我想通过意图将R.drawable id传递给另一个活动。我正在使用开关找到正确的drawable,然后使用putExtra()传递它。但是当我调用getIntExtra时,它说我传递了一个String。这段代码有问题还是在其他地方?
int i = getExerciseId(((TextView)getView().findViewById(R.id.fragTextView)).getText().toString());
Intent intent = new Intent(v.getContext(), LevelActivity.class);
intent.putExtra("exerciseId", ((TextView)getView().findViewById(R.id.fragTextView)).getText().toString());
intent.putExtra("image", i);
startActivity(intent);
}
public int getExerciseId(String s) {
int i = -1;
switch (s) {
case "Weather":
i = R.drawable.weather;
break;
case "Weekend":
i = R.drawable.weekend;
break;
case "Hobbies":
i = R.drawable.hobbies;
break;
case "Music":
i = R.drawable.music;
break;
case "Family":
i = R.drawable.family;
}
return i;
编辑:没有日志错误,我在代码中看到一条红线消息:
getIntExtra(String, int) in Intent cannot be applied to (String)
在这行代码中:
intent.getIntExtra("image");
答案 0 :(得分:4)
它没有告诉您正在获取字符串,但是您使用参数不足调用getIntExtra
方法。用
getIntExtra("image", 0); // or whichever default value you want to use.
答案 1 :(得分:3)
getIntExtra(String name, int defaultValue)
您必须为方法调用提供默认值。如果未找到密钥,则返回默认值。
答案 2 :(得分:1)
获取int值
//wirte name=imge and defaultValue =-1
//and have a check if value for image is -1 then no value was received
intent.getIntExtra(name, defaultValue);