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我的应用程序中有 4 个活动,它们是菜单项,如果我单击第一个活动的菜单,所有项目都会显示,但在第二个或前面的活动菜单上是不可点击的,并且菜单项也没有显示,已经给出所有活动的编码相同,但我仍然没有得到结果。这是我的第二个活动的代码

public class About extends Activity {
LinearLayout line1, line2;
ImageView menu;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_about);
line1=(LinearLayout) findViewById(R.id.ll1);
line2=(LinearLayout)findViewById(R.id.ll2);

menu=(ImageView)findViewById(R.id.menu);

menu.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {
menu.setVisibility(View.VISIBLE);
// TODO Auto-generated method stub
line1.setVisibility(View.VISIBLE);
 if (line2.getVisibility() == View.INVISIBLE || line2.getVisibility() == View.GONE) {
  line2.setVisibility(View.VISIBLE); } 
 else { 
  line2.setVisibility(View.INVISIBLE); 
 } 
 }
});

      ImageView home = (ImageView) findViewById(R.id.home);
      home.setOnClickListener(new View.OnClickListener() {
         public void onClick(View v){
            startActivity(new Intent(About.this, Home.class));
         }
          });

      ImageView jobs = (ImageView) findViewById(R.id.jobs);
       jobs.setOnClickListener(new View.OnClickListener() {
         public void onClick(View v){
            startActivity(new Intent(About.this, Jobs.class));
         }
          });

      ImageView log = (ImageView) findViewById(R.id.log);
      log.setOnClickListener(new View.OnClickListener() {
         public void onClick(View v){
            startActivity(new Intent(About.this, Login.class));
         }
          });


      ImageView about = (ImageView) findViewById(R.id.about);
      about.setOnClickListener(new View.OnClickListener() {
         public void onClick(View v){
            startActivity(new Intent(About.this, About.class));
         }
          });

xml 代码。

<LinearLayout
android:id="@+id/ll1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/black" 
android:layout_alignParentTop="true"
android:layout_alignParentRight="true">

  <ImageView
android:id="@+id/menu"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/menu" />
  </LinearLayout>

 <LinearLayout
android:id="@+id/ll2"
android:layout_width="199dp"
android:layout_height="wrap_content"
android:background="@color/black" 
android:layout_toRightOf="@+id/ll1"
android:visibility="gone"
>


<ImageView
android:id="@+id/about"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_above="@+id/textView1"
android:layout_toLeftOf="@+id/jobs"
android:src="@drawable/about" />

<ImageView
android:id="@+id/jobs"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/jobs" />

 <ImageView
  android:id="@+id/log"
  android:layout_width="50dp"
  android:layout_height="50dp"
  android:src="@drawable/log" />

 <ImageView
android:id="@+id/home"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/home" />
</LinearLayout>
4

1 回答 1

1

尝试添加android:clickable="true"到布局 xml 中的每个 ImageView。

于 2013-02-25T12:25:03.423 回答