使用“getContext（）。getAssets（）”在适配器类中添加新字体，导致我的应用程序崩溃
当我删除两行以自定义字体时，我的应用程序运行正常。但是，当我包含这些行时，我的应用程序崩溃了。有没有其他方法来添加自定义字体？我在这里做错了什么？
public class CustomAdapter extends ArrayAdapter<String> {
int images[];
public CustomAdapter(@NonNull Context context, String[] names, int pics[]) {
super(context, R.layout.face_list, names);
this.images = pics;
}
@NonNull
@Override
public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
LayoutInflater myInflater = LayoutInflater.from(getContext());
View listDisplay = myInflater.inflate(R.layout.face_list, parent, false);
ImageView face = listDisplay.findViewById(R.id.face);
TextView name = listDisplay.findViewById(R.id.name);
Typeface chawpFont = Typeface.createFromAsset(listDisplay.getContext().getAssets(),"chawp.tff");
name.setTypeface(chawpFont);
String participant_name = (String) getItem(position);
int participant_pic = images[position];
face.setImageResource(participant_pic);
name.setText(participant_name);
return listDisplay;
}
}
错误日志：
09-27 14:43:21.029 14524-14731/com.mohdfaheemkhan.wellgrounded D/mali_winsys: new_window_surface returns 0x3000
09-27 14:43:21.047 14524-14524/com.mohdfaheemkhan.wellgrounded D/AndroidRuntime: Shutting down VM
09-27 14:43:21.049 14524-14524/com.mohdfaheemkhan.wellgrounded E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.mohdfaheemkhan.wellgrounded, PID: 14524
java.lang.RuntimeException: Font asset not found chawp.tff
at android.graphics.Typeface.createFromAsset(Typeface.java:190)
at com.mohdfaheemkhan.wellgrounded.CustomAdapter.getView(CustomAdapter.java:41)
at android.widget.AbsListView.obtainView(AbsListView.java:2474)
at android.widget.ListView.makeAndAddView(ListView.java:1920)
at android.widget.ListView.fillDown(ListView.java:717)
at android.widget.ListView.fillFromTop(ListView.java:778)
at android.widget.ListView.layoutChildren(ListView.java:1715)
at android.widget.AbsListView.onLayout(AbsListView.java:2235)
at android.view.View.layout(View.java:16953)
at android.view.ViewGroup.layout(ViewGroup.java:5579)
at android.support.constraint.ConstraintLayout.onLayout(ConstraintLayout.java:1197)
at android.view.View.layout(View.java:16953)
at android.view.ViewGroup.layout(ViewGroup.java:5579)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at android.view.View.layout(View.java:16953)
at android.view.ViewGroup.layout(ViewGroup.java:5579)
at android.support.v7.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:434)
at android.view.View.layout(View.java:16953)
at android.view.ViewGroup.layout(ViewGroup.java:5579)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at android.view.View.layout(View.java:16953)
at android.view.ViewGroup.layout(ViewGroup.java:5579)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:2001)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1844)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1753)
at android.view.View.layout(View.java:16953)
at android.view.ViewGroup.layout(ViewGroup.java:5579)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:396)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at com.android.internal.policy.PhoneWindow$DecorView.onLayout(PhoneWindow.java:2785)
at android.view.View.layout(View.java:16953)
at android.view.ViewGroup.layout(ViewGroup.java:5579)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2552)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2255)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1321)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6708)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:894)
at android.view.Choreographer.doCallbacks(Choreographer.java:696)
at android.view.Choreographer.doFrame(Choreographer.java:631)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:880)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:207)
at android.app.ActivityThread.main(ActivityThread.java:5728)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
09-27 14:43:22.865 14524-14524/com.mohdfaheemkhan.wellgrounded I/Process: Sending signal. PID: 14524 SIG: 9
答案 0 :(得分：1)
而不是获取视图上下文从文本视图本身获取上下文
if(name.getContext()!=null){
Typeface chawpFont = Typeface.createFromAsset(name.getContext().getAssets(),"chawp.tff");
name.setTypeface(chawpFont);
}
此外，您可以尝试使用parent.getContext（），这是获取上下文的更好方法
答案 1 :(得分：0)
在您的代码中尝试此操作。
public class CustomAdapter extends ArrayAdapter {
int images[];
private Context mContext;
public CustomAdapter(@NonNull Context context, String[] names, int pics[]) {
super(context, R.layout.face_list, names);
this.images = pics;
// add here
this.mContext = context;
}
@NonNull
@Override
public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
// edited here , change to mContext
LayoutInflater myInflater = LayoutInflater.from(mContext);
View listDisplay = myInflater.inflate(R.layout.face_list, parent, false);
ImageView face = listDisplay.findViewById(R.id.face);
TextView name = listDisplay.findViewById(R.id.name);
// edited here , change to mContext
Typeface chawpFont = Typeface.createFromAsset(mContext.getAssets(), "chawp.tff");
name.setTypeface(chawpFont);
String participant_name = (String) getItem(position);
int participant_pic = images[position];
face.setImageResource(participant_pic);
name.setText(participant_name);
return listDisplay;
}
}
修改
在assets目录中，创建一个新的fonts目录，然后向其添加chawp.tff。
字体chawpFont = Typeface.createFromAsset（mContext.getAssets（），“fonts / chawp.tff”）;
更改为fonts/chawp.tff