Android 动态创建按钮的垂直滚动视图
在动态创建的按钮中添加滚动视图时遇到问题。以下是我的xml代码Android 动态创建按钮的垂直滚动视图,android,scroll,scrollview,Android,Scroll,Scrollview,在动态创建的按钮中添加滚动视图时遇到问题。以下是我的xml代码 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="fill_parent" andro
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="fill_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=".MainActivity" >
<LinearLayout
android:id="@+id/linear1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="27dp"
android:background="@drawable/custom_border"
android:orientation="vertical" >
<EditText
android:id="@+id/editText1"
android:layout_width="243dp"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignTop="@+id/linearLayout1"
android:layout_marginTop="28dp"
android:ems="10"
android:hint="@string/hinttextitem" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/editText1"
android:layout_alignParentRight="true"
android:layout_marginRight="26dp"
android:background="@drawable/button_shape"
android:onClick="newonClick"
android:text="click" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/linear1"
android:layout_centerHorizontal="true"
android:layout_marginTop="80dp"
android:id="@+id/dynamic"
android:background="@drawable/dynamic_border"
android:orientation="vertical" >
</LinearLayout>
</RelativeLayout>
这是我的java代码
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void newonClick(View V){
LinearLayout layout=(LinearLayout)findViewById(R.id.linear1);
LinearLayout dynamiclayout=(LinearLayout)findViewById(R.id.dynamic);
dynamiclayout.removeAllViews();
EditText edittext = (EditText) findViewById(R.id.editText1);
int x=Integer.valueOf(edittext.getText().toString());
for(int i=1;i<=x;i++)
{
Button addButton =new Button(this);
addButton.setText("Button"+i);
addButton.setId(i);
dynamiclayout.addView(addButton);
addButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Toast.makeText(getApplicationContext(),
"button is clicked"+v.getId(), 8000).show();
}
});
}
公共类MainActivity扩展活动{
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
公共void newonClick(视图五){
LinearLayout布局=(LinearLayout)findViewById(R.id.linear1);
LinearLayout dynamiclayout=(LinearLayout)findViewById(R.id.dynamic);
dynamicClayOut.removeAllViews();
EditText EditText=(EditText)findViewById(R.id.editText1);
int x=Integer.valueOf(edittext.getText().toString());
对于(int i=1;i请尝试以下操作:仅为LinearLayout放置滚动视图
<ScrollView
android:layout_width="wrap_content"
android:layout_below="@+id/linear1"
android:layout_height="wrap_content" >
<LinearLayout
android:id="@+id/dynamic"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:layout_marginTop="80dp"
android:background="@drawable/dynamic_border"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
请替换此代码:尝试使用,
在XML中
在Java中:
this.scrollView = (ScrollView) findViewById(R.id.scrollView1);
this.linearLayout = (LinearLayout) findViewById(R.id.dynamic);
this.linearLayout.setOrientation(LinearLayout.VERTICAL);
Button[] btn = new Button[10];
for (int i = 0; i < 10; i++) {
btn[i] = new Button(this);
btn[i].setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
btn[i].setText("This is the button" + i);
this.linearLayout.addView(btn[i]);
}
this.scrollView=(scrollView)findViewById(R.id.scrollView1);
this.linearLayout=(linearLayout)findViewById(R.id.dynamic);
此.linearLayout.setOrientation(linearLayout.VERTICAL);
按钮[]btn=新按钮[10];
对于(int i=0;i<10;i++){
btn[i]=新按钮(此按钮);
btn[i].setLayoutParams(新的LayoutParams(LayoutParams.FILL\u父级,LayoutParams.WRAP\u内容));
btn[i].setText(“这是按钮”+i);
此.linearLayout.addView(btn[i]);
}
您在哪里创建了scrollview?并且您没有从oncreate中调用newonClick(View v)方法:)谢谢大家..这对我有用..我需要的另一个帮助是如何在动态创建的按钮中添加gridview。现在我将按钮设置为垂直,我想将其显示为网格..使用网格视图而不是线性布局,并为网格功能维护一个适配器,您的动态按钮信息将传递给adaplter.@balaji.amndroid,你能告诉我如何将动态按钮信息传递给适配器吗?@ammu这是gridview和自定义适配器功能的简单示例,试试这个
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/linear1"
android:id="@+id/scrollView1">
<LinearLayout
android:id="@+id/dynamic"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:layout_marginTop="80dp"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
this.scrollView = (ScrollView) findViewById(R.id.scrollView1);
this.linearLayout = (LinearLayout) findViewById(R.id.dynamic);
this.linearLayout.setOrientation(LinearLayout.VERTICAL);
Button[] btn = new Button[10];
for (int i = 0; i < 10; i++) {
btn[i] = new Button(this);
btn[i].setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
btn[i].setText("This is the button" + i);
this.linearLayout.addView(btn[i]);
}