Merge pull request #468 from ZaakLim/master

#89 #82 实验3

app/src/main/java/edu/hzuapps/androidworks/homeworks/net1314080903125/Net1314080903125Activity.java

@@ -1,11 +1,23 @@
 package edu.hzuapps.androidworks.homeworks.net1314080903125;
 
 import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.os.Environment;
 import android.provider.MediaStore;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.Toast;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
 
 public class Net1314080903125Activity extends AppCompatActivity {
 
@@ -35,7 +47,68 @@ public void onClick(View v){
             }
         });
     }
+    private Uri saveBitmap(Bitmap bm)
+    {
+        File tmpDir = new File(Environment.getExternalStorageDirectory() +"/com.zaak.zaaklim");
+        if(!tmpDir.exists())
+        {
+            tmpDir.mkdir();
+        }
+        File img = new File(tmpDir.getAbsolutePath() +"zaaklim.png");
+        try{
+            FileOutputStream fos = new FileOutputStream(img);
+            bm.compress(Bitmap.CompressFormat.PNG,85,fos);
+            fos.flush();
+            fos.close();
+            return Uri.fromFile(img);
+        }catch (FileNotFoundException e){
+            e.printStackTrace();
+            return null;
+        }catch(IOException e){
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    private Uri convertUri(Uri uri)
+    {
+        InputStream is = null;
+        try{
+            is = getContentResolver().openInputStream(uri);
+            Bitmap bitmap = BitmapFactory.decodeStream(is);
+            is.close();
+            return saveBitmap(bitmap);
+        }catch (FileNotFoundException e){
+            e.printStackTrace();
+            return null;
+        }catch (IOException e){
+            e.printStackTrace();
+            return null;
+        }
+    }
 
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == CAMERA_REQUEST_CODE) {
+            if (data == null) {
+                return;
+            } else {
+                Bundle extras = data.getExtras();
+                if (extras != null) {
+                    Bitmap bm = extras.getParcelable("data");
+                    ImageView imageView = (ImageView) findViewById(R.id.imageView);
+                    imageView.setImageBitmap(bm);
+                }
+            }
+        } else if (requestCode == GALLERY_REQUEST_CODE) {
+            if (data == null) {
+                return;
+            }
+            Uri uri;
+            uri = data.getData();
+            Toast.makeText(Net1314080903125Activity.this, uri.toString(), Toast.LENGTH_LONG).show();
 
+        }
+    }
 
 }

app/src/main/res/layout/net1314080903125.xml

@@ -0,0 +1,39 @@
+<?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:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context=".Net1314080903125Activity">
+
+    <ImageView
+        android:layout_width="400px"
+        android:layout_height="400px"
+        android:id="@+id/imageView"
+        android:layout_alignParentTop="true"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="45dp"
+        android:src="@drawable/net1314080903125"/>
+
+
+    <Button
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="摄像头"
+        android:id="@+id/btn_camera"
+        android:layout_marginTop="80dp"
+        android:layout_below="@+id/imageView"
+        android:layout_centerHorizontal="true" />
+
+    <Button
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text=" 图库 "
+        android:id="@+id/btn_gallery"
+        android:layout_below="@+id/btn_camera"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="29dp" />
+</RelativeLayout>