好的,我是 android dev 和 Java 的新手,所以我在点击方法时遇到了问题,这是我的代码。我知道我必须接近,提前谢谢。我想要我的按钮做的就是,当它在手机上单击以将布局 View 从 main.xml 切换到 xx.xml
package my.project;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class ExperiencerlActivity extends Activity {
/** Called when the activ`enter code here`ity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
}
});
}
}
这是我的按钮代码
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/linearLayout1"
android:layout_centerHorizontal="true"
android:layout_marginBottom="56dp"
android:onClick="setLogin"
android:text="Login" />
最佳答案
If you write like this in Button tag in xml file : android:onClick="setLogin" then
这样做:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/btn"
android:onClick="onClickBtn" />
</LinearLayout>
在代码部分:
public class StartUpActivity extends Activity
{
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public void onClickBtn(View v)
{
Toast.makeText(this, "Clicked on Button", Toast.LENGTH_LONG).show();
}
}
而且不需要这一切:
Button button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
}
});
检查一次;
关于java - Android 按钮 Onclick,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10231309/