我知道类似的问题已经有答案了，但是我似乎已经按照教程和其他帖子的建议去做了，但还是出现了Inflator错误。不确定我做错了什么，请检查一下代码。非常感谢。
编辑：我在一个activity中有两个fragment。一个fragment中有一个按钮，另一个fragment中有一个文本视图。我正在尝试理解fragment的工作方式，所以我自己编写了这段代码，读取了文档。当一个fragment中的按钮被触发时，它会向activity中的另一个fragment发送一个值。我无法让fragment加载布局。
MainActivity.java
import com.transport.mbtalocpro.PredictedTimeFragment.ButtonClickListener;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
public class MainActivity extends FragmentActivity implements ButtonClickListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public void sendCounter(int count) {
TestFrag testF = (TestFrag) getSupportFragmentManager().findFragmentById(R.id.bottomHalf);
if(testF != null) testF.setCounter(String.valueOf(count));
}
}
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.InflateException;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
public class PredictedTimeFragment extends Fragment {
ButtonClickListener bListener;
public interface ButtonClickListener {
public void sendCounter(int count);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
try {
View view = inflater.inflate(R.layout.prediction_time, container, false);
Button button = (Button) view.findViewById(R.id.test);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
test(v);
}
});
} catch(InflateException e) {
e.printStackTrace();
System.out.println("Predicted Time Fragment");
}
return super.onCreateView(inflater, container, savedInstanceState);
}
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
bListener = (ButtonClickListener) activity;
} catch (ClassCastException e) {
System.out.println("must implemenet Listener");
}
}
public void test(View view) {
bListener.sendCounter(23);
}
}
TestFrag.java
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.InflateException;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class TestFrag extends Fragment {
@Override
public View onCreateView(LayoutInflater inflator, ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflator, container, savedInstanceState);
try {
View view = inflator.inflate(R.layout.test_frag, container, false);
} catch(InflateException e) {
e.printStackTrace();
System.out.println("Test Fragment");
}
return super.onCreateView(inflator, container, savedInstanceState);
}
public void setCounter(String textS) {
TextView text = (TextView) getView().findViewById(R.id.test1);
text.setText((String) textS);
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<fragment
android:id="@+id/topHalf"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="0.5"
android:name="com.transport.mbtalocpro.PredictedTimeFragment"/>
<fragment
android:id="@+id/bottomHalf"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="0.5"
android:name ="com.transport.mbtalocpro.TestFrag"/>
</LinearLayout>
预测时间.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="@+id/test"
android:text="Test"
android:layout_width="fill_parent"
android:layout_height="30dp"
/>
</LinearLayout>
test_frag.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/test1"
android:layout_width="fill_parent"
android:layout_height="40dp"/>
</LinearLayout>
我希望能够支持早期版本，因此我认为我已经导入了所有支持库。