tuto_ecj_android
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| tuto_ecj_android [2014/03/03 14:16] – [5. Print configuration data] Denis Pallez | tuto_ecj_android [2014/03/03 16:27] (current) – Denis Pallez | ||
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| - | ====== | + | ====== |
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| - | - [[# | + | |
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| ===== 1. Installation of Eclispe and Android SDK ===== | ===== 1. Installation of Eclispe and Android SDK ===== | ||
| First of all, to make the development of Android app easier, you have to install the Eclipse framework. In this environment, | First of all, to make the development of Android app easier, you have to install the Eclipse framework. In this environment, | ||
| - | |||
| - | [[# | ||
| ===== 2. Create a new Android Project ===== | ===== 2. Create a new Android Project ===== | ||
| Line 19: | Line 8: | ||
| When the two first steps are done, we will create a new Android project with eclipse. < | When the two first steps are done, we will create a new Android project with eclipse. < | ||
| - In your workspace, your new project should be as shown below :</ | - In your workspace, your new project should be as shown below :</ | ||
| - | |||
| - | [[# | ||
| ===== 3. Add ECJ library in your project ===== | ===== 3. Add ECJ library in your project ===== | ||
| Line 37: | Line 24: | ||
| - Right click on this new package -> new -> File | - Right click on this new package -> new -> File | ||
| - Name the new file " | - Name the new file " | ||
| - | |||
| - | [[# | ||
| ===== 4. Collect configuration data ===== | ===== 4. Collect configuration data ===== | ||
| Now, to get the all data in " | Now, to get the all data in " | ||
| - | < | + | < |
| InputStream configStream = null; | InputStream configStream = null; | ||
| try { | try { | ||
| Line 56: | Line 41: | ||
| If your configuration file is named " | If your configuration file is named " | ||
| It only remains to transfer the InputStream " | It only remains to transfer the InputStream " | ||
| - | < | + | < |
| ParameterDatabase paramDB = null; | ParameterDatabase paramDB = null; | ||
| try { | try { | ||
| Line 67: | Line 52: | ||
| Now, you could run your evolutionary algorithm with the code below (more details are given in the ECJ manual, page 44) | Now, you could run your evolutionary algorithm with the code below (more details are given in the ECJ manual, page 44) | ||
| - | < | + | < |
| EvolutionState evaluatedState = Evolve.initialize(paramDB, | EvolutionState evaluatedState = Evolve.initialize(paramDB, | ||
| evaluatedState.startFresh(); | evaluatedState.startFresh(); | ||
| Line 74: | Line 59: | ||
| result = evaluatedState.evolve(); | result = evaluatedState.evolve(); | ||
| </ | </ | ||
| - | |||
| - | [[# | ||
| ===== 5. Print configuration data ===== | ===== 5. Print configuration data ===== | ||
| Line 97: | Line 80: | ||
| </ | </ | ||
| \\ {{ECJ_Android_fichiers: | \\ {{ECJ_Android_fichiers: | ||
| - | |||
| - | [[# | ||
| ===== 6. Write in a File with Android ===== | ===== 6. Write in a File with Android ===== | ||
| - | However, ECJ may need a real File to run, and not an InputStream. For example, to initialize a population.\\ \\ In this part we'll see how to write a file.\\ As in the previous example you'll need a package named " | + | However, ECJ may need a real File to run, and not an InputStream. For example, to initialize a population. |
| - | [[# | + | In this part we'll see how to write a file. |
| + | As in the previous example you'll need a package named " | ||
| + | After, you'll need the context of you application : <code java> | ||
| + | Then, you have to load your file on your smartphone : <code java> | ||
| + | Finaly, you can write into your file thanks to a FileWrite and a BufferedWriter : <code java> | ||
| + | FileWriter fileWriter = null; | ||
| + | try { | ||
| + | fileWriter = new FileWriter(file); | ||
| + | } | ||
| + | catch (IOException e1) { | ||
| + | e1.printStackTrace(); | ||
| + | } | ||
| + | BufferedWriter output = new BufferedWriter(fileWriter); | ||
| + | try { | ||
| + | output.write(" | ||
| + | } | ||
| + | output.flush(); | ||
| + | catch (Exception e) { | ||
| + | Toast.makeText(mContext, | ||
| + | } | ||
| + | finally { | ||
| + | try { | ||
| + | output.close(); | ||
| + | fileWriter.close(); | ||
| + | } | ||
| + | catch (IOException e) { | ||
| + | Toast.makeText(mContext, | ||
| + | } | ||
| + | } | ||
| + | </ | ||
| + | |||
| + | As you can understand, this code write the text "Hello World" into the file " | ||
| ===== 7. Use a file in an another one ===== | ===== 7. Use a file in an another one ===== | ||
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| Now, you can use this file as in the previous [[# | Now, you can use this file as in the previous [[# | ||
| - | But, as we said before, ECJ may need a file. Or more precisely, the path of this file.\\ For a population initialization, | + | But, as we said before, ECJ may need a file. Or more precisely, the path of this file.\\ For a population initialization, |
| - | + | < | |
| - | [[# | + | pop.file = / |
| + | </ | ||
| + | Now, if you load " | ||
| Any questions or suggestions ? [[guegan@polytech.unice.fr; | Any questions or suggestions ? [[guegan@polytech.unice.fr; | ||
| + | |||
| + | < | ||
| + | |||
tuto_ecj_android.1393856218.txt.gz · Last modified: 2014/03/03 14:16 by Denis Pallez