我已经制作了一个应用程序，我将动态地将图像和文本添加到应用程序中，我正在使用
1.相对布局（主要布局）
1.（a）线性布局（包含所有1.（b）值的线性布局）
1.（b）线性布局（包含图像和文本的d布局），每个（1.（b））布局包含一个图像和一个文本
现在，因为我在机顶盒（带远程）上运行这个应用程序与android，它连接到智能电视,,,,,所以我必须使用机顶盒提供的遥控器控制我的应用程序。
所以我想要的是当应用程序加载时，焦点将放在第一个（（1.（b）线性布局））上，即在第一对图像和文本上。
已经完成： - 我使用了requestFocus()但没有用
任何帮助将非常感谢提前欢呼!!!!!!!
the code snippet is as follows:-
activity
LinearLayout lm = (LinearLayout) findViewById(R.id.linearMain1);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
75, 98);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
params.setMargins(0, 25, 0, 0);
RelativeLayout.LayoutParams paramrelative = new RelativeLayout.LayoutParams(
170, 158);
paramrelative.setMargins(2, 0, 0, 0);
RelativeLayout.LayoutParams p = new RelativeLayout.LayoutParams(180,
ViewGroup.LayoutParams.WRAP_CONTENT);
p.setMargins(2,0, 0, 0);
//Create four
for(int j= 0;j<=count-1;j++)
{
// Create LinearLayout
ScrollView sv = new ScrollView(this);
final RelativeLayout ll = new RelativeLayout(this);
ll.setBackgroundResource(R.drawable.app_bg);
ll.setLayoutParams(paramrelative);
ll.setFocusableInTouchMode(true);
ll.setClickable(true);
// final String url= separated[j+1];
// Create Button
final Button img = new Button(this);
final TextView tv = new TextView(this);
// Give button an ID
img.setId(j+1);
int s=img.getId();
p.addRule(RelativeLayout.BELOW, s);
tv.setLayoutParams(p);
tv.setGravity(Gravity.CENTER);
//File sdCardRoot = Environment.getExternalStorageDirectory();
// File sdcardPath = new File(Environment.getExternalStorageDirectory()
// .getPath() + "/CATEGORIES");
String filename=finalname[j];
File myDir = new File(sdcardPath,filename);
// File myDir = new File(sdcardPath, "CATEGORIES_hotelinfo.png");
String m1 = myDir.getPath();
Resources res = getResources();
Bitmap bitmap = BitmapFactory.decodeFile(m1);
BitmapDrawable bd = new BitmapDrawable(res, bitmap);
img.setBackgroundDrawable(Drawable.createFromPath(m1.toString()));
//2ndaugust2014 tv.setText(finalname[j]);
int s1= finalname[j].indexOf(".");
final String finalname1=finalname[j].substring(0,s1);
tv.setText(finalname1);
img.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
String newPath=newPath1+finalname1;
File sdcardPath = new File(Environment.getExternalStorageDirectory()
.getPath() +newPath);
new CountDownTimer(2000,1000) {
public void onTick(long millisUntilFinished) {
ll.setBackgroundResource(R.drawable.hover_btn_d); //This is when you click on each tick it came here after 1000 millisecond
}
public void onFinish() {
ll.setBackgroundResource(R.drawable.app_bg);
}
}.start();
// if the directory does not exist, create it
if (!sdcardPath.exists())
{
Toast.makeText(getApplicationContext(),
"redirecting to www."+finalname1+".com",
Toast.LENGTH_SHORT).show();
}
else
{ Intent intent = new Intent(Second60grid.this,Second60grid.class);
// startActivity(intent);
// i.setClassName(packageName, activitylast);
Toast.makeText(getApplicationContext(),
"name" + finalname1,
Toast.LENGTH_SHORT).show();
intent.putExtra("nameoffile",newPath+"/");
startActivity(intent);
}
}
});
// set the layoutParams on the button
img.setLayoutParams(params);
//Add button to LinearLayout
// setContentView(sv);
ll.addView(img);
ll.addView(tv);
if(j==0)
{
ll.requestFocus();
}
//Add button to LinearLayout defined in XML
lm.addView(ll);
}
和xml文件如下：-----
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/bg">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="200dip"
android:id="@+id/rl1"
>
<TextView
android:id="@+id/TEXT0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FF0000"
android:text="CATEGORIES" />
<LinearLayout
android:id="@+id/linearMain1"
android:layout_below="@+id/TEXT0"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000">
</LinearLayout>
<LinearLayout
android:id="@+id/linearMain2"
android:layout_below="@+id/linearMain1"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000">
</LinearLayout>
<LinearLayout
android:layout_below="@+id/linearMain2"
android:orientation="horizontal"
android:id="@+id/linearMain3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000"
>
</LinearLayout>
<LinearLayout
android:layout_below="@+id/linearMain3"
android:orientation="horizontal"
android:id="@+id/linearMain4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000"
> </LinearLayout>
<LinearLayout
android:layout_below="@+id/linearMain4"
android:orientation="horizontal"
android:id="@+id/linearMain5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000"
>
</LinearLayout>
</RelativeLayout>
<RelativeLayout
android:layout_width="1400dp"
android:layout_height="70dp"
android:background="#80ffffff"
android:layout_alignParentBottom="true"
android:layout_below="@+id/rl1"
android:id="@+id/rl2"
>
<ImageView
android:id="@+id/remote_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/remote_btn"
android:layout_alignParentBottom="true" />
<TextView
android:id="@+id/TEXT1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/remote_btn2"
android:layout_toRightOf="@+id/remote_btn"
android:text="MOVE" />
<ImageView
android:id="@+id/remote_btn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="42dp"
android:layout_toRightOf="@+id/TEXT1"
android:adjustViewBounds="true"
android:src="@drawable/remote_btn2" />
<TextView
android:id="@+id/TEXT2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/TEXT1"
android:layout_toRightOf="@+id/remote_btn2"
android:text="SELECT" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/rl3"
android:layout_width="wrap_content"
android:layout_height="800dip"
android:background="#10ffffff"
android:layout_marginLeft="10dip"
android:layout_marginBottom = "10dp"
android:layout_above="@+id/rl2"
>
<Button
android:id="@+id/buttoniptv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="42dp"
android:text="iptv"
android:background="#FF0000"/>
<Button
android:id="@+id/buttontvchannels"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/buttoniptv"
android:background="#FF0000"
android:text="tvchannels" />
<Button
android:id="@+id/buttoninternet"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/buttontvchannels"
android:background="#FF0000"
android:text="internet" />
</RelativeLayout>
</RelativeLayout>
答案 0 :(得分：0)
您目前正按升序添加视图
parentView.addView(child, 0);
按降序添加：
parentView.addView(child, parentView.getChildCount() - 1);