Make your app the default SMS app

最近使用Google Messenger发现有一个设定默认短信的功能,很好奇,研究了一下. 现在有很多短信应用,很强大,可以帮助用户把一个短信费用转化成流量费用,于是google出来说话了

Some of you have built SMS apps using hidden APIs—a practice we discourage because hidden APIs may be changed or removed and new devices are not tested against them for compatibility. So, to provide you with a fully supported set of APIs for building SMS apps

看起来,你做的足够好,用户足够大,还是挺被重视的

4.4开始有一个新的Intent,SMS_DELIVER_ACTION(短信),WAP_PUSH_DELIVER_ACTION(彩信),更改默认应用的方式很简单

Intent intent = new Intent(Telephony.Sms.Intents.ACTION_CHANGE_DEFAULT);
intent.putExtra(Telephony.Sms.Intents.EXTRA_PACKAGE_NAME, getPackageName());
startActivity(intent);

加一段代码

currentPackageName = getPackageName();
String defaultSmsApp = Telephony.Sms.getDefaultSmsPackage(this);
if (currentPackageName != null && !currentPackageName.equals(defaultSmsApp)) {
    SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
    SharedPreferences.Editor editor = sharedPreferences.edit();
    editor.putString(DEDAULTSMS, defaultSmsApp);
    editor.apply();
}
register.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        Intent intent = new Intent(Telephony.Sms.Intents.ACTION_CHANGE_DEFAULT);
        intent.putExtra(Telephony.Sms.Intents.EXTRA_PACKAGE_NAME, getPackageName());
        startActivity(intent);
    }
});
unregister.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        String defaultSmsApp = sharedPreferences.getString(DEDAULTSMS, null);
        if (defaultSmsApp != null) {
            Intent intent = new Intent(Telephony.Sms.Intents.ACTION_CHANGE_DEFAULT);
            intent.putExtra(Telephony.Sms.Intents.EXTRA_PACKAGE_NAME, defaultSmsApp);
            startActivity(intent);
        } else {
            Toast.makeText(getApplicationContext(), "failed unregister", Toast.LENGTH_SHORT).show();
        }
    }
});