我刚刚创建了一个Activity来显示一些产品信息,而这个Activity有一个Collapsing工具栏。我想在活动开始后立即加载Picasso的图像。
以下是当前代码:
public class ProductActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_product);
Product p = (Product) getIntent().getExtras().getSerializable("product");
setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setTitle(p.getProductName());
TextView name = (TextView) findViewById(R.id.product_name);
TextView type = (TextView) findViewById(R.id.product_type);
TextView description = (TextView) findViewById(R.id.product_description);
TextView ingredients = (TextView) findViewById(R.id.product_ingredients);
TextView price = (TextView) findViewById(R.id.product_price);
ImageView thumbnail = (ImageView) findViewById(R.id.product_thumbnail);
name.setText(p.getProductName());
type.setText(p.getProductType().getDisplayName());
description.setText(p.getProductDescription());
ingredients.setText("Non disponible");
price.setText(p.getProductPrice().length>1 ? "À partir de "+p.getProductPrice()[0].toString()+"€" : p.getProductPrice()[0].toString()+"€");
Picasso.with(this).load(p.getProductThumbnailURL()).fit().into(thumbnail);
Picasso.with(this).load(p.getProductThumbnailURL()).fit().into((ImageView)findViewById(R.id.test), new Callback() {
@Override
public void onSuccess() {
}
@Override
public void onError() {
Toast.makeText(ProductActivity.this, "Impossible de charger l'image !", Toast.LENGTH_SHORT).show();
}
});
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getItemId()==android.R.id.home)finish();
return super.onOptionsItemSelected(item);
}
}
这是一个活动的屏幕(不要处理设计xD)
有什么想法吗? :P
答案 0 :(得分:0)
以下是ProductActivity的XML文件:
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.slama.hotpizza77.ProductActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="250dp"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">
<ImageView
android:id="@+id/product_thumbnail"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax"
android:contentDescription="@string/product_thumbnail_string" />
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlwaysCollapsed"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
app:layoutManager="LinearLayoutManager"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingTop="0dp">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="16dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="16dp">
<TextView
android:id="@+id/product_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="product_name"
style="@style/TextAppearance.AppCompat.Large"
tools:ignore="HardcodedText" />
<TextView
android:id="@+id/product_type"
style="@style/TextAppearance.AppCompat.Medium"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="product_type"
android:textAppearance="@style/TextAppearance.AppCompat.Button"
tools:ignore="HardcodedText" />
<TextView
style="@style/TextAppearance.AppCompat.Body1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:text="Description :"
android:textSize="18sp"
tools:ignore="HardcodedText" />
<TextView
android:id="@+id/product_description"
style="@style/TextAppearance.AppCompat.Small"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="product_description"
android:textSize="16sp"
tools:ignore="HardcodedText" />
<TextView
style="@style/TextAppearance.AppCompat.Body1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:text="Ingrédients :"
android:textSize="18sp"
tools:ignore="HardcodedText" />
<TextView
android:id="@+id/product_ingredients"
style="@style/TextAppearance.AppCompat.Small"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="product_ingredients"
android:textSize="16sp"
tools:ignore="HardcodedText" />
<LinearLayout
android:layout_marginTop="16dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:src="@drawable/ic_product_pork"/>
<TextView
android:layout_marginLeft="8dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Contient de la viande issue de porc !"
style="@style/TextAppearance.AppCompat.Body2"/>
</LinearLayout>
<LinearLayout
android:layout_marginTop="8dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:src="@drawable/ic_product_notforkid"/>
<TextView
android:layout_marginLeft="8dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Ne convient pas aux enfants !"
style="@style/TextAppearance.AppCompat.Body2"/>
</LinearLayout>
<TextView
android:id="@+id/product_price"
android:layout_marginTop="16dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="product_price"
style="@style/Widget.AppCompat.Button.Colored"
tools:ignore="HardcodedText" />
<ImageView
android:id="@+id/test"
android:layout_width="match_parent"
android:layout_height="200dp"/>
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
答案 1 :(得分:0)
而不是product_thumbnail的wrap_content ImageView高度使用match_parent或固定大小。
希望这有帮助