我正在更新一个应用程序。在新程序中,我打算使用视图绑定,因为 butterknife 库不起作用。我的代码如下。我该如何使用新方法? 前面的代码使用了 butterknife 库。通过将程序更新到新版本,将无法使用该库并同步它。经过一番搜索,我发现更好的解决方案是使用方法二。但我在重写代码时遇到了问题。如果可能,指导进行必要的更改。 谢谢
XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="15dp"
app:cardCornerRadius="10dp"
app:cardElevation="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical"
android:padding="10dp"
>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/baseDialog_imgDialog"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_alignParentRight="true"
/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@id/baseDialog_imgDialog"
android:layout_toLeftOf="@id/baseDialog_imgDialog"
android:orientation="vertical">
<TextView
android:id="@+id/baseDialog_tvTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="right"
android:textColor="@android:color/black"
android:textSize="18sp" />
<TextView
android:id="@+id/baseDialog_tvDescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="@color/black"
android:textSize="16sp" />
</LinearLayout>
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:gravity="center"
android:weightSum="2.5">
<TextView
android:id="@+id/baseDialog_btnNo"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:layout_weight="1"
android:background="@drawable/bkg_blue_curved"
android:gravity="center"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:textColor="@android:color/white"
android:textSize="18sp" />
<TextView
android:id="@+id/baseDialog_btnYes"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:background="@drawable/strocked_simple"
android:gravity="center"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:textColor="@color/black"
android:textSize="18sp" />
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
</RelativeLayout>
Java 类:
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import com.example.R;
import com.example.interfase.MyClickHolder;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
public class TowOptionDialog extends BaseDialog {
private String noButtonText, yesButtonText, titleText, bodyText;
private Drawable imageLink;
MyClickHolder myClickHolde;
public void setMyClickHolde(MyClickHolder myClickHolde) {
this.myClickHolde = myClickHolde;
}
@BindView(R.id.baseDialog_tvTitle)
TextView tvTitle;
@BindView(R.id.baseDialog_tvDescription)
TextView tvDescription;
@BindView(R.id.baseDialog_btnNo)
TextView btnNo;
@BindView(R.id.baseDialog_btnYes)
TextView btnYes;
@BindView(R.id.baseDialog_imgDialog)
ImageView imgBaseDialog;
@OnClick(R.id.baseDialog_btnYes)
void yesButton() {
myClickHolde.onClicked(null, 1);
dismiss();
}
@OnClick(R.id.baseDialog_btnNo)
void noButton() {
dismiss();
}
public TowOptionDialog(@NonNull Context context,
String noButtonText,
String yesButtonText,
String titleText,
String bodyText,
Drawable imageLink) {
super(context);
this.noButtonText = noButtonText;
this.yesButtonText = yesButtonText;
this.titleText = titleText;
this.bodyText = bodyText;
this.imageLink = imageLink;
}
public TowOptionDialog(@NonNull Context context,
String titleText,
String bodyText
) {
super(context);
this.noButtonText = "No";
this.yesButtonText = "Yes";
this.titleText = titleText;
this.bodyText = bodyText;
this.imageLink = null;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dialog_two_button);
ButterKnife.bind(this);
tvTitle.setText(titleText);
tvDescription.setText(bodyText);
imgBaseDialog.setImageDrawable(imageLink);
imgBaseDialog.setVisibility(imageLink == null
? View.GONE : View.VISIBLE
);
btnYes.setText(yesButtonText);
btnNo.setText(noButtonText);
}
首先删除现有的 Butterknife 库并将 viewBinding 添加到您的 build.gradle 中:
android {
...
viewBinding {
enabled = true
}
}
然后你必须设置你的根视图, 创建一个像这样的全局变量:
private ActivityMainBinding binding
例如,如果我使用 MainActivity viewBinding 自动生成类似“ActivityMainBinding”的内容,那么您可以在 onCreate 函数中初始化此变量。
private ActivityMainBinding binding;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = ActivityMainBinding.inflate(getLayoutInflater());
setContentView(binding.getRoot());
// Now you can access your views using the binding object
binding.tvHeader.setText("Hello, ViewBinding!");
}
初始化后,您可以使用各自的 ID 调用任何小部件,例如,我使用这样的绑定来调用我的 TextView 'tvHeader'
binding.tvHeader.setText("Hello, ViewBinding!");