Merge pull request #982 from YLiuLiu/master

#93 #94 #95 #76 实验已完成
hzuapps · Jun 17, 2016 · ed6f7f8 · ed6f7f8
2 parents f5d68fb + 55d6807
commit ed6f7f8
Show file tree

Hide file tree

Showing 4 changed files with 296 additions and 35 deletions.
diff --git a/...in/java/edu/hzuapps/androidworks/homeworks/com1314080901239/Com1314080901239Activity.java b/...in/java/edu/hzuapps/androidworks/homeworks/com1314080901239/Com1314080901239Activity.java
@@ -3,46 +3,127 @@
 import java.io.File;
 
 import android.app.Activity;
+import android.content.ContentResolver;
 import android.content.Intent;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.MediaStore;
 import android.view.View;
+import android.widget.ImageView;
 import android.widget.Toast;
 
-
 public class Com1314080901239Activity extends Activity {
+
+	private final String IMAGE_TYPE = "image/*";
+	private final int PICK_PHOTO = 1; // 选择照片
+	private final int TAKE_PHOTO = 0; // 拍照
+	private final int CUT_PHOTO = 2;// 裁剪图片
 	private Uri fileUri;
+	private ImageView iv;
+	private String path;
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_com1314080901239);
+		iv = (ImageView) findViewById(R.id.iv);
+	}
+
+	// 拍照
+	public void takePhoto(View v) {
+
+		// 启动一个意图。这里就是调用google给我们提供的，手机自带的拍照应用
+		Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
+		// 设置存储路径
+		intent.putExtra(MediaStore.EXTRA_OUTPUT,
+		// 设置图片存储路径及名字
+				Uri.fromFile(new File("sdcard/nuna.jpg")));
+
+		startActivityForResult(intent, TAKE_PHOTO);
+
+	}
+
+	public void pickPhoto(View v) {
+		// 调用系统提供的相册功能
+		Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+		intent.setType(IMAGE_TYPE);
+		startActivityForResult(intent, PICK_PHOTO);
+
+	}
+
+	public void cutPhoto(View v) {
+		 Cutphoto();
+	}
 
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_com1314080901239);
-    }
-    // 点击事件
- 	public void takePhoto(View v) {
- 		// create Intent to take a picture and return control to the calling
- 		// application
- 		// 启动一个意图。这里就是调用google给我们提供的，手机自带的拍照应用
- 		Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
- 		// 设置存储路径
- 		intent.putExtra(MediaStore.EXTRA_OUTPUT,
- 				Uri.fromFile(new File("sdcard/nuna.jpg"))); // set the image
- 															// file name
-
- 		// start the image capture Intent
- 		startActivityForResult(intent, 0);
-
- 	}
-
- 	@Override
- 	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
- 		// TODO Auto-generated method stub
- 		super.onActivityResult(requestCode, resultCode, data);
- 		if (requestCode == 0) {
- 			Toast.makeText(getApplicationContext(), "拍照成功", 0).show();
- 		}
- 	}
+	public void getJson(View v){
+		Intent intent=new Intent(Com1314080901239Activity.this,Com1314080901239GetJson.class);
+		startActivity(intent);
+	}
 
+	@Override
+	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+		// TODO Auto-generated method stub
+		super.onActivityResult(requestCode, resultCode, data);
+		Bitmap bm = null;
+		ContentResolver resolver = getContentResolver();
+		if (requestCode == TAKE_PHOTO) {
+			Toast.makeText(getApplicationContext(), "拍照成功", 0).show();
+		} else if (requestCode == PICK_PHOTO) {
+			Uri originalUri = data.getData();
+			try {
+				bm = MediaStore.Images.Media.getBitmap(resolver, originalUri);
+				iv.setImageBitmap(bm);
+				String[] proj = { MediaStore.Images.Media.DATA };
+				Cursor cursor = managedQuery(originalUri, proj, null, null,
+						null);
+				int column_index = cursor
+						.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
+
+				cursor.moveToFirst();
+				// 最后根据索引值获取图片路径
+				path = cursor.getString(column_index);
+
+
+			} catch (Exception e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+
+		} else if (requestCode == CUT_PHOTO) {
+			if (resultCode == RESULT_OK) {
+				savePhoto(data);
+			}
+		}
+	}
+
+	// 裁剪图片的方法
+	public void Cutphoto() {
+		Intent intent = new Intent("com.android.camera.action.CROP");
+		//intent.setDataAndType(uri, IMAGE_TYPE);
+		intent.putExtra("crop", "true");
+		intent.putExtra("aspectX", 1);
+		intent.putExtra("aspectY", 1);
+		intent.putExtra("outoutX", 150);
+		intent.putExtra("outputY", 150);
+		intent.putExtra("return-data", true);
+		startActivityForResult(intent, CUT_PHOTO);
+
+	}
+
+	// 保存裁剪后的图片
+	public void savePhoto(Intent intent) {
+		Bundle extras = intent.getExtras();
+		if (extras != null) {
+			Bitmap photo = extras.getParcelable("data");
+			Drawable drawable = new BitmapDrawable(photo);
+			iv.setBackgroundDrawable(drawable);
+		}
+	}
+
+
 
 }
diff --git a/...ain/java/edu/hzuapps/androidworks/homeworks/com1314080901239/Com1314080901239GetJson.java b/...ain/java/edu/hzuapps/androidworks/homeworks/com1314080901239/Com1314080901239GetJson.java
@@ -0,0 +1,144 @@
+package com.example.test;
+
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import org.json.JSONObject;
+
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.app.Activity;
+import android.view.Menu;
+import android.view.View;
+import android.widget.TextView;
+import android.widget.Toast;
+
+public class Com1314080901239GetJson extends Activity {
+
+	private final int SUCCESS = 1;
+	private final int FAILURE = 0;
+	private final int ERRORCODE = 2;
+	private TextView tv;
+
+	private Handler handler=new Handler(){
+		public void handleMessage(Message msg){
+			switch (msg.what) {
+			case SUCCESS:
+				String result=getJson(msg.obj.toString());
+				//主线程更新UI
+				tv.setText(result);
+				Toast.makeText(Com1314080901239GetJson.this, "获取数据成功", Toast.LENGTH_SHORT)
+				.show();
+				break;
+			case FAILURE:
+				Toast.makeText(Com1314080901239GetJson.this, "获取数据失败", Toast.LENGTH_SHORT)
+				.show();
+			case ERRORCODE:
+				Toast.makeText(Com1314080901239GetJson.this, "获取的CODE码不为200！",
+						Toast.LENGTH_SHORT).show();
+			default:
+				break;
+			}
+		}
+	};
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_com1314080901239_get_json);
+		tv=(TextView) findViewById(R.id.tv);
+	}
+
+	public String getJson(String string){
+		JSONObject jObject= null;
+		try {
+			jObject =new JSONObject(string);
+		} catch (Exception e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+			System.out.println("创建JsonObject失败");
+		}
+		//解析JSON数据
+		String city=jObject.optString("city");
+		String city_en=jObject.optString("city_en");
+		String date_y=jObject.optString("date_y");
+		String week=jObject.optString("week");
+		int cityid=jObject.optInt("cityid");
+		String temp1=jObject.optString("temp1");
+		System.out.println(temp1+""+date_y+""+city_en+""+cityid+""+week+""+city);
+		String weatherResult="城市："+city+"\n城市英文名："+city_en+"\n日期："+date_y+"\n星期："+week+"\n城市编号："+cityid+"\n温度："+temp1;
+		return weatherResult;
+	}
+
+	public void click(View v){
+		//开子线程获取网络请求
+		new Thread(){
+			int code=0;
+			public void run() {
+				// TODO Auto-generated method stub
+				try {
+
+					String path="https://raw.githubusercontent.com/hzuapps/android-labs/master/app/src/main/java/edu/hzuapps/androidworks/homeworks/com1314080901239/city.json";
+					URL url=new URL(path);
+					HttpURLConnection conn=(HttpURLConnection) url.openConnection();
+					//设置GET请求
+					conn.setRequestMethod("GET");
+					//设置请求超时时间
+					conn.setConnectTimeout(5000);
+					code=conn.getResponseCode();
+					System.out.println(code);
+					//200表示获取请求成功
+					if(code==200){
+						System.out.println("获取数据成功");
+						InputStream is=conn.getInputStream();
+						String result = readMyInputStream(is);
+
+						//handle Message
+						Message msg=new Message();
+						msg.obj= result;
+						msg.what=SUCCESS;
+						handler.sendMessage(msg);
+					} else {
+						Message msg = new Message();
+						msg.what = ERRORCODE;
+						handler.sendMessage(msg);
+					}
+				} catch (Exception e) {
+					// TODO Auto-generated catch block
+					System.out.println("获取数据失败");
+					e.printStackTrace();
+					Message msg = new Message();
+					msg.what = FAILURE;
+					handler.sendMessage(msg);
+				}
+
+
+				super.run();
+			}
+		}.start();
+	}
+
+	//以流的形式读取数据
+	public String readMyInputStream(InputStream is){
+		byte[] result;
+		try {
+			ByteArrayOutputStream baos=new ByteArrayOutputStream();
+			byte[] buffer=new byte[1024];
+			int len;
+			while((len = is.read(buffer))!= -1){
+				baos.write(buffer,0,len);
+			}
+			is.close();
+			baos.close();
+			result =baos.toByteArray();
+		} catch (Exception e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+			String errorString="获取数据失败";
+			return errorString;
+		}
+		return new String(result);
+	}
+}
diff --git a/app/src/main/res/layout/activity_com1314080901239.xml b/app/src/main/res/layout/activity_com1314080901239.xml
@@ -7,14 +7,17 @@
     >
 
   <ImageView
-      android:layout_width="wrap_content"
-      android:layout_height="200dp"
+      android:id="@+id/iv"
+      android:layout_width="match_parent"
+      android:layout_height="300dp"
+      android:layout_weight="1"
       android:src="@drawable/a"
       android:layout_gravity="center"/>
 
   <LinearLayout
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
+      android:layout_weight="1"
       android:orientation="horizontal"
       android:layout_gravity="center"
       tools:context=".Com1314080901239Activity" >
@@ -24,26 +27,34 @@
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="选图" 
-
+          android:onClick="pickPhoto"
           />
 
       <Button
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="拍照" 
-
           android:onClick="takePhoto"
           />
 
       <Button
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
-          android:text="截图" />
+          android:text="裁剪图片" 
+          android:onClick="cutPhoto"
+          />
 
       <Button
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="保存" />
+
+      	<Button 
+      	    android:layout_width="wrap_content"
+      	    android:layout_height="wrap_content"
+      	    android:onClick="getJson"
+      	    android:text="getJson"
+      	    />
   </LinearLayout>
 
 </LinearLayout>
diff --git a/app/src/main/res/layout/activity_com1314080901239_get_json.xml b/app/src/main/res/layout/activity_com1314080901239_get_json.xml
@@ -0,0 +1,25 @@
+<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: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=".Com1314080901239GetJson" 
+    android:orientation="vertical"
+    >
+
+    <Button 
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:onClick="click"
+        android:text="获取Json"
+        />
+    <TextView
+        android:id="@+id/tv"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/hello_world" />
+
+</LinearLayout>