Android 在布局中动态添加滚动视图，在滚动视图中动态添加线性布局
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Dynamically add scrollview in layout and linearlayout in scrollview
提问by SleepNot
How do I dynamically add a scrollview in my layout? and once I get that scrollview added I want to add a linearlayout inside it so I can now add controls in that linearlayout?
如何在布局中动态添加滚动视图？一旦我添加了滚动视图，我想在其中添加一个线性布局，以便我现在可以在该线性布局中添加控件？
采纳答案by Youddh
回答by Balaji
I hope it will helpful to you.
我希望它会对你有所帮助。
Try this Code...
试试这个代码...
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
RelativeLayout rl=(RelativeLayout)findViewById(R.id.rl);
ScrollView sv = new ScrollView(this);
sv.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT));
LinearLayout ll = new LinearLayout(this);
ll.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
ll.setOrientation(1);
sv.addView(ll);
for(int i = 0; i < 20; i++)
{
Button b = new Button(this);
b.setText("Button "+i);
ll.addView(b);
}
rl.addView(sv);
/* If you want to set entire layout as dynamically, then remove below lines in program :
* setContentView(R.layout.activity_main);
* RelativeLayout rl=(RelativeLayout)findViewById(R.id.rl);
* rl.addView(sv);
*
* And Add below line :
* this.setContentView(sv);
*/
}
回答by nam_ph
try this it will work :
试试这个它会起作用：
TextView tv = new TextView(this);
tv.setText(msg);
tv.setMovementMethod(new ScrollingMovementMethod());
setContentView(tv);
回答by Yash
You can wrap your widget inside a ScrollView. Here's a simple example:
您可以将小部件包装在 ScrollView 中。这是一个简单的例子：
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/txt"/>
</LinearLayout>
</ScrollView>
If you want to do it in code:
如果你想在代码中做到这一点：
ScrollView sv = new ScrollView(this);
//Add your widget as a child of the ScrollView.
sv.addView(wView);
