在Android中使用自定义对话框拍摄照片或从画廊中拍摄

Question

我正在进行对话，以便能够上传捕获图像的图片，或者从图库中选择。但是，当裁剪图像时，我的应用程序强制关闭。这是我开发的一种方法：

 public void uploadPO() {
    ivImage1 = (ImageView) findViewById(R.id.iv_image1);
    etImage1 = (EditText) findViewById(R.id.et_image1);
    ivImage2 = (ImageView) findViewById(R.id.iv_image2);
    etImage2 = (EditText) findViewById(R.id.et_image2);
    ivImage3 = (ImageView) findViewById(R.id.iv_image3);
    etImage3 = (EditText) findViewById(R.id.et_image3);
    ivImage4 = (ImageView) findViewById(R.id.iv_image4);
    etImage4 = (EditText) findViewById(R.id.et_image4);

    final Dialog d = new Dialog(TransDetailActivity.this);
    d.requestWindowFeature(Window.FEATURE_NO_TITLE);
    d.getWindow().setBackgroundDrawable(new ColorDrawable((Color.TRANSPARENT)));
    d.setContentView(R.layout.upload_po);
    final FrameLayout takePicture = (FrameLayout) d.findViewById(R.id.ambil_gambar);
    final FrameLayout pilihGambar = (FrameLayout) d.findViewById(R.id.pilih_di_gallery);
    final FrameLayout batal = (FrameLayout) d.findViewById(R.id.batal);
    final FrameLayout ok = (FrameLayout) d.findViewById(R.id.OK);
    takePicture.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            selectFrom(PICK_FROM_CAMERA);
        }
    });
    pilihGambar.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            selectFrom(PICK_FROM_GALLERY);
        }
    });
    batal.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            d.dismiss();
        }
    });
    ok.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            labelImage1 = etImage1.getText().toString();
            labelImage2 = etImage1.getText().toString();
            labelImage3 = etImage1.getText().toString();
            labelImage4 = etImage1.getText().toString();

            if (ivImage1 == null || ivImage2 == null || ivImage3 == null || ivImage4 == null) {
                Toast.makeText(getApplicationContext(), "Masukkan Empat Gambar", Toast.LENGTH_SHORT).show();
            } else if (labelImage1.trim().equals("") || labelImage2.trim().equals("") || labelImage3.trim().equals("") || labelImage4.trim().equals("")) {
                Toast.makeText(getApplicationContext(), "Masukkan Label pada Setiap Gambar", Toast.LENGTH_SHORT).show();
            } else {
                uploadToApi();
            }
        }
    });
    d.show();
}

private void selectFrom(int from) {
    if (from == PICK_FROM_CAMERA) {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
        File output = new File(dir, "Avatar" + String.valueOf(System.currentTimeMillis()) + ".jpeg");
        mImageCaptureUri = Uri.fromFile(output);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, mImageCaptureUri);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(output));
        try {
            intent.putExtra("return-data", true);
            startActivityForResult(intent, from);
        } catch (ActivityNotFoundException e) {
            e.printStackTrace();
        }
    } else {
        if (Build.VERSION.SDK_INT < 19) {
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent, "Complete action using"), from);
        } else {
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_PICK);
            startActivityForResult(Intent.createChooser(intent, "Complete action using"), from);
        }
    }
}

private void doCrop() {
    Intent intent = new Intent("com.android.camera.action.CROP");
    intent.setType("image/*");
    List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent, 0);
    int size = list.size();
    if (size == 0) {
        Toast.makeText(getApplicationContext(), "Can not find image crop app", Toast.LENGTH_SHORT).show();
        intent.setData(mImageCaptureUri);
        intent.putExtra("return-data", true);
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        intent.putExtra("crop", "true");
        intent.putExtra("outputX", 256);
        intent.putExtra("outputY", 256);
        startActivityForResult(intent, CROP_FROM_CAMERA);
        return;
    } else {
        intent.setData(mImageCaptureUri);
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        intent.putExtra("outputX", 256);
        intent.putExtra("outputY", 256);
        intent.putExtra("crop", "true");
        intent.putExtra("return-data", true);
        ResolveInfo res = list.get(0);
        intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
        startActivityForResult(intent, CROP_FROM_CAMERA);
    }
}


@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    //Toast.makeText(getActivity(),""+resultCode+"", Toast.LENGTH_SHORT).show();
    if (data != null) {
        if (requestCode == PICK_FROM_CAMERA) {
            doCrop();
        } else if (requestCode == PICK_FROM_GALLERY) {
            mImageCaptureUri = data.getData();
            doCrop();
        } else if (requestCode == CROP_FROM_CAMERA) {
            Bundle extras = data.getExtras();
            if (extras != null) {
                Bitmap photo = extras.getParcelable("data");

               /*Picasso.with(this)
                        .load()
                        .transform(new CircleTransform())
                        .into(imageProfile);*/

                if (statusOnUpload == 1) {
                    ivImage1.setImageBitmap(photo);
                } else if (statusOnUpload == 2) {
                    ivImage2.setImageBitmap(photo);
                } else if (statusOnUpload == 3) {
                    ivImage3.setImageBitmap(photo);
                } else if (statusOnUpload == 4) {
                    ivImage4.setImageBitmap(photo);
                }


                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                photo.compress(Bitmap.CompressFormat.JPEG, 80, baos);
                byte[] b = baos.toByteArray();

                if (statusOnUpload == 1) {
                    encodedImageString1 = Base64.encodeToString(b, Base64.NO_WRAP);
                    Log.d(TAG, encodedImageString1.toString());
                } else if (statusOnUpload == 2) {
                    encodedImageString2 = Base64.encodeToString(b, Base64.NO_WRAP);
                } else if (statusOnUpload == 3) {
                    encodedImageString3 = Base64.encodeToString(b, Base64.NO_WRAP);
                } else if (statusOnUpload == 4) {
                    encodedImageString4 = Base64.encodeToString(b, Base64.NO_WRAP);
                }

                //Log.i("")

                //Toast.makeText(getApplicationContext(),""+encodedImageString+"",Toast.LENGTH_SHORT).show();
                //DialogDeal dialogDeal=new DialogDeal(EditProfileActivity.this,"imageBase64",encodedImageString,"Cancel");
                //dialogDeal.show();

            } else { //LogManager.logI("extras == null");}}}}

这是我的布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/corner_white">

<TextView
    android:id="@+id/tittle"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="20dp"
    android:text="Upload Purchase Order"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="@color/blue" />

<View
    android:id="@+id/line"
    android:layout_width="match_parent"
    android:layout_height="2dp"
    android:layout_below="@+id/tittle"
    android:layout_marginTop="20dp"
    android:background="@color/blue" />

<LinearLayout
    android:id="@+id/menu_upload"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/line"
    android:orientation="horizontal">

    <FrameLayout
        android:id="@+id/ambil_gambar"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_weight="1">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_gravity="center"
            android:text="Ambil Gambar"
            android:textAppearance="?android:attr/textAppearanceSmall" />
    </FrameLayout>

    <View
        android:id="@+id/line2"
        android:layout_width="2dp"
        android:layout_height="match_parent"
        android:layout_below="@+id/depan"
        android:background="@color/grey" />

    <FrameLayout
        android:id="@+id/pilih_di_gallery"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_weight="1">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="Pilih di Gallery"
            android:textAppearance="?android:attr/textAppearanceSmall" />/>
    </FrameLayout>
</LinearLayout>

<View
    android:id="@+id/line3"
    android:layout_width="match_parent"
    android:layout_height="2dp"
    android:layout_below="@id/menu_upload"
    android:background="@color/blue" />

<TableLayout
    android:id="@+id/gambar_upload"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/line3"
    android:shrinkColumns="*"
    android:stretchColumns="*"
    android:columnCount="2"
    android:rowCount="2">

    <TableRow
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <RelativeLayout
            android:id="@+id/rl_image1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <ImageView
                android:id="@+id/iv_image1"
                android:layout_width="180dp"
                android:layout_height="120dp"
                android:layout_marginBottom="5dp"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:layout_marginRight="10dp"
                android:src="@mipmap/addmorepicture"
                android:layout_gravity="left|center_vertical" />

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="40dp"
                android:background="#809E9E9E"
                android:layout_alignBottom="@id/iv_image1"
                android:layout_alignLeft="@id/iv_image1"
                android:layout_alignStart="@id/iv_image1"
                android:layout_alignRight="@id/iv_image1"
                android:layout_alignEnd="@id/iv_image1"
                android:layout_gravity="center_horizontal|bottom">

                <EditText
                    android:id="@id/et_image1"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:hint="Label Image 1"
                    android:textAppearance="?android:attr/textAppearanceSmall"/>
            </FrameLayout>
        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/rl_image2"
            android:visibility="gone"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <ImageView
                android:id="@+id/iv_image2"
                android:layout_width="180dp"
                android:layout_height="120dp"
                android:layout_marginBottom="5dp"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:layout_marginRight="10dp"
                android:src="@mipmap/addmorepicture" />

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="40dp"
                android:background="#809E9E9E"
                android:layout_alignBottom="@id/iv_image2"
                android:layout_alignLeft="@id/iv_image2"
                android:layout_alignStart="@id/iv_image2"
                android:layout_alignRight="@id/iv_image2"
                android:layout_alignEnd="@id/iv_image2">

                <EditText
                    android:id="@id/et_image2"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:hint="Label Image 2"
                    android:textAppearance="?android:attr/textAppearanceSmall"/>
            </FrameLayout>
        </RelativeLayout>
    </TableRow>

    <TableRow
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <RelativeLayout
            android:id="@+id/rl_image3"
            android:visibility="gone"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <ImageView
                android:id="@+id/iv_image3"
                android:layout_width="180dp"
                android:layout_height="120dp"
                android:layout_marginBottom="5dp"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:layout_marginRight="10dp"
                android:src="@mipmap/addmorepicture"
                android:layout_gravity="left|center_vertical" />

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="40dp"
                android:background="#809E9E9E"
                android:layout_alignBottom="@id/iv_image3"
                android:layout_alignLeft="@+id/iv_image3"
                android:layout_alignStart="@+id/iv_image3"
                android:layout_alignRight="@+id/iv_image3"
                android:layout_alignEnd="@+id/iv_image3"
                android:layout_gravity="center_horizontal|bottom">

                <EditText
                    android:id="@id/et_image3"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:hint="Label Image 3"
                    android:textAppearance="?android:attr/textAppearanceSmall"/>
            </FrameLayout>
        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/rl_image4"
            android:visibility="gone"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <ImageView
                android:id="@+id/iv_image4"
                android:layout_width="180dp"
                android:layout_height="120dp"
                android:layout_marginBottom="5dp"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:layout_marginRight="10dp"
                android:src="@mipmap/addmorepicture" />

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="40dp"
                android:background="#809E9E9E"
                android:layout_alignBottom="@id/iv_image4"
                android:layout_alignLeft="@id/iv_image4"
                android:layout_alignStart="@id/iv_image4"
                android:layout_alignRight="@id/iv_image4"
                android:layout_alignEnd="@id/iv_image4">

                <EditText
                    android:id="@id/et_image3"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:hint="Label Image 3"
                    android:textAppearance="?android:attr/textAppearanceSmall"/>
            </FrameLayout>
        </RelativeLayout>
    </TableRow>
</TableLayout>

<View
    android:id="@+id/line4"
    android:layout_width="match_parent"
    android:layout_height="2dp"
    android:layout_below="@+id/gambar_upload"
    android:background="@color/blue" />

<LinearLayout
    android:id="@+id/aksi"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/line4"
    android:orientation="horizontal">

    <FrameLayout
        android:id="@+id/batal"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_weight="1">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_gravity="center"
            android:text="Batal"
            android:textAppearance="?android:attr/textAppearanceSmall" />
    </FrameLayout>

    <View
        android:id="@+id/line5"
        android:layout_width="2dp"
        android:layout_height="match_parent"
        android:layout_below="@+id/depan"
        android:background="@color/grey" />

    <FrameLayout
        android:id="@+id/OK"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_weight="1">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="OK"
            android:textAppearance="?android:attr/textAppearanceSmall" />/>
    </FrameLayout>
</LinearLayout>

然后，这是错误的迹象：

 02-06 11:01:34.836 11791-11791/blablabla.wkwk E/AndroidRuntime: FATAL EXCEPTION: main

  java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=3, result=-1, data=Intent { (has extras) }} to activity {blablabla.wkwk/codelabs.baf.TransDetailActivity}: java.lang.NullPointerException
  at android.app.ActivityThread.deliverResults(ActivityThread.java:3488)
  at android.app.ActivityThread.handleSendResult(ActivityThread.java:3531)
  at android.app.ActivityThread.access$1100(ActivityThread.java:156)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1388)
  at android.os.Handler.dispatchMessage(Handler.java:99)
  at android.os.Looper.loop(Looper.java:153)
  at android.app.ActivityThread.main(ActivityThread.java:5299)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:511)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
  at dalvik.system.NativeStart.main(Native Method)
  Caused by: java.lang.NullPointerException
  at blablabla.wkwk.TransDetailActivity.onActivityResult(TransDetailActivity.java:531)
  at android.app.Activity.dispatchActivityResult(Activity.java:5371)
  at android.app.ActivityThread.deliverResults(ActivityThread.java:3484)
  at android.app.ActivityThread.handleSendResult(ActivityThread.java:3531) 
  at android.app.ActivityThread.access$1100(ActivityThread.java:156) 
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1388) 
  at android.os.Handler.dispatchMessage(Handler.java:99) 
  at android.os.Looper.loop(Looper.java:153) 
  at android.app.ActivityThread.main(ActivityThread.java:5299) 
  at java.lang.reflect.Method.invokeNative(Native Method) 
  at java.lang.reflect.Method.invoke(Method.java:511) 
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) 
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) 
  at dalvik.system.NativeStart.main(Native Method)

注意，我只是从另一个类中重新编写这个方法而没有对话框，这是有用的。有人能帮助我吗？

Answer 1

看起来您只需要在对话框上调用d.setContentView()，并在调用 public void uploadPO() { final Dialog d = new Dialog(TransDetailActivity.this); d.requestWindowFeature(Window.FEATURE_NO_TITLE); d.getWindow().setBackgroundDrawable(new ColorDrawable((Color.TRANSPARENT))); d.setContentView(R.layout.upload_po); final FrameLayout takePicture = (FrameLayout) d.findViewById(R.id.ambil_gambar); final FrameLayout pilihGambar = (FrameLayout) d.findViewById(R.id.pilih_di_gallery); final FrameLayout batal = (FrameLayout) d.findViewById(R.id.batal); final FrameLayout ok = (FrameLayout) d.findViewById(R.id.OK); ivImage1 = (ImageView) d.findViewById(R.id.iv_image1); etImage1 = (EditText) d.findViewById(R.id.et_image1); ivImage2 = (ImageView) d.findViewById(R.id.iv_image2); etImage2 = (EditText) d.findViewById(R.id.et_image2); ivImage3 = (ImageView) d.findViewById(R.id.iv_image3); etImage3 = (EditText) d.findViewById(R.id.et_image3); ivImage4 = (ImageView) d.findViewById(R.id.iv_image4); etImage4 = (EditText) d.findViewById(R.id.et_image4); //........................ 后将所有通话置于：

TABLE `books`
  `id` smallint(5) unsigned NOT NULL AUTO_INCREMENT
  `title` varchar(25) COLLATE utf8_unicode_ci NOT NULL DEFAULT ''
  `author` varchar(25) COLLATE utf8_unicode_ci NOT NULL DEFAULT ''
  PRIMARY KEY (`id`)
  UNIQUE KEY `title` (`title`)

TABLE `chapters`
  `id` smallint(5) unsigned NOT NULL AUTO_INCREMENT
  `book_id` smallint(5) unsigned NOT NULL DEFAULT '0'
  `number` smallint(5) unsigned NOT NULL DEFAULT '0'
  `title` varchar(50) COLLATE utf8_unicode_ci NOT NULL DEFAULT ''
  PRIMARY KEY (`id`)
  KEY `book_id` (`book_id`) -> Foreign on `books`.`id`

TABLE `pages`
  `id` smallint(5) unsigned NOT NULL AUTO_INCREMENT
  `book_id` smallint(5) unsigned NOT NULL DEFAULT '0'
  `chapter_id` smallint(5) unsigned NOT NULL DEFAULT '0'
  `number` smallint(5) unsigned NOT NULL DEFAULT '0' // real number, for page 1 of book 1 this has value 1, for page 1 of book 2 this has value 1...
  `value` float NOT NULL DEFAULT '0'
  PRIMARY KEY (`id`)
  KEY `book_id` (`book_id`) -> Foreign on `books`.`id`
  KEY `chapter_id` (`chapter_id`)  -> Foreign on `chapters`.`id`