public class ImageCroppMainActivity extends Activity implements OnClickListener{
final int CAMERA_CAPTURE = 1;
//keep track of cropping intent
final int PIC_CROP = 2;
//captured picture uri
private Uri picUri;
final int PICK_IMAGE = 3;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image_cropp_main);
//retrieve a reference to the UI button
Button captureBtn = (Button)findViewById(R.id.capture_btn);
//handle button clicks
captureBtn.setOnClickListener(this);
Button browseBtn = (Button)findViewById(R.id.browse_btn);
//handle button clicks
browseBtn.setOnClickListener(this);
}
public void onClick(View v) {
if (v.getId() == R.id.capture_btn) {
try {
//use standard intent to capture an image
Intent captureIntent = new
Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//we will handle the returned data in onActivityResult
startActivityForResult(captureIntent, CAMERA_CAPTURE);
}
catch(ActivityNotFoundException anfe){
//display an error message
String errorMessage = "Whoops - your device doesn't support capturing images!";
Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
toast.show();
}
}
else if(v.getId() == R.id.browse_btn)
{
//use standard intent to capture an image
Intent intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
//we will handle the returned data in onActivityResult
startActivityForResult(intent, PICK_IMAGE);
}
}
/**
* Handle user returning from both capturing and cropping the image
*/
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
if (resultCode == RESULT_OK) {
//user is returning from capturing an image using the camera
if(requestCode == CAMERA_CAPTURE){
//get the Uri for the captured image
picUri = data.getData();
//carry out the crop operation
performCrop();
}
//user is returning from cropping the image
else if(requestCode == PIC_CROP){
//get the returned data
Bundle extras = data.getExtras();
//get the cropped bitmap
Bitmap thePic = extras.getParcelable("data");
//retrieve a reference to the ImageView
ImageView picView =
(ImageView)findViewById(R.id.picture);
//display the returned cropped image
MediaStore.Images.Media.insertImage(getContentResolver(), thePic, "" , "");
picView.setImageBitmap(thePic);
}
else if(requestCode == PICK_IMAGE)
{
picUri = data.getData();
//carry out the crop operation
performCrop();
}}}
/**
* Helper method to carry out crop operation
*/
private void performCrop(){
//take care of exceptions
try {
//call the standard crop action intent (the user device may not support it)
Intent cropIntent = new
Intent("com.android.camera.action.CROP");
//indicate image type and Uri
cropIntent.setDataAndType(picUri, "image/*");
//set crop properties
cropIntent.putExtra("crop", "false");
//indicate aspect of desired crop
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
//indicate output X and Y
cropIntent.putExtra("outputX", 256);
cropIntent.putExtra("outputY", 256);
//retrieve data on return
cropIntent.putExtra("return-data", true);
//start the activity - we handle returning in onActivityResult
startActivityForResult(cropIntent, PIC_CROP);
}
//respond to users whose devices do not support the crop action
catch(ActivityNotFoundException anfe){
//display an error message
String errorMessage = "Whoops - your device doesn't support the
crop action!";
Toast toast = Toast.makeText(this, errorMessage,
Toast.LENGTH_SHORT);
toast.show();
}
}
}
答案 0 :(得分：1)
只需3个步骤即可完成 -
1）Android清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="camera.test.demo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".SimpleCameraGalleryDemo"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
2）SimpleCameraGalleryDemo代码
package camera.test.demo;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class SimpleCameraGalleryDemo extends Activity {
private static final int PICK_FROM_CAMERA = 1;
private static final int PICK_FROM_GALLERY = 2;
ImageView imgview;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imgview = (ImageView) findViewById(R.id.imageView1);
Button buttonCamera = (Button) findViewById(R.id.btn_take_camera);`enter code here`
Button buttonGallery = (Button) findViewById(R.id.btn_select_gallery);
buttonCamera.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// call android default camera
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI.toString());
// ******** code for crop image
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 0);
intent.putExtra("aspectY", 0);
intent.putExtra("outputX", 200);
intent.putExtra("outputY", 150);
try {
intent.putExtra("return-data", true);
startActivityForResult(intent, PICK_FROM_CAMERA);
} catch (ActivityNotFoundException e) {
// Do nothing for now
}
}
});
buttonGallery.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent();
// call android default gallery
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
// ******** code for crop image
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 0);
intent.putExtra("aspectY", 0);
intent.putExtra("outputX", 200);
intent.putExtra("outputY", 150);
try {
intent.putExtra("return-data", true);
startActivityForResult(Intent.createChooser(intent,
"Complete action using"), PICK_FROM_GALLERY);
} catch (ActivityNotFoundException e) {
// Do nothing for now
}
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PICK_FROM_CAMERA) {
Bundle extras = data.getExtras();
if (extras != null) {
Bitmap photo = extras.getParcelable("data");
imgview.setImageBitmap(photo);
}
}
if (requestCode == PICK_FROM_GALLERY) {
Bundle extras2 = data.getExtras();
if (extras2 != null) {
Bitmap photo = extras2.getParcelable("data");
imgview.setImageBitmap(photo);
}
}
}
}
3）main.xml文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textViewAddCard"
android:layout_width="250dp"
android:layout_height="50dp"
android:text="Take Image"
android:textSize="16dp"
android:layout_gravity="center"
android:gravity="center"
android:typeface="sans"/>
<Button
android:id="@+id/btn_take_camera"
android:layout_width="250dp"
android:layout_height="50dp"
android:text="Take From Camera"
android:layout_marginTop="5dp"
android:layout_gravity="center"
android:typeface="sans"/>
<Button
android:id="@+id/btn_select_gallery"
android:layout_width="250dp"
android:layout_height="50dp"
android:text="Select from Gallery"
android:layout_marginTop="10dp"
android:layout_gravity="center"
android:typeface="sans" />
<ImageView
android:id="@+id/imageView1"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
我希望它对您有所帮助。
答案 1 :(得分：0)
答案 2 :(得分：0)
尝试将此添加到OnActivityResult
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
if (resultCode == RESULT_OK) {
if(requestCode == CAMERA_CAPTURE){
picUri = data.getData();
performCrop();
}
else if(requestCode == PIC_CROP){
Bundle extras = data.getExtras();
Bitmap thePic = extras.getParcelable("data");
ImageView picView = (ImageView)findViewById(R.id.picture);
picView.setImageBitmap(thePic);
OutputStream output;
// Find the SD Card path
File filepath = Environment.getExternalStorageDirectory();
// Create a new folder in SD Card
File dir = new File(filepath.getAbsolutePath()
+ "/CroppedImage/");
dir.mkdirs();
// Create a name for the saved image
File file = new File(dir, "crop.jpg" );
try {
output = new FileOutputStream(file);
// Compress into png format image from 0% - 100%
thePic.compress(Bitmap.CompressFormat.JPEG, 100, output);
output.flush();
output.close();
}
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
答案 3 :(得分：0)
HI please try this to save to your gallery
MainActivity:
-----------------
package com.example.satis.crop;
import android.Manifest;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.ContentValues;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.content.FileProvider;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import com.theartofdev.edmodo.cropper.CropImage;
import com.theartofdev.edmodo.cropper.CropImageView;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Random;
import pub.devrel.easypermissions.AfterPermissionGranted;
import pub.devrel.easypermissions.AppSettingsDialog;
import pub.devrel.easypermissions.EasyPermissions;
import android.Manifest;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.File;
public class MainActivity extends AppCompatActivity {
ImageView imageView;
Button buttonCamera, buttonGallery ;
File file;
Uri uri;
Intent CamIntent, GalIntent, CropIntent ;
public static final int RequestPermissionCode = 1 ;
DisplayMetrics displayMetrics ;
int width, height;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imageView = (ImageView)findViewById(R.id.imageview);
buttonCamera = (Button)findViewById(R.id.button2);
buttonGallery = (Button)findViewById(R.id.button1);
EnableRuntimePermission();
buttonCamera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
ClickImageFromCamera() ;
}
});
buttonGallery.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
GetImageFromGallery();
}
});
}
public void ClickImageFromCamera() {
CamIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
file = new File(Environment.getExternalStorageDirectory(),
"file" + String.valueOf(System.currentTimeMillis()) + ".jpg");
uri = Uri.fromFile(file);
CamIntent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, uri);
CamIntent.putExtra("return-data", true);
startActivityForResult(CamIntent, 0);
}
public void GetImageFromGallery(){
GalIntent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(Intent.createChooser(GalIntent, "Select Image From Gallery"), 2);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 0 && resultCode == RESULT_OK) {
ImageCropFunction();
}
else if (requestCode == 2) {
if (data != null) {
uri = data.getData();
ImageCropFunction();
}
}
else if (requestCode == 1) {
if (data != null) {
Bundle bundle = data.getExtras();
Bitmap bitmap = bundle.getParcelable("data");
imageView.setImageBitmap(bitmap);
MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, "cropped" , "cropped");
}
}
}
public void ImageCropFunction() {
// Image Crop Code
try {
CropIntent = new Intent("com.android.camera.action.CROP");
CropIntent.setDataAndType(uri, "image/*");
CropIntent.putExtra("crop", "true");
CropIntent.putExtra("outputX", 180);
CropIntent.putExtra("outputY", 180);
CropIntent.putExtra("aspectX", 3);
CropIntent.putExtra("aspectY", 4);
CropIntent.putExtra("scaleUpIfNeeded", true);
CropIntent.putExtra("return-data", true);
startActivityForResult(CropIntent, 1);
} catch (ActivityNotFoundException e) {
}
}
//Image Crop Code End Here
public void EnableRuntimePermission(){
if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,
Manifest.permission.CAMERA))
{
Toast.makeText(MainActivity.this,"CAMERA permission allows us to Access CAMERA app", Toast.LENGTH_LONG).show();
} else {
ActivityCompat.requestPermissions(MainActivity.this,new String[]{
Manifest.permission.CAMERA}, RequestPermissionCode);
}
}
@Override
public void onRequestPermissionsResult(int RC, String per[], int[] PResult) {
switch (RC) {
case RequestPermissionCode:
if (PResult.length > 0 && PResult[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(MainActivity.this,"Permission Granted, Now your application can access CAMERA.", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(MainActivity.this,"Permission Canceled, Now your application cannot access CAMERA.", Toast.LENGTH_LONG).show();
}
break;
}
}
}
AndroidManifest.xml
-----------------------
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.satis.crop">
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-feature android:name="android.hardware.camera" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Activity_main:
-------------
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFECB3"
tools:context="com.example.satis.crop.MainActivity">
<ImageView
android:layout_width="250dp"
android:layout_height="325dp"
android:id="@+id/imageview"
android:layout_centerHorizontal="true"
/>
<Button
android:text="Click Here For PICK image from Gallery TO CROP"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/imageview"
android:layout_centerHorizontal="true"
android:layout_marginTop="7dp"
android:id="@+id/button1" />
<Button
android:text="Click Here For CLICK image from Camera TO CROP"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/button1"
android:layout_alignRight="@+id/button1"
android:layout_alignEnd="@+id/button1"
android:layout_marginTop="7dp"
android:id="@+id/button2" />
</RelativeLayout>
res/xml:
--------
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path name="external_files" path="." />
</paths>