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我正在嘗試Android的數據綁定。我的應用程序調用API並將結果存儲在對象模型中。我想在活動中顯示模型的內容。我的API調用是通過點擊一個按鈕來完成的。代碼如下：Android數據綁定
public class MainActivity extends AppCompatActivity {
private static final String apiKey = "somekey";
APIInterface apiService = null;
EditText editText;
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
apiService = APIClient.getClient().create(APIInterface.class);
button = (Button) findViewById(R.id.button);
editText = (EditText) findViewById(R.id.edit_text);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d("Result", "Inside onclick");
String text = editText.getText().toString();
Call<APIResultModel> call = apiService.getSearchResult(text, apiKey);
Log.d("Result", "Before enqueue");
call.enqueue(new Callback<APIResultModel>() {
@Override
public void onResponse(Call<APIResultModel> call, Response<APIResultModel> response) {
if (response.body().results != null) {
List<ProductModel> productModelList = response.body().results;
if (productModelList != null && productModelList.size() > 0) {
final ProductModel productModel = productModelList.get(0);
ActivityMainBinding binding = DataBindingUtil.setContentView(MainActivity.this, R.layout.activity_main);
binding.setProduct(productModel);
}
}
}
@Override
public void onFailure(Call<APIResultModel> call, Throwable t) {
}
});
Log.d("Result", "After enqueue")
}
});
}
}
的XML文件的內容如下：
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<data>
<variable
name="product"
type="com.mvvm.prakh.mvvmarchitecture.models.ProductModel" />
</data>
<RelativeLayout
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.mvvm.prakh.mvvmarchitecture.MainActivity">
<EditText
android:id="@+id/edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/edit_text"
android:layout_marginTop="8dp"
android:text="Submit" />
<TextView
android:id="@+id/brand_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/button"
android:layout_marginTop="8dp"
android:text="@{product.brandName}"
android:hint="Brand name comes here" />
<TextView
android:id="@+id/product_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/brand_name"
android:layout_marginTop="8dp"
android:text="@{product.productName}"
android:hint="Product name comes here" />
</RelativeLayout>
我的模型如下：
package com.mvvm.prakh.mvvmarchitecture.models;
import android.databinding.BaseObservable;
import android.databinding.Bindable;
import com.android.databinding.library.baseAdapters.BR;
import com.google.gson.annotations.SerializedName;
public class ProductModel extends BaseObservable{
@SerializedName("brandName")
public String brandName;
@SerializedName("productName")
public String productName;
public ProductModel(String brandName, String productName) {
this.brandName = brandName;
this.productName = productName;
}
@Bindable
public String getBrandName() {
return brandName;
}
public void setBrandName(String brandName) {
this.brandName = brandName;
notifyPropertyChanged(BR.brandName);
}
@Bindable
public String getProductName() {
return productName;
}
public void setProductName(String productName) {
this.productName = productName;
notifyPropertyChanged(BR.productName);
}
}
我已經把在onClick()內部的Log.d語句，在第一次單擊它時給出了輸出，但是爲了後續的clic ks我沒有得到輸出。在我看來，在我使用數據綁定填充字段後，點擊被禁用。
logcat的輸出：
02-04 14:53:30.040 16778-16778/com.mvvm.prakh.mvvmarchitecture D/Result: Inside on click
02-04 14:53:30.135 16778-16778/com.mvvm.prakh.mvvmarchitecture D/Result: Before enqueue
02-04 14:53:30.151 16778-16778/com.mvvm.prakh.mvvmarchitecture D/Result: After enqueue
所以單擊按鈕時我可以看到數據被填充作爲API的結果，但在點擊該按鈕進一步變得反應遲鈍。有什麼我在這裏失蹤，重置條件，以再次點擊按鈕？
你能分享亞行日誌？ –
@SungMinLee添加了相同的內容。 –
只需在'onClick'方法內添加一些'Log.d'內容（當它開始和結束時）並觀看'logcat' – pskink