1、Activity Fragment Activity一般先传递给FragmentActivity，通过FAct传给附属Fragment
2、Activity FragmentActivity 通过Intent传递 如果涉及加载模式传递参数的话，需要通过 onNewIntent(Intent intent) 获取intent， getIntent()已经被onNewIntent()拦截
3、Fragment Fragemt Fragment之间相互切换通过bundle，setArguments传递数据
4、FragmentActivity Fragment 通过接口传递数据，因为Arguments在一开始创建Fragment就必须传进去，要是再次设置报
java.lang.IllegalStateException: Fragment already active 异常12-19 10:28:01.393: E/AndroidRuntime(25224): java.lang.IllegalStateException: Fragment already active
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.support.v4.app.Fragment.setArguments(Fragment.java:530)
12-19 10:28:01.393: E/AndroidRuntime(25224): at com.pupuwang.sjzx.fragment.HomeFragment.setArguments(HomeFragment.java:198)
12-19 10:28:01.393: E/AndroidRuntime(25224): at com.pupuwang.sjzx.fragment.FragmentMainActivity.setFragmentIndicator(FragmentMainActivity.java:46)
12-19 10:28:01.393: E/AndroidRuntime(25224): at com.pupuwang.sjzx.fragment.FragmentMainActivity.onNewIntent(FragmentMainActivity.java:77)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.app.Instrumentation.callActivityOnNewIntent(Instrumentation.java:1156)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.app.ActivityThread.deliverNewIntents(ActivityThread.java:2454)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.app.ActivityThread.performNewIntents(ActivityThread.java:2467)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.app.ActivityThread.handleNewIntent(ActivityThread.java:2476)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.app.ActivityThread.access$1400(ActivityThread.java:157)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1412)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.os.Handler.dispatchMessage(Handler.java:99)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.os.Looper.loop(Looper.java:153)
12-19 10:28:01.393: E/AndroidRuntime(25224): at android.app.ActivityThread.main(ActivityThread.java:5326)
12-19 10:28:01.393: E/AndroidRuntime(25224): at java.lang.reflect.Method.invokeNative(Native Method)
12-19 10:28:01.393: E/AndroidRuntime(25224): at java.lang.reflect.Method.invoke(Method.java:511)
12-19 10:28:01.393: E/AndroidRuntime(25224): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:848)
12-19 10:28:01.393: E/AndroidRuntime(25224): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:615)
12-19 10:28:01.393: E/AndroidRuntime(25224): at dalvik.system.NativeStart.main(Native Method)
fragment之间参数传递public static HomeFragment newInstance(int index) {
HomeFragment hf = new HomeFragment();
Bundle bundle = new Bundle();
bundle.putInt("index", index);
hf.setArguments(bundle);
Log.e(TAG, "--------index------:" +index);
return hf;
}
public int getShownIndex() {
Bundle bundle = getArguments();
if(bundle==null){
return -1;
}else{
return bundle.getInt(IntentKeys.SHOP_INFO, 0);
}
}
接口回调传递参数
注意要在fragment中的此方法中转换下@Override
public void onAttachFragment(Fragment fragment) {
try {
if(fragment instanceof IBtnCallListener){
mbtnListener = (IBtnCallListener) fragment;
}else if(fragment instanceof IFragmentArguments){
mIFragArg = (IFragmentArguments)fragment;
}
} catch (Exception e) {
// TODO: handle exception
}
super.onAttachFragment(fragment);
}
通过自定义接口回调public interface IFragmentArguments {
public void setIArguments(Bundle bundle);
}
