我有Fragment并希望将数据发送到Viewpager。我尝试使用Bundle，但不能工作。
NewRadioFragment - pass data - ＆gt; ViewPagerActivity（片段PlayRadio和片段BlogContent）
NewRadioFragment有一些数据，我想发送到PlayRadio，从Playradio发送继续到BlogContent。
如果你知道解决方案。请帮助我 ！ 谢谢大家。
我的代码在这里：
公共类NewRadioFragment扩展了Fragment
btnShowMore.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (item.getLink_play() != null) {
Toast.makeText(mContext, item.getLink_play(),
Toast.LENGTH_SHORT).show();
Intent intent = new Intent(mContext,
ViewPagerActivity.class);
Bundle bundle = new Bundle();
bundle.putString(Constant.STRING_KEY, Desciption);
intent.putExtras(bundle);
startActivity(intent);
} else {
Toast.makeText(mContext, "NULL", Toast.LENGTH_SHORT).show();
}
}
});
ViewPagerActivity扩展了FragmentActivity
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.viewpager_main_activity);
setUpView();
}
公共课PlayBlog扩展片段
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.playradio_layout, container,
false);
mContext = container.getContext();
final Animation anim = AnimationUtils.loadAnimation(mContext,
R.anim.rotate);
Desciption = getArguments().getString(Constant.STRING_KEY);
Log.i("", Constant.TAG + Desciption);
ImageView splash = (ImageView) rootView.findViewById(R.id.base);
TextView tvDesciption = (TextView) rootView
.findViewById(R.id.tv_Marquee);
tvDesciption.setText(Desciption);
splash.startAnimation(anim);
return rootView;
}
更新代码
我编辑了我的代码，但是NullPoiterException 公共类ViewPagerActivity扩展了FragmentActivity
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.viewpager_main_activity);
Intent intent = getIntent();
Bundle args = intent.getExtras();
Fragment playRadio = new PlayBlog();
playRadio.setArguments(args);
FragmentTransaction transaction = getSupportFragmentManager()
.beginTransaction();
transaction.replace(R.id.pager, playRadio);
transaction.commit();
setUpView();
}
公共课PlayBlog扩展片段
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.playradio_layout, container,
false);
mContext = container.getContext();
final Animation anim = AnimationUtils.loadAnimation(mContext,
R.anim.rotate);
Desciption = getArguments().getString(Constant.STRING_KEY);
Log.i("", Constant.TAG + Desciption);
ImageView splash = (ImageView) rootView.findViewById(R.id.base);
TextView tvDesciption = (TextView) rootView
.findViewById(R.id.tv_Marquee);
tvDesciption.setText(Desciption);
splash.startAnimation(anim);
return rootView;
}
更新2
Logcat错误
02-06 06:14:39.980: E/AndroidRuntime(1790): FATAL EXCEPTION: main
02-06 06:14:39.980: E/AndroidRuntime(1790): java.lang.NullPointerException
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.tadev.blogradio.main.PlayBlog.onCreateView(PlayBlog.java:36)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1478)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:927)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1460)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:472)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.view.ViewPager.populate(ViewPager.java:1068)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.view.ViewPager.populate(ViewPager.java:914)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1436)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.View.measure(View.java:15518)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:681)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.View.measure(View.java:15518)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.View.measure(View.java:15518)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.widget.LinearLayout.measureVertical(LinearLayout.java:847)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.View.measure(View.java:15518)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
02-06 06:14:39.980: E/AndroidRuntime(1790): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2176)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.View.measure(View.java:15518)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1874)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1089)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1265)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.Choreographer.doCallbacks(Choreographer.java:562)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.Choreographer.doFrame(Choreographer.java:532)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.os.Handler.handleCallback(Handler.java:725)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.os.Handler.dispatchMessage(Handler.java:92)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.os.Looper.loop(Looper.java:137)
02-06 06:14:39.980: E/AndroidRuntime(1790): at android.app.ActivityThread.main(ActivityThread.java:5041)
02-06 06:14:39.980: E/AndroidRuntime(1790): at java.lang.reflect.Method.invokeNative(Native Method)
02-06 06:14:39.980: E/AndroidRuntime(1790): at java.lang.reflect.Method.invoke(Method.java:511)
02-06 06:14:39.980: E/AndroidRuntime(1790): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
02-06 06:14:39.980: E/AndroidRuntime(1790): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
02-06 06:14:39.980: E/AndroidRuntime(1790): at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：1)
要将数据从NewRadioFragment传递到PlayBlog，您首先需要使用ViewPagerActivity将捆绑包发送到putExtras，然后针对setArguments方法调用PlayBlog您在add or replcase活动中调用PlayBlog片段的ViewPagerActivity方法。
在btnShowMore按钮上单击发送意图中的Bundle：
Intent intent = new Intent(mContext,
ViewPagerActivity.class);
Bundle bundle = new Bundle();
bundle.putString(Constant.STRING_KEY, Desciption);
intent.putExtras(bundle);
startActivity(intent);
在ViewPagerActivity使用getIntent获取Bundle并调用setArguments方法将包发送到片段：
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.viewpager_main_activity);
Intent intent=getIntent();
Bundle bundle = intent.getExtras();
现在将bundle捆绑包传递给PlayBlog碎片
答案 1 :(得分：1)
您必须使用interface将数据发送到其容器
此处（最后回复）： Passing data between a fragment and its container activity
编辑：我需要更多代码来向您发送好的示例，并了解您的片段启动寻呼机的原因
NewRadioFragment中的声明了一个像这样的接口
// Container Activity must implement this interface
public interface Onpassdata // name not fixed
{
public void start(String T, int ID);
}
声明一个成员：private Onpassdata mCallback;
@Override
public void onAttach(Activity activity)
{
super.onAttach(activity);
// This makes sure that the container activity has implemented
// the callback interface. If not, it throws an exception
try {
mCallback = (Onpassdata) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement Onpassdata");
}
}
btnShowMore.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (item.getLink_play() != null) {
Toast.makeText(mContext, item.getLink_play(),
Toast.LENGTH_SHORT).show();
start(Desciption, id);
} else {
Toast.makeText(mContext, "NULL", Toast.LENGTH_SHORT).show();
}
}
});
in pour ViewPagerActivity
public ViewPagerActivity extends FragmentActivity
implements NewRadioFragment.Onpassdata
{
public void start(String T, int ID) {
// do something whith values
// and you can Start your BlogContent fragment here
}