求解答data binding框架中的BindingAdapter使用问题
布局代码：
javaBean代码：
public class User {
public ObservableField name = new ObservableField();
public ObservableField newName = new ObservableField();
public void onClickName(View view) {
Log.i("User", name.get());
}
@BindingAdapter({"newName"})
public static void setNewName(TextView tv, ObservableField oName) {
tv.setText(oName.get());
}
}
数据绑定：
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_main);
ActivityMainBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
final User user = new User();
user.name.set("zhangsan");
binding.setUser(user);
new Thread(new Runnable() {
@Override
public void run() {
SystemClock.sleep(2000);
user.name.set("lisi");
user.newName.set("wangwu");
}
}).start();
}
}
求问为什么会报错：
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> java.lang.RuntimeException: Found data binding errors.
****/ data binding error ****msg:Cannot find the setter for attribute 'app:newName' with parameter type java.lang.String on android.widget.TextView.
file:F:\Android\MVVMDemo\app\src\main\res\layout\activity_main.xml
loc:24:28 - 24:39
****\ data binding error **** |
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类型错误
@BindingAdapter({"newName"})
public static void setNewName(TextView tv,String oName) {
tv.setText(oName);
} |
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