Extends from previous exercise,
AndroidTranslate, using Google Translate API in Android application. It's a multi-language translation application. There are two spinner in the application, user can select the language to be translated.
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Please note:
- google-api-translate-java have to be downloaded and build path have to be set, refer the article
google-api-translate-java.
- "android.permission.INTERNET" have to be set in AndroidMainfest.xml, refer to the article
AndroidTranslate, using Google Translate API in Android application.
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Modify main.xml to add two Spinner to select the language to be translated from and to.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<EditText
android:id="@+id/InputText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="from:"
/>
<Spinner
android:id = "@+id/spinner_InputLanguage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="to:"
/>
<Spinner
android:id = "@+id/spinner_OutputLanguage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<Button
android:id="@+id/TranslateButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Translate"
/>
<TextView
android:id="@+id/OutputText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
main.xml can be downloaded
here
.
Implement a file arrayLanguage.xml in the folder /res/values/
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="language">
<item>ARABIC</item>
<item>BULGARIAN</item>
<item>CATALAN</item>
<item>CHINESE</item>
<item>CHINESE_SIMPLIFIED</item>
<item>CHINESE_TRADITIONAL</item>
<item>CROATIAN</item>
<item>CZECH</item>
<item>DANISH</item>
<item>DUTCH</item>
<item>ENGLISH</item>
<item>FILIPINO</item>
<item>FINNISH</item>
<item>FRENCH</item>
<item>GERMAN</item>
<item>GREEK</item>
<item>HEBREW</item>
<item>HINDI</item>
<item>INDONESIAN</item>
<item>ITALIAN</item>
<item>JAPANESE</item>
<item>KOREAN</item>
<item>LATVIAN</item>
<item>LITHUANIAN</item>
<item>NORWEGIAN</item>
<item>POLISH</item>
<item>PORTUGESE</item>
<item>ROMANIAN</item>
<item>RUSSIAN</item>
<item>SERBIAN</item>
<item>SLOVAK</item>
<item>SLOVENIAN</item>
<item>SPANISH</item>
<item>SWEDISH</item>
<item>UKRANIAN</item>
<item>VIETNAMESE</item>
</string-array>
</resources>
arrayLanguage.xml can be downloaded
here.
Modify AndroidTranslate.java
package com.exercise.AndroidTranslate;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import com.google.api.translate.Language;
import com.google.api.translate.Translate;
public class AndroidTranslate extends Activity {
EditText MyInputText;
Button MyTranslateButton;
TextView MyOutputText;
Spinner spinner_InputLanguage, spinner_OutputLanguage;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MyInputText = (EditText)findViewById(R.id.InputText);
MyTranslateButton = (Button)findViewById(R.id.TranslateButton);
MyOutputText = (TextView)findViewById(R.id.OutputText);
MyTranslateButton.setOnClickListener(MyTranslateButtonOnClickListener);
ArrayAdapter<CharSequence> adapter
= ArrayAdapter.createFromResource(this,
R.array.language, android.R.layout.simple_spinner_item);
spinner_InputLanguage = (Spinner) findViewById(R.id.spinner_InputLanguage);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner_InputLanguage.setAdapter(adapter);
spinner_OutputLanguage = (Spinner) findViewById(R.id.spinner_OutputLanguage);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner_OutputLanguage.setAdapter(adapter);
}
private Button.OnClickListener MyTranslateButtonOnClickListener
= new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String InputString;
String OutputString = null;
InputString = MyInputText.getText().toString();
Language fromLanguage =
Language.valueOf((String)spinner_InputLanguage
.getItemAtPosition((int) spinner_InputLanguage
.getSelectedItemId()));
Language toLanguage =
Language.valueOf((String)spinner_OutputLanguage
.getItemAtPosition((int) spinner_OutputLanguage
.getSelectedItemId()));
try {
Translate.setHttpReferrer("http://android-er.blogspot.com/");
OutputString = Translate.execute(InputString,
fromLanguage, toLanguage);
} catch (Exception ex) {
ex.printStackTrace();
OutputString = "Error";
}
MyOutputText.setText(OutputString);
}
};
}
AndroidTranslate.java can be downloaded
here.
In this exercise, two spinner are used to select the language to be translated from and to. A array-string are used to store the languages.
It can be retrieved using:
(String)spinner_InputLanguage.getItemAtPosition((int) spinner_InputLanguage.getSelectedItemId())
(String)spinner_OutputLanguage.getItemAtPosition((int) spinner_OutputLanguage.getSelectedItemId())
It's same as the parameters to be passed to Translate.execute(), but in String type, not the expected Language type. So we have to use the Language.valueOf() to convert it to Language type.
The Android Scripting Environment (ASE) brings scripting languages to Android by allowing you to edit and execute scripts and interactive interpreters directly on the Android device.
