我有这段代码通过 public void Call(String s) {//Appeler
String url = "tel:" + s;
Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse(url));
startActivity(intent);
}
public void Sms(String s){
startActivity(new Intent(Intent.ACTION_VIEW, Uri.fromParts("sms", s, null)));
}
发送短信并拨打电话号码:
AVCaptureDevice
它在我的手机中看起来很好,没有崩溃,但在我的平板电脑中不支持短信和通话(没有SIM卡和短信和拨号应用程序)应用程序在调用这些方法时崩溃,所以如何处理那个例外?
答案 0 :(得分:2)
您必须始终检查Activity
是否可以处理您的Intent
假设 Skype 安装在平板电脑上,可以处理调用意图然后启动意图
PackageManager packageManager = getPackageManager();
List activities = packageManager.queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY);
boolean isIntentSafe = activities.size() > 0;
if(isIntentSafe)
{
// call Call(546) or Sms(1235)
}else{
// No activity is present to handle your intent
}
同时检查此link
答案 1 :(得分:1)
那应该有用
PackageManager pm = this.getPackageManager();
if (pm.hasSystemFeature(PackageManager.FEATURE_TELEPHONY)) {
System.out.println("Supported");
} else {
System.out.println("nope");
}
答案 2 :(得分:1)
您可以这样处理:
public void Sms(String s){
try {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.fromParts("sms", s, null)));
} catch (ActivityNotFoundException e) {
Toast.makeText(getActivity(), "No app for this", Toast.LENGTH_LONG).show();
}
}