Add Class.

andorid_general_library/src/main/java/com/anson/andorid_general_library/CommonFiles.java

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+package com.anson.andorid_general_library;
+
+import android.os.Environment;
+import android.util.Log;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.IOException;
+
+/**
+ * Created by Anson on 2015/3/25.
+ */
+public class CommonFiles {
+    /** SD卡位址 */
+    public static final String SDCARD_PATH = Environment.getExternalStorageDirectory().getAbsolutePath();
+
+
+    /**
+     * 將檔案儲存份到SD卡
+     * @param TAG 標籤
+     * @param folder 資料夾
+     * @param fileName 檔案名稱
+     * @param fileContent 檔案內容
+     * @return 檔案名稱
+     */
+    public static String saveContentToSdcard(String TAG,String folder, String fileName, String fileContent) {
+        try {
+            String status = Environment.getExternalStorageState();
+            // 判斷SD卡是否存在
+            if (status.equals(Environment.MEDIA_MOUNTED)) {
+                File destDir = new File(SDCARD_PATH + "/" + folder);
+                if (!destDir.exists()) {
+                    // 創建文件夾
+                    destDir.mkdirs();
+                }
+                File saveFile = new File(SDCARD_PATH + "/" + folder, fileName + ".txt");
+                FileOutputStream outStream = new FileOutputStream(saveFile);
+                outStream.write(fileContent.getBytes());
+                outStream.close();
+            }
+        } catch (FileNotFoundException e) {
+            Log.e(TAG, e.toString());
+        } catch (IOException e) {
+            Log.e(TAG, e.toString());
+        }
+        return fileName;
+    }
+
+    /**
+     * 取得檔案內容
+     * @param TAG 標籤
+     * @param file 檔案本身
+     * @return 檔案文字內容
+     */
+    public static String getFileContent(String TAG, File file) {
+        StringBuffer sb = new StringBuffer();
+
+        try {
+            BufferedReader br = new BufferedReader(new FileReader(file));
+            String temp = br.readLine();
+            while (temp!=null){
+                sb.append(temp+"\n");
+                temp=br.readLine();
+            }
+            br.close();
+        } catch (FileNotFoundException e) {
+            Log.e(TAG, e.toString());
+        } catch (IOException e) {
+            Log.e(TAG, e.toString());
+        }
+        return sb.toString();
+    }
+}

andorid_general_library/src/main/java/com/anson/andorid_general_library/CommonImage.java

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+package com.anson.andorid_general_library;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.net.Uri;
+import android.util.Log;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+/**
+ * Created by Anson on 2015/3/26.
+ */
+public class CommonImage {
+
+    /**
+     * 取得Padding 圖片
+     */
+    public static Bitmap getPaddingBitmap(Bitmap src, int paddingWidth, int paddingHeight){
+        Bitmap outPutBitmap = Bitmap.createBitmap(src.getWidth() + (paddingWidth*2),src.getHeight() + (paddingHeight*2), Bitmap.Config.ARGB_8888);
+        Canvas can = new Canvas(outPutBitmap);
+        can.drawARGB(0,255,255,255);
+        can.drawBitmap(src, paddingWidth, paddingHeight, null);
+        src.recycle();
+        return outPutBitmap;
+    }
+
+
+    /** 取得網路上圖片
+     * @param url 網址
+     * @return 圖片
+     */
+    public static Bitmap getBitmapFromUrl(String url) {
+        URL imageUrl = null;
+        Bitmap bitmap = null;
+        try {
+            imageUrl = new URL(url);
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+            return null;
+        }
+        try {
+            HttpURLConnection conn = (HttpURLConnection) imageUrl.openConnection();
+            conn.setDoInput(true);
+            conn.connect();
+            InputStream is = conn.getInputStream();
+            bitmap = BitmapFactory.decodeStream(is);
+            is.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return bitmap;
+    }
+    /**
+     * 取得SD卡內的圖片
+     * @param folder 資料夾
+     * @param fileName 檔案名稱
+     * @param format 圖片副檔名(jpg png 等等)
+     * @return 圖片
+     */
+    public static Bitmap getSdcardBitmap(String folder, String fileName,String format) {
+        try{
+            Bitmap bitmap = BitmapFactory.decodeFile(CommonFiles.SDCARD_PATH + "/" + folder + "/" + fileName + "." + format);
+            return bitmap;
+        } catch (Exception e){
+            e.printStackTrace();
+            return null;
+        }
+    }
+    /**
+     * 取得drawable裡的圖片
+     * @param context
+     * @param id Drawable路徑
+     * @param w 想要顯示的寬
+     * @param h 想要顯示的高
+     * @return Bitmap
+     */
+    public static Bitmap getDrawableBitmap(Context context, int id, int w, int h) {
+        Resources resources = context.getResources();
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+        BitmapFactory.decodeResource(resources, id, options);
+        options.inSampleSize = calculateInSampleSize(options, w, h);
+        options.inJustDecodeBounds = false;
+        return BitmapFactory.decodeResource(resources, id, options);
+    }
+
+    /** 取得options的SampleSize */
+    public static int calculateInSampleSize(BitmapFactory.Options options, int reqWidth,int reqHeight) {
+        final int height = options.outHeight;
+        final int width = options.outWidth;
+        int inSampleSize = 1;
+
+        if (height > reqHeight || width > reqWidth) {
+            final int halfHeight = height / 2;
+            final int halfWidth = width / 2;
+            while ((halfHeight / inSampleSize) > reqHeight
+                    && (halfWidth / inSampleSize) > reqWidth) {
+                inSampleSize *= 2;
+            }
+        }
+        return inSampleSize;
+    }
+
+    /**
+     * 下載URL上的檔案到SD卡
+     * @param url url地址
+     * @param path SD卡路徑
+     * @param fileName 欲取名的檔案名稱
+     */
+//    public static void downloadFileFromUrl(String url, String path, String fileName) throws IOException {
+//        File dir = new File(path);
+//        if (dir.exists() == false) {
+//            dir.mkdirs();
+//        }
+//        URL downloadUrl = new URL(url); // you can write any link here
+//        File file = new File(dir, fileName);
+//        URLConnection uCon = downloadUrl.openConnection();
+//        InputStream is = uCon.getInputStream();
+//        BufferedInputStream bis = new BufferedInputStream(is);
+//        ByteArrayBuffer baf = new ByteArrayBuffer(5000);
+//        int current = 0;
+//        while ((current = bis.read()) != -1) {
+//            baf.append((byte) current);
+//        }
+//        FileOutputStream fos = new FileOutputStream(file);
+//        fos.write(baf.toByteArray());
+//        fos.flush();
+//        fos.close();
+//    }
+
+    /**
+     * 取得ZIP檔裡的圖片
+     *
+     * @param path     SD卡路徑
+     * @param fileName 檔案名稱
+     * @param w        想要顯示的寬
+     * @param h        想要顯示的高
+     * @return Bitmap
+     */
+    public static Bitmap getZipBitmap(String TAG ,String path, String fileName, int w, int h) {
+        File file = new File(path);
+        Bitmap result = null;
+        ZipFile zip = null;
+        try {
+            zip = new ZipFile(file, ZipFile.OPEN_READ);
+            ZipEntry entry = zip.getEntry(fileName);
+            if (entry != null && !entry.isDirectory()) {
+                InputStream is = null;
+                InputStream readIs = null;
+                is = zip.getInputStream(entry);
+                readIs = zip.getInputStream(entry);
+                BitmapFactory.Options options = new BitmapFactory.Options();
+                options.inJustDecodeBounds = true;
+                // 讀取原圖大小
+                BitmapFactory.decodeStream(readIs, null, options);
+                readIs.close();
+                options.inSampleSize = calculateInSampleSize(options, w, h);
+                options.inJustDecodeBounds = false;
+
+                result = BitmapFactory.decodeStream(is, null, options);
+                is.close();
+            } else {
+                Log.e(TAG,"zip file name error");
+            }
+            zip.close();
+        } catch (IOException e) {
+            Log.e(TAG,"zip path error");
+        }
+        return result;
+    }
+
+
+
+    /**
+     * 用 youtube 影片網址取的影片的 ID
+     * @param videoUri 影片的網址，例如: https://www.youtube.com/watch?v=pm30TnTrtUU
+     * @return pm30TnTrtUU
+     */
+    public static String getVideoId(String videoUri) {
+        return Uri.parse(videoUri).getQueryParameter("v");
+    }
+
+    /**
+     * 用影片的 ID 取得影片的縮圖
+     * @param videoId 影片的 ID，例如: pm30TnTrtUU
+     * @return http://i1.ytimg.com/vi/pm30TnTrtUU/default.jpg
+     */
+    public static String getImageUrl(String videoId) {
+        return String.format("http://i1.ytimg.com/vi/%1$s/default.jpg",videoId);
+    }
+}

andorid_general_library/src/main/java/com/anson/andorid_general_library/CommonKeyboard.java

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+package com.anson.andorid_general_library;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.content.Context;
+import android.os.Handler;
+import android.os.SystemClock;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
+
+/**
+ * Created by Anson on 2015/3/25.
+ */
+public class CommonKeyboard {
+
+    /**顯示鍵盤*/
+    public static void showKeyBoard(final Context context,final View view){
+        view.setFocusable(true);
+        view.setFocusableInTouchMode(true);
+        view.requestFocus();
+
+        new Handler().postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                InputMethodManager imm = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);
+                imm.showSoftInput(view, InputMethodManager.SHOW_FORCED);
+            }
+        }, 300);
+    }
+
+    /**隱藏鍵盤*/
+    public static void hideKeyBoard(Activity activity){
+        InputMethodManager inputManager = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
+        inputManager.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
+    }
+    /**隱藏鍵盤*/
+    public static void hideKeyBoard(Activity activity,View view){
+        InputMethodManager imm = (InputMethodManager)activity.getSystemService(Context.INPUT_METHOD_SERVICE);
+        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
+    }
+
+
+
+    /**設定Focus & 鍵盤*/
+    @SuppressLint("Recycle")
+    public static void setRequestFocus(final Context context , final EditText et){
+        et.requestFocus();
+        et.dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, 0, 0, 0));
+        et.setSelection(et.getText().length());
+
+        new Handler().post(new Runnable() {
+            @Override
+            public void run() {
+                InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
+                imm.showSoftInput(et, InputMethodManager.SHOW_FORCED);
+            }
+        });
+    }
+
+}