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提交 079bde46 编写于 作者: S suhy
浏览文件
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modified: MyHomeWork/.idea/misc.xml 

	modified:   MyHomeWork/.idea/vcs.xml
	modified:   MyHomeWork/app/src/main/AndroidManifest.xml
	modified:   MyHomeWork/app/src/main/java/com/example/myhomework/Fragment/PhotoFragment.java
	modified:   MyHomeWork/app/src/main/res/layout/fragment_photo.xml
	new file:   MyHomeWork/app/src/main/res/xml/file_paths.xml
上级 c90353e8
隐藏空白更改
内联 并排
Showing with 214 addition and 14 deletion
MyHomeWork/.idea/misc.xml
浏览文件 @ 079bde46
......@@ -46,6 +46,7 @@
<entry key="app/src/main/res/layout/activity_main.xml" value="0.1" />
<entry key="app/src/main/res/layout/fragment_chat.xml" value="0.10520833333333333" />
<entry key="app/src/main/res/layout/fragment_chat2.xml" value="0.10520833333333333" />
<entry key="app/src/main/res/layout/fragment_photo.xml" value="0.10520833333333333" />
</map>
</option>
</component>
......
MyHomeWork/.idea/vcs.xml
浏览文件 @ 079bde46
......@@ -2,5 +2,6 @@
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/.." vcs="Git" />
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>
\ No newline at end of file
MyHomeWork/app/src/main/AndroidManifest.xml
浏览文件 @ 079bde46
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.myhomework">
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"
tools:ignore="ProtectedPermissions"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="@mipmap/app_icon"
......@@ -27,5 +36,16 @@
</activity>
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="com.example.myhomework.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths"/>
</provider>
</application>
</manifest>
\ No newline at end of file
MyHomeWork/app/src/main/java/com/example/myhomework/Fragment/PhotoFragment.java
浏览文件 @ 079bde46
package com.example.myhomework.Fragment;
import android.Manifest;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.core.content.FileProvider;
import androidx.fragment.app.Fragment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import com.example.myhomework.Activity.MainActivity;
import com.example.myhomework.R;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.UUID;
/**
* A simple {@link Fragment} subclass.
* Use the {@link PhotoFragment#newInstance} factory method to
......@@ -48,6 +76,15 @@ public class PhotoFragment extends Fragment {
return fragment;
}
public static final int TAKE_PHOTO = 1;
public static final int CHOOSE_PHOTO = 2;
private ImageView picture;
private Uri imageUri;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
......@@ -55,12 +92,132 @@ public class PhotoFragment extends Fragment {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
private void openAlbum() {
Intent intent = new Intent("android.intent.action.GET_CONTENT");
intent.setType("image/*");
startActivityForResult(intent, CHOOSE_PHOTO); // 打开相册
}
@TargetApi(19)
private void handleImageOnKitKat(Intent data) {
String imagePath = null;
Uri uri = data.getData();
Log.d("TAG", "handleImageOnKitKat: uri is " + uri);
if (DocumentsContract.isDocumentUri(this.getActivity(), uri)) {
// 如果是document类型的Uri，则通过document id处理
String docId = DocumentsContract.getDocumentId(uri);
if("com.android.providers.media.documents".equals(uri.getAuthority())) {
String id = docId.split(":")[1]; // 解析出数字格式的id
String selection = MediaStore.Images.Media._ID + "=" + id;
imagePath = getImagePath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection);
} else if ("com.android.providers.downloads.documents".equals(uri.getAuthority())) {
Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(docId));
imagePath = getImagePath(contentUri, null);
}
} else if ("content".equalsIgnoreCase(uri.getScheme())) {
// 如果是content类型的Uri，则使用普通方式处理
imagePath = getImagePath(uri, null);
} else if ("file".equalsIgnoreCase(uri.getScheme())) {
// 如果是file类型的Uri，直接获取图片路径即可
imagePath = uri.getPath();
}
displayImage(imagePath); // 根据图片路径显示图片
}
private void handleImageBeforeKitKat(Intent data) {
Uri uri = data.getData();
String imagePath = getImagePath(uri, null);
displayImage(imagePath);
}
@SuppressLint("Range")
private String getImagePath(Uri uri, String selection) {
String path = null;
// 通过Uri和selection来获取真实的图片路径
//AppCompatActivity appCompatActivity=new AppCompatActivity();
Cursor cursor = this.getActivity().getContentResolver().query(uri, null, selection, null, null);
if (cursor != null) {
if (cursor.moveToFirst()) {
path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));
}
cursor.close();
}
return path;
}
private void displayImage(String imagePath) {
if (imagePath != null) {
Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
picture.setImageBitmap(bitmap);
} /*else {
Toast.makeText(this, "failed to get image", Toast.LENGTH_SHORT).show();
}*/
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_photo, container, false);
View view=inflater.inflate(R.layout.fragment_photo, container, false);
Button takePhoto = view.findViewById(R.id.take_photo);
Button chooseFromAlbum = view.findViewById(R.id.choose_from_album);
picture = view.findViewById(R.id.picture);
takePhoto.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// 创建File对象，用于存储拍照后的图片
File outputImage = new File(view.getContext().getExternalCacheDir(), "output_image.jpg");
try {
String imgSaved= MediaStore.Images.Media.insertImage(view.getContext().getContentResolver(),outputImage.getAbsolutePath(), UUID.randomUUID().toString()+".png", "drawing");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
try {
if (outputImage.exists()) {
outputImage.delete();
}
outputImage.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
if (Build.VERSION.SDK_INT < 24) {
imageUri = Uri.fromFile(outputImage);
} else {
ContentValues contentValues = new ContentValues(1);
contentValues.put(MediaStore.Images.Media.DATA, outputImage.getPath());
imageUri = FileProvider.getUriForFile(view.getContext(),
view.getContext().getPackageName() + ".fileprovider",
outputImage);
}
// 启动相机程序
//Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.CAMERA,Manifest.permission.WRITE_EXTERNAL_STORAGE},1);
Intent intent =new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, TAKE_PHOTO);
}
});
chooseFromAlbum.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (ContextCompat.checkSelfPermission(view.getContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(getActivity(), new String[]{ Manifest.permission. WRITE_EXTERNAL_STORAGE }, 1);
} else {
openAlbum();
}
}
});
return view;
}
}
\ No newline at end of file
MyHomeWork/app/src/main/res/layout/fragment_photo.xml
浏览文件 @ 079bde46
......@@ -13,10 +13,25 @@
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/choose_from_album"
android:layout_width="172dp"
android:layout_height="129dp"
android:background="#FFFFFF"
android:drawableTop="@drawable/camera"
android:text="相册选择"
android:textSize="34sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.114"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.956" />
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/picture"
android:layout_width="400dp"
android:layout_height="316dp"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
app:layout_constraintBottom_toBottomOf="parent"
......@@ -24,38 +39,38 @@
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.004"
app:layout_constraintVertical_bias="0.0"
app:srcCompat="@drawable/shool_view" />
<Button
android:id="@+id/button"
android:layout_width="183dp"
android:layout_height="172dp"
android:id="@+id/take_photo"
android:layout_width="148dp"
android:layout_height="151dp"
android:background="#FFFFFF"
android:drawableTop="@drawable/camera"
android:text="随手拍"
android:textSize="34sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.114"
app:layout_constraintHorizontal_bias="0.117"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.738" />
app:layout_constraintVertical_bias="0.648" />
<Button
android:id="@+id/button3"
android:layout_width="149dp"
android:layout_height="174dp"
android:layout_width="122dp"
android:layout_height="178dp"
android:background="@color/white"
android:drawableTop="@drawable/history"
android:text="历史记录"
android:textSize="34sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.874"
app:layout_constraintHorizontal_bias="0.823"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.741" />
app:layout_constraintVertical_bias="0.655" />
</androidx.constraintlayout.widget.ConstraintLayout>
</FrameLayout>
\ No newline at end of file
MyHomeWork/app/src/main/res/xml/file_paths.xml 0 → 100644
浏览文件 @ 079bde46
<?xml version="1.0" encoding="UTF-8" ?>
<paths xmlns:android ="http://schemas.android.com/apk/res/android">
<external-path
name="my_images" path="."/>
</paths>
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