Merge pull request #1887 from Huanglongsen/master

#7 #1886 实验7
hzuapps · May 13, 2019 · 02c02f0 · 02c02f0
2 parents 82e9b2b + 3d5ca8e
commit 02c02f0
Show file tree

Hide file tree

Showing 4 changed files with 105 additions and 22 deletions.
diff --git a/students/soft1709081602232/AndroidManifest.xml b/students/soft1709081602232/AndroidManifest.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="soft1709081602232.androidlabs.hzuapps.edu.myapplication">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        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>
+        <provider
+            android:name="android.support.v4.content.FileProvider"
+            android:authorities="soft1709081602232.androidlabs.hzuapps.edu.myapplication7.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true"></provider>
+        <meta-data
+            android:name="android.support.FILE_PROVIDER_PATHS"
+            android:resource="@xml/file_paths"></meta-data>
+
+
+    </application>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+
+
+
+
+
+</manifest>
diff --git a/students/soft1709081602232/java/edu/hzuapps/androidlabs/soft1709081602232/MainActivity.java b/students/soft1709081602232/java/edu/hzuapps/androidlabs/soft1709081602232/MainActivity.java
@@ -1,26 +1,74 @@
 package soft1709081602232.androidlabs.hzuapps.edu.myapplication;
 
+import android.app.MediaRouteButton;
 import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.os.Build;
+import android.provider.MediaStore;
+import android.support.v4.content.FileProvider;
+import android.support.v4.content.IntentCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
+import android.widget.ImageView;
 
-public class MainActivity extends AppCompatActivity {
-
-    private Button button;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
 
+public class MainActivity extends AppCompatActivity {
+    public static final int TAKE_PHOTO=1;
+    private ImageView picture;
+    private Uri imageUri;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-        Button button = findViewById(R.id.button);
-        button.setOnClickListener(new View.OnClickListener() {
+        Button takePhoto=(Button)findViewById(R.id.take_photo);
+        picture=(ImageView)findViewById(R.id.picture);
+        takePhoto.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                Intent i = new Intent(MainActivity.this, Main2Activity.class);
-                startActivity(i);
+                File outputImage=new File(getExternalCacheDir(),"output_image.jpg");
+                try{
+                    if(outputImage.exists()){
+                        outputImage.delete();
+                    }
+                    outputImage.createNewFile();
+                }catch(IOException e){
+                    e.printStackTrace();
+                }
+                if(Build.VERSION.SDK_INT>=24){
+                    imageUri=FileProvider.getUriForFile(MainActivity.this,"com.example.cameraalbumtext.fileprovider",outputImage);
+
+                }else{
+                    imageUri=Uri.fromFile(outputImage);
+
+                }
+                Intent intent=new Intent("android.media.IMAGE_CAPTURE");
+                intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
+                startActivityForResult(intent,TAKE_PHOTO);
             }
         });
     }
+    @Override
+    protected void onActivityResult(int requestCode,int resultCode,Intent data ){
+        switch (requestCode){
+            case TAKE_PHOTO:
+                if (resultCode==RESULT_OK){
+                    try{
+                        Bitmap bitmap=BitmapFactory.decodeStream(getContentResolver().openInputStream(imageUri));
+                        picture.setImageBitmap(bitmap);
+                    }catch(FileNotFoundException e){
+                        e.printStackTrace();
+                    }
+                }
+                break;
+            default:
+                break;
+        }
+    }
 }
diff --git a/students/soft1709081602232/res/layout/activity_main.xml b/students/soft1709081602232/res/layout/activity_main.xml
@@ -1,20 +1,15 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".MainActivity" android:background="@drawable/xuezhiquan">
-
+    android:layout_height="match_parent">
     <Button
-        android:id="@+id/button"
+        android:id="@+id/take_photo"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="演员" />
-    <EditText
-        android:id="@+id/edit"
-        android:layout_width="match_parent"
+        android:text="Take photo"/>
+    <ImageView
+        android:id="@+id/picture"
+        android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:hint="Type something here"
-        />
-</android.support.constraint.ConstraintLayout>
+        android:layout_gravity="center_horizontal"/>
+</LinearLayout>
diff --git a/students/soft1709081602232/res/xml/file_paths.xml b/students/soft1709081602232/res/xml/file_paths.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+    <external.path name="my_images" path=""/>
+</paths>