From 3291998651973ee78ceca0ff037709ae2a0f5fed Mon Sep 17 00:00:00 2001 From: = <=> Date: Sun, 12 May 2019 16:22:08 +0800 Subject: [PATCH] =?UTF-8?q?=E5=AE=9E=E9=AA=8C7?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../main/AndroidManifest.xml" | 30 +++ .../example/myapplication/Main2Activity.java" | 199 +++++++++++++++ .../example/myapplication/Main3Activity.java" | 97 ++++++++ .../example/myapplication/MainActivity.java" | 37 +++ .../res/drawable/ic_launcher_background.xml" | 170 +++++++++++++ .../main/res/drawable/shape.xml" | 8 + .../main/res/layout/activity_main.xml" | 228 ++++++++++++++++++ .../main/res/layout/activity_main2.xml" | 96 ++++++++ .../main/res/layout/activity_main3.xml" | 64 +++++ .../main/res/layout/activity_main4.xml" | 68 ++++++ 10 files changed, 997 insertions(+) create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/AndroidManifest.xml" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/Main2Activity.java" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/Main3Activity.java" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/MainActivity.java" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/res/drawable/ic_launcher_background.xml" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/res/drawable/shape.xml" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/res/layout/activity_main.xml" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/res/layout/activity_main2.xml" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/res/layout/activity_main3.xml" create mode 100644 "students/soft1714080902301/\345\256\236\351\252\2147/main/res/layout/activity_main4.xml" diff --git "a/students/soft1714080902301/\345\256\236\351\252\2147/main/AndroidManifest.xml" "b/students/soft1714080902301/\345\256\236\351\252\2147/main/AndroidManifest.xml" new file mode 100644 index 000000000..8c27780ea --- /dev/null +++ "b/students/soft1714080902301/\345\256\236\351\252\2147/main/AndroidManifest.xml" @@ -0,0 +1,30 @@ + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git "a/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/Main2Activity.java" "b/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/Main2Activity.java" new file mode 100644 index 000000000..bcfabcf2d --- /dev/null +++ "b/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/Main2Activity.java" @@ -0,0 +1,199 @@ +package com.example.myapplication; + +import android.content.Context; +import android.os.Bundle; +import android.os.Environment; +import android.support.v7.app.AppCompatActivity; +import android.util.Log; +import android.view.View; +import android.widget.Button; +import android.widget.TextView; + +import java.io.BufferedReader; +import java.io.File; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.FileReader; +import java.io.IOException; + +public class Main2Activity extends AppCompatActivity { + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_main2); + Button button=(Button)findViewById(R.id.button); + button.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View view) { + TextView spsl=findViewById(R.id.spsl); + TextView sl=findViewById(R.id.sl); + TextView spjg=findViewById(R.id.spjg); + TextView jg=findViewById(R.id.jg); + TextView spdd=findViewById(R.id.spdd); + TextView ddh=findViewById(R.id.ddh); + String text=spsl.getText().toString()+sl.getText().toString()+"\n"+spjg.getText().toString()+jg.getText().toString()+"\n"+spdd.getText().toString()+ddh.getText().toString(); + // Log.i("1",spsl.getText().toString()); + //save(text); + saveTextIntoExternalStorage(text); + + } + }); + } + private void save(String text){ + // 获取内部存储目录 + File dir = this.getFilesDir(); + //File dir = getCacheDir(); + File file = new File(dir,"test.txt"); + if (file.exists()) { // 判断文件是否存在 + Log.i("TAG", file.getAbsolutePath()); + Log.i("TAG", file.length() + ""); // bytes*1024=kb *1024 MB + Log.i("TAG", file.isFile() + ""); + file.canRead(); + file.canWrite(); + file.canExecute(); + + file.getFreeSpace(); + file.getTotalSpace(); + } + + FileOutputStream fos = null; // 字节流 | char | cn : gbk 2 bytes, utf8 3 bytes + + try { // 使用API打开输出流 + fos = openFileOutput("test.txt", MODE_PRIVATE); + //FileOutputStream fos = new FileOutputStream(file); + fos.write(text.getBytes()); // 写入内容 + fos.close(); // 关闭流 + } catch (FileNotFoundException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } finally { + try { + fos.close(); + } catch (IOException e) { + e.printStackTrace(); + } + } + + FileReader reader = null; // char + + try { + reader = new FileReader(file.getAbsoluteFile()); + String line; + BufferedReader bReader = new BufferedReader(reader); + while ((line =bReader.readLine())!=null){ + Log.i("读取","从文件读取的内容: " + line); + } + bReader.close(); + reader.close(); + } catch (FileNotFoundException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } + + // 显示结果 + showResult(file.getAbsolutePath()); + + // 删除文件 + file.delete(); + deleteFile("test.txt"); + } + + // 将文字保存到外部存储 + private void saveTextIntoExternalStorage(String text) { + if (!isExternalStorageWritable()) { + Log.e("外部存储", "外部存储不可写!"); + return; + } + + File dir = getPublicExtStorageDir("DIRECTORY", Environment.DIRECTORY_DOWNLOADS); + File file = new File(dir, "test01.txt"); + + try { + FileOutputStream fos = new FileOutputStream(file); + fos.write(text.getBytes()); + fos.close(); + } catch (FileNotFoundException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } + + FileReader reader = null; + try { + reader = new FileReader(file.getAbsoluteFile()); + String line; + BufferedReader bReader = new BufferedReader(reader); + while ((line =bReader.readLine())!=null){ + Log.i("读取","从文件读取的内容: " + line); + } + bReader.close(); + reader.close(); + } catch (FileNotFoundException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } + + // 显示结果 + showResult(file.getAbsolutePath()); + } + + /* Checks if external storage is available for read and write */ + private boolean isExternalStorageWritable() { + String state = Environment.getExternalStorageState(); + if (Environment.MEDIA_MOUNTED.equals(state)) { + return true; + } + return false; + } + + /* Checks if external storage is available to at least read */ + private boolean isExternalStorageReadable() { + String state = Environment.getExternalStorageState(); + if (Environment.MEDIA_MOUNTED.equals(state) || + Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) { + return true; + } + return false; + } + + // 创建公开的外部存储目录（App卸载时不会删除） + private File getPublicExtStorageDir(String dirName, String type) { + if (type == null) { // 指定文件类型 + type = Environment.DIRECTORY_PICTURES; + } + File dir = new File(Environment.getExternalStoragePublicDirectory(type), dirName); + if (!dir.mkdirs()) { + Log.e("无法创建", "目录无法创建!"); + } + + long freeSpace = dir.getFreeSpace(); + Log.i("剩余空间", "剩余空间大小: " + (freeSpace / 1024 / 1024) + "MB"); + long totalSpace = dir.getTotalSpace(); + Log.i("总空间", "总空间大小: " + (totalSpace / 1024 / 1024) + "MB"); + + return dir; + } + + // 创建私有的外部存储目录（App卸载时会一同删除） + private File getPrivateExtStorageDir(Context context, String dirName, String type) { + if (type == null) { // 指定文件类型 + type = Environment.DIRECTORY_PICTURES; + } + File file = new File(context // + .getExternalFilesDir(type), dirName); + if (!file.mkdirs()) { + Log.e("无法创建", "目录无法创建!"); + } + return file; + } + + + private void showResult(String result) { + ((TextView) findViewById(R.id.text_path)) // + .setText(result.toCharArray(), 0, result.length()); + } +} diff --git "a/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/Main3Activity.java" "b/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/Main3Activity.java" new file mode 100644 index 000000000..7b30d3d2a --- /dev/null +++ "b/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/Main3Activity.java" @@ -0,0 +1,97 @@ +package com.example.myapplication; + +import android.content.Intent; +import android.graphics.Bitmap; +import android.os.Bundle; +import android.provider.MediaStore; +import android.support.v7.app.AppCompatActivity; +import android.util.Log; +import android.view.View; +import android.widget.ImageButton; +import android.widget.TextView; + +import org.json.JSONObject; + +import java.io.BufferedReader; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.net.HttpURLConnection; +import java.net.URL; + +public class Main3Activity extends AppCompatActivity { + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_main3); + getJson(); + ImageButton imageButton=(ImageButton)findViewById(R.id.imageButton); + imageButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + + dispatchTakePictureIntent(); + + } + }); + } + public void getJson(){ + Thread thread=new Thread(new Runnable() { + @Override + public void run() { + try { + String url_s="https://raw.githubusercontent.com/517865058/android-labs-2019/master/students/soft1714080902301/json/test.json"; + + URL url=new URL(url_s); + HttpURLConnection conn = (HttpURLConnection)url.openConnection(); + conn.setConnectTimeout(5000);//设置超时 + conn.setUseCaches(false);//数据不多不用缓存了 + conn.connect(); + InputStream inputStream=conn.getInputStream(); + InputStreamReader inputStreamReader=new InputStreamReader(inputStream); + BufferedReader bufferedReader=new BufferedReader(inputStreamReader); + + if (conn.getResponseCode()==200){ + String inputLine; + StringBuffer resultData=new StringBuffer(); + while ((inputLine=bufferedReader.readLine())!=null){ + resultData.append(inputLine); + } + String text=resultData.toString(); + Log.v("out-----",text); + JSONObject jsonObject=new JSONObject(text); + TextView textView=(TextView)findViewById(R.id.name); + TextView textView1=(TextView)findViewById(R.id.username); + textView.setText(jsonObject.getString("name")); + textView1.setText(jsonObject.getString("username")); + //JSONArray jsonArray=jsonObject.getJSONArray(""); + + } + }catch (Exception e){ + e.printStackTrace(); + } + + } + }); + thread.start(); + } + static final int REQUEST_IMAGE_CAPTURE = 1; + private void dispatchTakePictureIntent() { + Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); + if (takePictureIntent.resolveActivity(getPackageManager()) != null) { + startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE); + setResult(1); + } + + } + @Override + protected void onActivityResult(int requestCode, int resultCode, Intent data) { + if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) { + Bundle extras = data.getExtras(); + Bitmap imageBitmap = (Bitmap) extras.get("data"); + ImageButton imageButton=(ImageButton)findViewById(R.id.imageButton); + imageButton.setImageBitmap(imageBitmap); + } + } + +} diff --git "a/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/MainActivity.java" "b/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/MainActivity.java" new file mode 100644 index 000000000..da16f8063 --- /dev/null +++ "b/students/soft1714080902301/\345\256\236\351\252\2147/main/java/com/example/myapplication/MainActivity.java" @@ -0,0 +1,37 @@ +package com.example.myapplication; + +import android.content.Intent; +import android.os.Bundle; +import android.support.v7.app.AppCompatActivity; +import android.view.View; +import android.widget.Button; + +public class MainActivity extends AppCompatActivity { + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_main); + Button button=(Button) findViewById(R.id.v); + button.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + + // 另一个Activity的完整名称 = edu.androidlabs.soft123456(包名小写).Soft123456Activity(类名) + Intent intent = new Intent(MainActivity.this,Main2Activity.class); + startActivity(intent); + //startActivity(intent); + + } + }); + Button button1=(Button) findViewById(R.id.me); + button1.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + Intent intent = new Intent(MainActivity.this,Main3Activity.class); + startActivity(intent); + } + }); + + } +} diff --git "a/students/soft1714080902301/\345\256\236\351\252\2147/main/res/drawable/ic_launcher_background.xml" "b/students/soft1714080902301/\345\256\236\351\252\2147/main/res/drawable/ic_launcher_background.xml" new file mode 100644 index 000000000..0d025f9bf --- /dev/null +++ "b/students/soft1714080902301/\345\256\236\351\252\2147/main/res/drawable/ic_launcher_background.xml" @@ -0,0 +1,170 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git "a/students/soft1714080902301/\345\256\236\351\252\2147/main/res/drawable/shape.xml" "b/students/soft1714080902301/\345\256\236\351\252\2147/main/res/drawable/shape.xml" new file mode 100644 index 000000000..b7f4f70d2 --- /dev/null +++ "b/students/soft1714080902301/\345\256\236\351\252\2147/main/res/drawable/shape.xml" @@ -0,0 +1,8 @@ + + + + + + \ No newline at end of file diff --git "a/students/soft1714080902301/\345\256\236\351\252\2147/main/res/layout/activity_main.xml" "b/students/soft1714080902301/\345\256\236\351\252\2147/main/res/layout/activity_main.xml" new file mode 100644 index 000000000..9692ff0ba --- /dev/null +++ "b/students/soft1714080902301/\345\256\236\351\252\2147/main/res/layout/activity_main.xml" @@ -0,0 +1,228 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +