实现更换背景、画板保存路径可以找到

src/app/src/main/java/net/micode/notes/ui/DrawActivity.java

@@ -52,7 +52,9 @@ public class DrawActivity extends Activity {
             @Override
             public void onClick(View view) {
                 String path = saveBitmap();
-                Log.i(TAG, path);
+                getIntent().putExtra("path", path);
+                setResult(1, getIntent());
+                Log.i(null, path);
                 finish();
             }
         });
@@ -105,20 +107,6 @@ public class DrawActivity extends Activity {
         });
     }
 
-    public void save() {
-        File file = new File(Environment.getExternalStorageDirectory(),
-                System.currentTimeMillis() + ".jpg");
-        OutputStream stream;
-        Log.i(TAG, Environment.getExternalStorageDirectory().toString());
-        try {
-            stream = new FileOutputStream(file);
-            mBitmap.compress(Bitmap.CompressFormat.JPEG, 200, stream);
-            stream.close();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
     public String saveBitmap(){
         //获得系统当前时间，并以该时间作为文件名
         SimpleDateFormat formatter   =   new SimpleDateFormat("yyyyMMddHHmmss");
@@ -153,7 +141,8 @@ public class DrawActivity extends Activity {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
-
         return paintPath;
     }
+
+
 }

src/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java

@@ -202,6 +202,8 @@ public class NoteEditActivity extends Activity implements OnClickListener,
 
     private Pattern mPattern;
 
+    private String DrawPath;
+
     private TextToSpeech mTTS;
 
     @Override
@@ -234,6 +236,17 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
     }
 
+//新activity回传数据
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (requestCode == 0 && resultCode == 1) {
+            //对数据进行处理
+            DrawPath = data.getStringExtra("path");
+            Log.i(TAG, "onActivityResult: 11111111111111111111111");
+        }
+    }
+
     private boolean initActivityState(Intent intent) {
         /**
          * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id,
@@ -462,8 +475,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                     saveNote();
                     Intent intent = new Intent();
                     intent.setClass(NoteEditActivity.this, DrawActivity.class);
-                    startActivity(intent);
-
+                    startActivityForResult(intent, 0);
                 }
             }
         });
@@ -730,8 +742,6 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                 String saved_password=load("data.txt");
                 Log.i(TAG,saved_password);
                 if(entered_password.equals(saved_password)){
-                    //noteMoveToPF();
-                        //Log.i(TAG, "22222");
                     Toast.makeText(NoteEditActivity.this, "Note has moved to Private Folder", Toast.LENGTH_LONG).show();
                     noteMoveToPF();
                 }else{

src/app/src/main/java/net/micode/notes/ui/NotesListActivity.java

@@ -174,10 +174,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         context = NotesListActivity.this;
         switch (requestCode) {
-            case 1:
+            case 3:
                 if (resultCode == RESULT_OK) {
                     if (Build.VERSION.SDK_INT >= 19) {
-                        handeImage(data);
+                        handelImage(data);
                     } else {
                         handleImageBefor(data);
                     }
@@ -586,7 +586,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     private void openFolder(NoteItemData data) {
         mCurrentFolderId = data.getId();
         String iddd = Long.toString(mCurrentFolderId);
-        Log.i(TAG, iddd);
+        //Log.i(TAG, iddd);
         startAsyncNotesListQuery();
         if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
             mState = ListEditState.CALL_RECORD_FOLDER;
@@ -840,7 +840,6 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     public void ResetPassword(){
         String if_now_create = "true";
         enterPrivateFolder(if_now_create);
-        Log.i(TAG, "ResetPassword: 11111111111111111111111111111");
     }
 
     @Override
@@ -1015,7 +1014,6 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         showSoftInput();
         if (create.equals("false")){
             builder.setTitle("enter the password");
-            //Log.i(TAG, "enterPrivateFolder: 111");
         }
         else{
             builder.setTitle("set the password for the Private Folder");
@@ -1107,7 +1105,6 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                         if (item.getType() == Notes.TYPE_FOLDER
                                 || item.getType() == Notes.TYPE_SYSTEM) {
                             openFolder(item);
-                            Log.i(TAG, "onItemClick: 1");
                         } else if (item.getType() == Notes.TYPE_NOTE) {
                             openNode(item);
                         } else {
@@ -1198,7 +1195,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     }
 
 
-    private void handeImage(Intent data) {
+    private void handelImage(Intent data) {
         String imagePath = null;
         Uri uri2 = data.getData();
         if (DocumentsContract.isDocumentUri(this, uri2)) {
@@ -1216,13 +1213,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         } else if ("file".equalsIgnoreCase(uri2.getScheme())) {
             imagePath = uri2.getPath();
         }
-        displayIaage(imagePath);
+        displayImage(imagePath);
     }
 
     private void handleImageBefor(Intent data) {
         Uri uri = data.getData();
         String imagePath = getImagePath(uri, null);
-        displayIaage(imagePath);
+        displayImage(imagePath);
     }
 
     private String getImagePath(Uri uri, String selection) {
@@ -1237,10 +1234,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         return path;
     }
 
-    private void displayIaage(String path) {
+    private void displayImage(String path) {
         if (path != null) {
             Bitmap bitmap = BitmapFactory.decodeFile(path);
-            //imageView.setImageBitmap(bitmap);
             Drawable drawable = new BitmapDrawable(bitmap);
             Toast.makeText(context, " 获取图片", Toast.LENGTH_SHORT).show();
             getWindow().setBackgroundDrawable(drawable);

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

@@ -18,8 +18,8 @@
 <FrameLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
-    android:layout_height="fill_parent"
-    android:background="@drawable/list_background">
+    android:layout_height="fill_parent">
+    <!--android:background="@drawable/list_background"-->
 
     <LinearLayout
         android:layout_width="fill_parent"