResult返回",//
    
    "从系统图库APP中获取图片，并将照片裁剪为指定大小\n将裁剪后的照片保存在指定的位置",};
    
    for (int i = 0; i < array.length; i++) {
    
    array[i] = i + "、" + array[i];
    
    }
    
    iv = new ImageView(this);
    
    //iv.setScaleType(ImageView.ScaleType.CENTER_CROP);
    
    getListView().addFooterView(iv);
    
    tv = new TextView(this);
    
    tv.setTextColor(Color.BLUE);
    
    getListView().addFooterView(tv);
    
    setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, new ArrayList<String>(Arrays.asList(array))));
    
    }
    
    
    
    @Override
    
    protected void onListItemClick(ListView l, View v, int position, long id) {
    
    switch (position) {
    
    case 0:
    
    case 1:
    
    case 2:
    
    case 3:
    
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);//调用系统相机拍照
    
    if (position == 0) startActivityForResult(intent, REQUEST_CODE_0);
    
    else {//将返回的数据保存到指定位置
    
    isCrop = (position >= 2);//裁剪
    
    isSaveToUri = (position == 3);
    
    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(tempFileSavePath)));
    
    startActivityForResult(intent, REQUEST_CODE_1);
    
    }
    
    break;
    
    case 4:
    
    case 5:
    
    case 6:
    
    isCrop = (position >= 5);//裁剪
    
    Intent intent2 = new Intent(Intent.ACTION_PICK);
    
    intent2.setType("image/*");
    
    if (position == 4) startActivityForResult(intent2, REQUEST_CODE_4);
    
    else {
    
    isSaveToUri = (position == 6);
    
    startActivityForResult(intent2, REQUEST_CODE_5);
    
    }
    
    break;
    
    }
    
    }
    
    
    
    @Override
    
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    
    super.onActivityResult(requestCode, resultCode, data);
    
    if (resultCode == RESULT_CANCELED) {//0
    
    Toast.makeText(this, "结果码：" + requestCode + " RESULT_CANCELED", Toast.LENGTH_SHORT).show();
    
    return;
    
    } else if (resultCode == RESULT_OK) {//-1
    
    Toast.makeText(this, "结果码：" + requestCode + " RESULT_OK", Toast.LENGTH_SHORT).show();
    
    }
    
    //
    
    //*******************************************************************************************************************
    
    //
    
    switch (requestCode) {
    
    case REQUEST_CODE_0:// 注意，返回的并非原图，照片会自动被压缩！
    
    Bitmap bitmap = (Bitmap) data.getExtras().get("data");
    
    if (bitmap != null) {
    
    tv.append("返回的Bitmap的尺寸为" + bitmap.getWidth() + " * " + bitmap.getHeight() + "\n");
    
    iv.setImageBitmap(bitmap);
    
    }
    
    break;
    
    case REQUEST_CODE_1://注意，这里返回的data为null，这时在指定位置保存的是原图
    
    tv.append("已将Bitmap保存到指定位置，此时 data == null : " + (data == null) + "\n");
    
    Bitmap bitmap1 = BitmapFactory.decodeFile(tempFileSavePath);
    
    if (bitmap1 != null) {
    
    iv.setImageBitmap(bitmap1);
    
    tv.append("裁剪前的Bitmap的尺寸为" + bitmap1.getWidth() + " * " + bitmap1.getHeight() + "\n");
    
    if (isCrop) {
    
    Uri fromUri = Uri.fromFile(new File(tempFileSavePath));
    
    if (!isSaveToUri) cropImage(this, REQUEST_CODE_11, fromUri);
    
    else {
    
    Uri toUri = Uri.fromFile(new File(tempCropFileSavePath));
    
    cropImage(this, REQUEST_CODE_12, fromUri, toUri);
    
    }
    
    }
    
    }
    
    break;
    
    //
    
    //*******************************************************************************************************************
    
    //
    
    case REQUEST_CODE_4:
    
    case REQUEST_CODE_5:
    
    try {
    
    Uri fromUri = data.getData();
    
    Bitmap bitmap4 = MediaStore.Images.Media.getBitmap(getContentResolver(), fromUri);
    
    if (bitmap4 != null) {
    
    tv.append("返回的Bitmap的尺寸为" + bitmap4.getWidth() + " * " + bitmap4.getHeight() + "\n");
    
    if (!isCrop) iv.setImageBitmap(bitmap4);
    
    else {
    
    if (!isSaveToUri) cropImage(this, REQUEST_CODE_11, fromUri);
    
    else {
    
    Uri toUri = Uri.fromFile(new File(tempCropFileSavePath));
    
    cropImage(this, REQUEST_CODE_12, fromUri, toUri);
    
    }
    
    }
    
    }
    
    } catch (IOException e) {
    
    e.printStackTrace();
    
    }
    
    break;
    
    //
    
    //*******************************************************************************************************************
    
    //
    
    case REQUEST_CODE_11: // 将裁剪后的图片通过onActivityResult中的Intent返回
    
    Bitmap bitmap5 = (Bitmap) data.getParcelableExtra("data");
    
    if (bitmap5 != null) {
    
    tv.append("裁剪后的Bitmap的尺寸为" + bitmap5.getWidth() + " * " + bitmap5.getHeight() + "\n");
    
    iv.setImageBitmap(bitmap5);
    
    }
    
    break;
    
    case REQUEST_CODE_12: //将裁剪后的图片通过指定的Uri返回
    
    try {
    
    Uri tempCropFileUri = Uri.fromFile(new File(tempCropFileSavePath));
    
    Bitmap bitmap6 = MediaStore.Images.Media.getBitmap(getContentResolver(), tempCropFileUri);
    
    tv.append("指定Uri后裁剪后的尺寸为" + bitmap6.getWidth() + " * " + bitmap6.getHeight() + "\n");
    
    iv.setImageBitmap(bitmap6);
    
    } catch (IOException e) {
    
    e.printStackTrace();
    
    }
    
    break;
    
    }
    
    }
    
    
    
    /**
    
     * 调用系统图库APP的裁剪图片功能，将指定Uri中的图片裁剪为指定大小
    
     */
    
    public static void cropImage(Activity activity, int requestCode, Uri fromUri) {
    
    cropImage(activity, requestCode, fromUri, 144, 144, null);
    
    }
    
    
    
    /**
    
     * 将裁剪后的照片保存在指定的位置
    
     */
    
    public static void cropImage(Activity activity, int requestCode, Uri fromUri, Uri toUri) {
    
    cropImage(activity, requestCode, fromUri, 144, 144, toUri);
    
    }
    
    
    
    /**
    
     * 调用系统图库APP的裁剪图片功能，将指定图片裁剪为指定大小
    
     */
    
    public static void cropImage(Activity activity, int requestCode, Uri fromUri, int desWidth, int desHeight, Uri toUri) {
    
    if (fromUri == null) return;
    
    //指定action是使用系统图库裁剪图片
    
    Intent intent = new Intent("com.android.camera.action.CROP");
    
    intent.setDataAndType(fromUri, "image/*");
    
    //设置在开启的Intent中，显示的VIEW可裁剪
    
    intent.putExtra("crop", "true");
    
    //设置裁剪比例及裁剪图片的具体宽高
    
    intent.putExtra("aspectX", 1);
    
    intent.putExtra("aspectY", 1);
    
    intent.putExtra("outputX", desWidth);
    
    intent.putExtra("outputY", desHeight);
    
    //设置是否允许拉伸
    
    intent.putExtra("scale", true);
    
    intent.putExtra("scaleUpIfNeeded", true);
    
    //设置输出格式
    
    intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
    
    //设置是否需要人脸识别，默认不需要设置
    
    intent.putExtra("noFaceDetection", true);
    
    //设置是否返回数据
    
    if (toUri == null) {
    
    //如果设置为true，那么便不会在给定的uri中获取到裁剪的图片，这里是将数据返回到了onActivityResult中的intent中了
    
    intent.putExtra("return-data", true);
    
    } else {
    
    //如果要在给定的uri中返回图片，则必须设置为false。注意：要防止裁减前图片的uri与保存时图片的uri相同
    
    intent.putExtra("return-data", false);
    
    intent.putExtra(MediaStore.EXTRA_OUTPUT, toUri);
    
    }
    
    activity.startActivityForResult(intent, requestCode);
    
    }
    
    }

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系统相机系统相册裁剪【示例】

Activity 解耦版

工具类

Activity 耦合版

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