Android 拍照7.0适配（源码）
Android 拍照7.0适配（源码）
从Android 7.0开始，一个应用提供自身文件给其它应用使用时，如果给出一个file://格式的URI的话，应用会抛出FileUriExposedException。
解决方法：FileProvider方式
源码（没封装）
public class MainActivity extends AppCompatActivity implements EasyPermissions.PermissionCallbacks{
@BindView(R.id.bt_choice)
TextView bt_choice;
@BindView(R.id.bt_take)
TextView bt_take;
@BindView(R.id.ll_select)
LinearLayout ll_select;
@BindView(R.id.iv_test)
ImageView iv_test;
private static String photoName;
private static File f_save;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
}
@OnClick({R.id.bt_take,R.id.bt_choice})
public void onClick(View view){
switch (view.getId()){
case R.id.bt_choice:
if(hasMashroom()){
EasyPermissions.requestPermissions(this,"需要访问网络",2000,new String[] {
Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_EXTERNAL_STORAGE});
chosePhoto(MainActivity.this,1);
}else {
chosePhoto(MainActivity.this,1);
}
break;
case R.id.bt_take:
if(hasMashroom()){
EasyPermissions.requestPermissions(this,"需要访问网络",2000,new String[] {Manifest
.permission.CAMERA,
Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_EXTERNAL_STORAGE});
takePhoto(MainActivity.this,2);
}else {
takePhoto(MainActivity.this,2);
}
break;
}
}
public static boolean hasMashroom() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
}
@Override
public void onPermissionsGranted(int requestCode, List perms) {
}
@Override
public void onPermissionsDenied(int requestCode, List perms) {
}
private static void takePhoto(Activity activity, int cameraRequestCode){
Intent intent1 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// 下面这句指定调用相机拍照后的照片存储的路径
Uri uri;
String path = Environment.getExternalStorageDirectory()+ "/mycap/";
File file = new File(path);
if(!file.exists()){
file.mkdirs();
}
photoName=System.currentTimeMillis()+".jpg";
f_save = new File(path, photoName);
if (hasMashroom()) {
intent1.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
uri = FileProvider.getUriForFile(activity, activity.getApplicationContext().getPackageName()+ ".provider", f_save);
} else {
uri = Uri.fromFile(f_save);
}
intent1.putExtra(MediaStore.EXTRA_OUTPUT, uri);
activity.startActivityForResult(intent1, cameraRequestCode);
}
private static void chosePhoto(Activity activity,int photoRequestCode){
Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
// activity.startActivityForResult(intent, photoRequestCode);
ComponentName componentName = intent.resolveActivity(activity.getPackageManager());
if (componentName != null) {
activity.startActivityForResult(intent, photoRequestCode);
}
}
Uri cropUri;
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode){
case 2:
cropUri = cropPicture(MainActivity.this,f_save);
if(null == data){
Log.i("info", "======拍照回来=data=null==22222222");
}else {
if (null == data && null == data.getData()) {
Log.i("info", "======拍照回来=data.getData()=nullo==");
} else {
if (null == parsePicturePath(this, data.getData())) {
Log.i("info", "======拍照回来获取路径null==");
}
}
}
break;
case 1:
if (data != null){
cropUri = cropPicture(this,new File(parsePicturePath(this, data.getData())));
}
break;
default:break;
}
}
public static Uri cropPicture(Activity mActivity,File file) {
// String cropImageName = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.getDefault()).format(new Date()) +
// "-1-" + System.currentTimeMillis() + ".jpg";
//file 是资源
String cropImageName ="mycropimge.jpg";
String path=mActivity.getExternalCacheDir()+"/basePic/";
File pathFile=new File(path);
//这里要创建目录 不然部分手机不支持
if (!pathFile.exists())
{
pathFile.mkdirs();
}
File cropFile = new File(pathFile, cropImageName);
Intent intent = new Intent("com.android.camera.action.CROP");
//注意到此处使用的file:// uri类型.
//Uri cropUri= Uri.fromFile(cropFile);
Uri cropUri ;//剪裁
Uri sourceUri;//资源
if (hasMashroom()) {
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
sourceUri = FileProvider.getUriForFile(mActivity, mActivity.getApplicationContext().getPackageName()+ ".provider", file);
// sourceUri = getImageContentUri(mActivity, file);
cropUri= Uri.fromFile(cropFile);
} else {
sourceUri= Uri.fromFile(file);
cropUri = Uri.fromFile(cropFile);
}
intent.setDataAndType(sourceUri, "image/*"); //此处有问题
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 200);
intent.putExtra("outputY", 200);
intent.putExtra("return-data", true);
intent.putExtra(MediaStore.EXTRA_OUTPUT, cropUri);
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true);
ComponentName componentName = intent.resolveActivity(mActivity.getPackageManager());
if (componentName != null) {
mActivity.startActivityForResult(intent, 3);
}
return cropUri;
}
public static String parsePicturePath(Context context, Uri uri) {
if (null == context || uri == null)
return null;
boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentUri
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageDocumentsUri
if (isExternalStorageDocumentsUri(uri)) {
String docId = DocumentsContract.getDocumentId(uri);
String[] splits = docId.split(":");
String type = splits[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + File.separator + splits[1];
}
}
// DownloadsDocumentsUri
else if (isDownloadsDocumentsUri(uri)) {
String docId = DocumentsContract.getDocumentId(uri);
Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(docId));
return getDataColumn(context, contentUri, null, null);
}
// MediaDocumentsUri
else if (isMediaDocumentsUri(uri)) {
String docId = DocumentsContract.getDocumentId(uri);
String[] split = docId.split(":");
String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
String selection = "_id=?";
String[] selectionArgs = new String[]{split[1]};
return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
if (isGooglePhotosContentUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
private static boolean isExternalStorageDocumentsUri(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
private static boolean isDownloadsDocumentsUri(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
private static boolean isMediaDocumentsUri(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
private static boolean isGooglePhotosContentUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
private static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
String column = "_data";
String[] projection = {column};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
try {
if (cursor != null)
cursor.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
}
布局
<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:gravity="center"
tools:context="com.youngch.android.taskphoto.MainActivity">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:orientation="vertical">
<ImageView
android:layout_width="200dp"
android:layout_height="200dp"
android:id="@+id/iv_test"
android:background="@mipmap/ic_launcher"/>
<LinearLayout
android:layout_width="match_parent"
android:orientation="vertical"
android:id="@+id/ll_select"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:textSize="18sp"
android:gravity="center"
android:layout_marginTop="10dp"
android:layout_height="wrap_content"
android:background="@color/colorPrimary"
android:id="@+id/bt_take"
android:text="拍照"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="18sp"
android:layout_marginTop="10dp"
android:background="@color/colorAccent"
android:gravity="center"
android:id="@+id/bt_choice"
android:text="选择照片"/>
LinearLayout>
LinearLayout>
ScrollView>
LinearLayout>文件路径设置
在项目res文件夹下创建xml文件夹
在里面新建file_path.xml文件，如上图
文件中的内容为：
<paths>
<external-path name="external_files" path="."/>
<cache-path
name="cache_files"
path="."/>
paths>清单文件设置
在application标签下配置provider，如下
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.provider"
android:grantUriPermissions="true"
android:exported="false">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_path" />
provider>代码关联就是在上面源码中的这一句
uri = FileProvider.getUriForFile(activity, activity.getApplicationContext().getPackageName()+ ".provider", f_save);路还很长，慢慢走