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

<?xml version="1.0" encoding="utf-8"?><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：

<?xml version="1.0" encoding="utf-8"?>    <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

Android(安卓)拍照7.0适配（源码）

Android 拍照7.0适配（源码）

源码（没封装）

布局

文件路径设置

清单文件设置

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