留下来以后备用！
int i= getResources().getIdentifier("icon", "drawable", getPackageName()) ;
if(i>0)
{Log.i("aa","aa");}
else
{Log.i("vbv","aa");}
或者
int resID = getResources().getIdentifier("org.loveandroid.androidtest:drawable/gallery_photo_1",null,null);
int resID = getResources().getIdentifier("org.anddev.android.testproject:drawable/bug",
null, null);
// or
int resID = getResources().getIdentifier("bug", "drawable", "org.anddev.android.testproject");
// or
int resID = getResources().getIdentifier("bug", "drawable", "org.anddev.android.testproject");
第一个参数其实
full_package:type/filename_without_ending是这种格式 然后其他的可以为null
Java代码
- int idFlag = getResources().getIdentifier(
- getPackageName() + ":drawable/flag",
- null, null);
- // 或是
- int idFlag = getResources().getIdentifier(
- "flag", "drawable", getPackageName());
int idFlag = getResources().getIdentifier(
getPackageName() + ":drawable/flag",
null, null);
// 或是
int idFlag = getResources().getIdentifier(
"flag", "drawable", getPackageName());
Java代码
- var Drawable[] dw = new Drawable[10];
- for (int i = 1; i <= 10; i++) {
- int id = getResources().getIdentifier(
- "flag" + i,
- "drawable", getPackageName());
- dw[i-1] = getResources().getDrawable(id);
- }
var Drawable[] dw = new Drawable[10];
for (int i = 1; i <= 10; i++) {
int id = getResources().getIdentifier(
"flag" + i,
"drawable", getPackageName());
dw[i-1] = getResources().getDrawable(id);
} 用反射发 可以得到 所有的资源Java代码
- private void
- _DumpAllResourceIDs(Class<?> classType)
- throws IllegalArgumentException {
- Field[] fIDs = classType.getFields();
- try {
- for (int i = 0; i < fIDs.length; i++) {
- Field fld = fIDs[i];
- int nID = fld.getInt(null);
- Log.d("dbg",
- classType.getSimpleName() + " " +
- i + ": " +
- fld.getName() + "=" +
- nID);
- }
- } catch (Exception e) {
- throw new IllegalArgumentException();
- }
- }
private void
_DumpAllResourceIDs(Class<?> classType)
throws IllegalArgumentException {
Field[] fIDs = classType.getFields();
try {
for (int i = 0; i < fIDs.length; i++) {
Field fld = fIDs[i];
int nID = fld.getInt(null);
Log.d("dbg",
classType.getSimpleName() + " " +
i + ": " +
fld.getName() + "=" +
nID);
}
} catch (Exception e) {
throw new IllegalArgumentException();
}
}
Java代码
- import java.lang.reflect.Field;
- ...
- _DumpAllResourceIDs(R.layout.class);
- _DumpAllResourceIDs(R.drawable.class);
import java.lang.reflect.Field; ... _DumpAllResourceIDs(R.layout.class); _DumpAllResourceIDs(R.drawable.class);结果
Java代码
- R$layout 0: main=2130903040
- R$layout 1: small_spinner_dropdown_item=2130903041
- R$drawable 0: icon=2130837504