android develop sample code–TTS android.settings.TextToSpeechSetting

1.android tts code here to call com.android.settings.TextToSpeechSetting:

Intent intent = new Intent();
                 intent.setAction("android.speech.tts.engine.CHECK_TTS_DATA");
                 intent.setClassName("com.android.settings", "com.android.settings.TextToSpeechSettings");
                 PkrssActivity.s_pkrss.startActivity(intent);

or

public static void openApp(String packageName,String className) {
          try{
              if(className.length()==0){
                  PackageInfo pi =  PkrssActivity.s_pkrss.getPackageManager().getPackageInfo(packageName, 0);
        
                  Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
                  resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);
                  resolveIntent.setPackage(pi.packageName);
        
                  List<ResolveInfo> apps = PkrssActivity.s_pkrss.getPackageManager().queryIntentActivities(resolveIntent, 0);
        
                  ResolveInfo ri = apps.iterator().next();
                  if (ri != null ) {
                      packageName = ri.activityInfo.packageName;
                      className = ri.activityInfo.name;
                  }
              }
        
              Intent intent = new Intent(Intent.ACTION_MAIN);
              intent.addCategory(Intent.CATEGORY_LAUNCHER);
    
              ComponentName cn = new ComponentName(packageName, className);
    
              intent.setComponent(cn);
              PkrssActivity.s_pkrss.startActivity(intent);
          }catch(Exception e){
              e.printStackTrace();
          }
    }

2.check tts is installed

Intent checkIntent = new Intent();
        checkIntent.setAction(TextToSpeechBeta.Engine.ACTION_CHECK_TTS_DATA);
        startActivityForResult(checkIntent, REQ_TTS_STATUS_CHECK);

it will return the callback in this function:

protected  void onActivityResult(int requestCode, int resultCode, Intent data) {
        if(requestCode == REQ_TTS_STATUS_CHECK)
        {
            switch (resultCode) {
            case TextToSpeechBeta.Engine.CHECK_VOICE_DATA_PASS:
                //ok
            {
                mTTS = new TextToSpeechBeta(this, this);
                Log.v(TAG, "TTS Engine is installed!");  
                
            }
                
                break;
            case TextToSpeechBeta.Engine.CHECK_VOICE_DATA_BAD_DATA:
            case TextToSpeechBeta.Engine.CHECK_VOICE_DATA_MISSING_DATA:
            case TextToSpeechBeta.Engine.CHECK_VOICE_DATA_MISSING_VOLUME:
            {
                //in here,need redownload data.
                Log.v(TAG, "Need language stuff:"+resultCode);
                Intent dataIntent = new Intent();
                dataIntent.setAction(TextToSpeechBeta.Engine.ACTION_INSTALL_TTS_DATA);
                startActivity(dataIntent);
            }
                break;
            case TextToSpeechBeta.Engine.CHECK_VOICE_DATA_FAIL:
                // check failed
            default:
                Log.v(TAG, "Got a failure. TTS apparently not available");
                break;
            }
        }
        else
        {
            // other Intent return result
        }
    }

 

3.install tts from web url apk:

download system tts lanauage package data:

Intent dataIntent = new Intent();
                dataIntent.setAction(TextToSpeechBeta.Engine.ACTION_INSTALL_TTS_DATA);
                startActivity(dataIntent);

or download from other third part lanauage code from web url:

private void alertInstallEyesFreeTTSData()
    {
        Builder alertInstall = new AlertDialog.Builder(this)
            .setTitle("lost voice engine lanauage package")
            .setMessage("download tts lanauage package")
            .setPositiveButton("ok", new DialogInterface.OnClickListener() {
                
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    //download eyes-free tts lanauage package
                    String ttsDataUrl = "http://eyes-free.googlecode.com/files/tts_3.1_market.apk";
                    Uri ttsDataUri = Uri.parse(ttsDataUrl);
                    Intent ttsIntent = new Intent(Intent.ACTION_VIEW, ttsDataUri);
                    startActivity(ttsIntent);
                }
            })
            .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    finish();
                }
            });
            alertInstall.create().show();
        
    }

4. instance the tts object.