1、添加库
compile 'com.jakewharton:butterknife:7.0.1'
2、在Activity中使用
setContentView函数后面添加
ButterKnife.bind(this);
View Bind
@Bind(R.id.title) TextView title;
@Bind(R.id.subtitle) TextView subtitle;
@Bind(R.id.footer) TextView footer;
Resouce Bind
@BindString(R.string.title) String title;
@BindDrawable(R.drawable.graphic) Drawable graphic;
@BindColor(R.color.red) int red; // int or ColorStateList field
@BindDimen(R.dimen.spacer) Float spacer; // int (for pixel size) or float (for exact value) field
3、在Fragment中使用
public class FancyFragment extends Fragment {
@Bind(R.id.button1) Button button1;
@Bind(R.id.button2) Button button2;
@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fancy_fragment, container, false);
ButterKnife.bind(this, view);
// TODO Use fields...
return view;
}}
4、Adapter中使用
static class ViewHolder {
@Bind(R.id.title) TextView name;
@Bind(R.id.job_title) TextView jobTitle;
public ViewHolder(View view) {
ButterKnife.bind(this, view);
}
}
5、简单动作处理
@Bind({ R.id.first_name, R.id.middle_name, R.id.last_name })
List<EditText> nameViews;
The apply method allows you to act on all the views in a list at once.
ButterKnife.apply(nameViews, DISABLE);
ButterKnife.apply(nameViews, ENABLED, false);
Action and Setter interfaces allow specifying simple behavior.
static final ButterKnife.Action<View> DISABLE = new ButterKnife.Action<View>() {
@Override public void apply(View view, int index) {
view.setEnabled(false);
}};
static final ButterKnife.Setter<View, Boolean> ENABLED = new ButterKnife.Setter<View, Boolean>() {
@Override public void set(View view, Boolean value, int index) {
view.setEnabled(value);
}};
属性设置
ButterKnife.apply(nameViews, View.ALPHA, 0.0f);
6、动作监听绑定
@OnClick(R.id.submit)
public void submit(View view) {
// TODO submit data to server...}
@OnClick(R.id.submit)
public void submit() {
// TODO submit data to server...}
@OnClick(R.id.submit)
public void sayHi(Button button) {
button.setText("Hello!");}
@OnClick({ R.id.door1, R.id.door2, R.id.door3 })
public void pickDoor(DoorView door) {
if (door.hasPrizeBehind()) {
Toast.makeText(this, "You win!", LENGTH_SHORT).show();
} else {
Toast.makeText(this, "Try again", LENGTH_SHORT).show();
}}
public class FancyButton extends Button {
@OnClick
public void onClick() {
// TODO do something!
}}
7、绑定重置
public class FancyFragment extends Fragment {
@Bind(R.id.button1) Button button1;
@Bind(R.id.button2) Button button2;
@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fancy_fragment, container, false);
ButterKnife.bind(this, view);
// TODO Use fields...
return view;
}
@Override public void onDestroyView() {
super.onDestroyView();
ButterKnife.unbind(this);
}}
8、使用 @Nullable 设置可选绑定
@Nullable @Bind(R.id.might_not_be_there) TextView mightNotBeThere;
@Nullable @OnClick(R.id.maybe_missing) void onMaybeMissingClicked() {
// TODO ...}
9、多个方法进行监听绑定
@OnItemSelected(R.id.list_view)void onItemSelected(int position) {
// TODO ...}
@OnItemSelected(value = R.id.maybe_missing, callback = NOTHING_SELECTED)void onNothingSelected() {
// TODO ...}
10、findById方法
View view = LayoutInflater.from(context).inflate(R.layout.thing, null);
TextView firstName = ButterKnife.findById(view, R.id.first_name);
TextView lastName = ButterKnife.findById(view, R.id.last_name);
ImageView photo = ButterKnife.findById(view, R.id.photo);
转自:http://jakewharton.github.io/butterknife/