Skip to content
This repository has been archived by the owner on Feb 1, 2024. It is now read-only.

Commit

Permalink
Merge pull request #1712 from zhengtingting1/master
Browse files Browse the repository at this point in the history 
#6 #565 第6次实验
  • Loading branch information
@zengsn
zengsn authored Jan 17, 2021
2 parents 6653bdb + c66eb37 commit fd8186c
Show file tree
Hide file tree
Showing 16 changed files with 1,109 additions and 11 deletions.
37 changes: 37 additions & 0 deletions ...1814080903241/app/src/main/java/edu/hzuapps/androidlabs/net181408903241/MainActivity.java
View file
Original file line number Diff line number Diff line change
Expand Up @@ -2,18 +2,32 @@

import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Button;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class MainActivity extends AppCompatActivity {
Button bt1,bt2;
EditText MaWd;
TextView textView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);



Button button_tiao1 = (Button) findViewById(R.id.button1);
final MainActivity thisActivity1 = this;
button_tiao1.setOnClickListener(new View.OnClickListener() {
Expand All @@ -30,5 +44,28 @@ public void onClick(View v) {
MainActivity.this.startActivity(Intent2);
}
});

}
public void btonClick (View view) throws IOException {
String mawd = MaWd.getText().toString();
String fileName = null;
FileOutputStream fileOutputStream = openFileOutput(fileName,Context.MODE_PRIVATE);
fileOutputStream.write((mawd).getBytes());
if(fileOutputStream !=null){
fileOutputStream.close();
}
Context context;
Toast.makeText(this,"登陆成功",Toast.LENGTH_LONG);
}
/* public void btClick(View view) throws IOException {
FileInputStream fileInputStream = openFileInput(fileName);
byte[] input = new byte[fileInputStream.available()];
while(fileInputStream.read(input)!=-1){
String str = new String(input);
String[] s =str.split(" ");
textView.setText("标记单词是："+s[0]);
if(fileInputStream !=null){
fileInputStream.close();
}
}*/
}
36 changes: 35 additions & 1 deletion ...1814080903241/app/src/main/java/edu/hzuapps/androidlabs/net181408903241/MarkActivity.java
View file
Original file line number Diff line number Diff line change
@@ -1,10 +1,44 @@
package edu.hzuapps.androidlabs.net181408903241;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import java.io.FileOutputStream;
import java.io.IOException;

public class MarkActivity extends AppCompatActivity {
Button btn_start;
EditText et_1,et_2;
TextView text;
String fileName = "Hello_file";

private TextView pu_1;
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_punchtheclock);
pu_1 = (TextView) findViewById(R.id.pu_1);
btn_start= findViewById(R.id.btn_start);
et_2 = findViewById(R.id.et_2);
et_1 = findViewById(R.id.et_1);

}
}
public void btClick (View view) throws IOException {
String t1 = et_1.getText().toString();
String t2= et_2.getText().toString();
FileOutputStream fileOutputStream = openFileOutput(fileName, Context.MODE_PRIVATE);
fileOutputStream.write((t1+"##"+t2).getBytes());
if(fileOutputStream !=null){
fileOutputStream.close();
}
Toast.makeText(this,"存储成功",Toast.LENGTH_LONG).show();
}

}

216 changes: 216 additions & 0 deletions ...4080903241/app/src/main/java/edu/hzuapps/androidlabs/net181408903241/PictureActivity.java
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,216 @@
package edu.hzuapps.androidlabs.net181408903241;
import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;


class PictureActivity extends AppCompatActivity implements View.OnClickListener{

public static final int DOWNLOAD_CODE = 10001;
public static final int DOWNLOAD_FAIL = 300;
public static final int CONNECT_TIMEOUT = 2000;
private ImageView image_download;
private Button btn_download;

private Handler handler;

private String path="https://img2.mukewang.com/5adfee7f0001cbb906000338-240-135.jpg";

private int fileLength;

private Bitmap mBitmap;

@Override
protected void onCreate( Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

//初始化控件
initialView();

btn_download.setOnClickListener(this);

//接收子线程的消息
handler=new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what){
case DOWNLOAD_CODE:
/*
* 更新UI
* 提取消息中的bitmap,并设置ImageView
* */
Bitmap bitmap=(Bitmap) msg.obj;
if (bitmap!=null){
image_download.setImageBitmap(bitmap);//disPlay image
}
break;
case DOWNLOAD_FAIL:
Toast.makeText(PictureActivity.this,"下载失败",Toast.LENGTH_SHORT).show();
break;
}
}
};

}

//初始化控件
public void initialView(){
btn_download=findViewById(R.id.btn_download);
image_download=findViewById(R.id.image_download);
}

//按钮点击
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.btn_download:
//开启线程
new Thread(new GetPictThread(handler,path)).start();
break;
}
}


//自定义GetPictThread类实现Runnable类
public class GetPictThread implements Runnable{
//定义handler和path
public Handler handler;
public String path;

//带参构造
public GetPictThread(Handler handler, String path) {
this.handler = handler;
this.path = path;
}

//在run方法中实现图片下载
@Override
public void run() {
//通过Get方法请求获取网络图片
try {
URL url=new URL(path);
HttpURLConnection connection=(HttpURLConnection) url.openConnection();

//设置请求方式
connection.setRequestMethod("GET");
//设置超时时间
connection.setConnectTimeout(30*1000);
//发起连接
connection.connect();

//获取状态码
int requestCode=connection.getResponseCode();
System.out.println(requestCode);

if (requestCode==HttpURLConnection.HTTP_OK){
/*
* 1.获得文件长度
* 2.通过缓冲输入流
* 3.将输入流转换成字节数组
* 4.将字节数组转换成位图
* */
fileLength=connection.getContentLength();

InputStream is=new BufferedInputStream(connection.getInputStream());

//获取到字节数组
byte[] arr=streamToArr(is);

//将字节数组转换成位图
mBitmap= BitmapFactory.decodeByteArray(arr,0,arr.length);
SavaImage(mBitmap, getExternalFilesDir(null).toString()+"/Test");
Log.d("Saveimage", "run: " +getExternalFilesDir(null).toString()+"/Test");
//Toast.makeText(getBaseContext(), "图片保存", Toast.LENGTH_SHORT).show();

/*
* 下载完成后将消息发送出去
* 通知主线程，更新UI
* */
Message message=Message.obtain();
message.what=DOWNLOAD_CODE;
message.obj=mBitmap;
handler.sendMessage(message);

}else {
Log.e("TAG", "run:error "+requestCode);
}
}catch (MalformedURLException e){
e.printStackTrace();
handler.sendEmptyMessage(DOWNLOAD_FAIL);
}catch (IOException e){
e.printStackTrace();
handler.sendEmptyMessage(DOWNLOAD_FAIL);
}
}
}

//将输入流转换成字节数组
public byte[] streamToArr(InputStream inputStream){

try {
ByteArrayOutputStream baos=new ByteArrayOutputStream();
byte[] buffer=new byte[1024];
int len;

while ((len=inputStream.read(buffer))!=-1){
baos.write(buffer,0,len);
}

//关闭输出流
baos.close();
//关闭输入流
inputStream.close();
//返回字节数组
return baos.toByteArray();
}catch (IOException e){
e.printStackTrace();
//若失败，则返回空
return null;
}
}

/**
* 保存位图到本地
* @param bitmap
* @param path 本地路径
* @return void
*/
public void SavaImage(Bitmap bitmap, String path){
File file=new File(path);
FileOutputStream fileOutputStream=null;
//文件夹不存在，则创建它
if(!file.exists()){
file.mkdir();
}
try {
fileOutputStream=new FileOutputStream(path+"/"+System.currentTimeMillis()+".png");
bitmap.compress(Bitmap.CompressFormat.JPEG, 100,fileOutputStream);
fileOutputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
}

}

4 changes: 4 additions & 0 deletions ...14080903241/app/src/main/java/edu/hzuapps/androidlabs/net181408903241/SerachActivity.java
View file
Original file line number Diff line number Diff line change
@@ -1,9 +1,13 @@
package edu.hzuapps.androidlabs.net181408903241;
import android.os.Bundle;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;
public class SerachActivity extends AppCompatActivity {
private TextView mse_1;
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_searchword);
mse_1 = (TextView) findViewById(R.id.se_1);
}
}
Loading

0 comments on commit fd8186c

Please sign in to comment.