标签在Android中不起作用

时间:2013-06-27 00:51:40

标签: android

我遇到了障碍,我的标签式布局与其内容重叠。我目前正在创建一个Android应用。这是第一个选项卡打开时。 (链接到下面的图片):

enter image description here

当我打开第二个标签时会发生这种情况(链接到下面的图片):

enter image description here

您可能会注意到“Button”按钮与MainActivity重叠。那是我的问题。我不希望它们重叠。我只想让按钮显示其他活动(没有重叠)。这是我的MainActivity.java代码的一部分:

package com.example.currencyconverter;


import android.app.ActionBar;
import android.app.Activity;
import android.app.Fragment;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.StrictMode;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    addListenerOnButton();
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);

    ActionBar actionBar = getActionBar();
    actionBar.setSubtitle("Created By Rohit Nandakumar");
    actionBar.setTitle("Currency Converter"); 
// Specify that tabs should be displayed in the action bar.
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

ActionBar.Tab Frag1 = actionBar.newTab().setText("Converter");
ActionBar.Tab Frag2 = actionBar.newTab().setText("Currencies");
ActionBar.Tab Frag3 = actionBar.newTab().setText("News");

Fragment fragment1 = new Fragment1();
Fragment fragment2 = new Fragment2();
Fragment fragment3 = new Fragment3();

Frag1.setTabListener(new MyTabsListener(fragment1));
Frag2.setTabListener(new MyTabsListener(fragment2));
Frag3.setTabListener(new MyTabsListener(fragment3));

actionBar.addTab(Frag1);
actionBar.addTab(Frag2);
actionBar.addTab(Frag3);

这是Fragment1.java代码:

package com.example.currencyconverter;

import android.os.Bundle;
import android.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class Fragment1 extends Fragment{
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.activity_main, container, false);
}
}

这是我的Fragment2.java代码:

package com.example.currencyconverter;

import android.os.Bundle;
import android.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class Fragment2 extends Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    return inflater.inflate(R.layout.fragment2, container, false);
}
}

这是我的MyTabsListener.java文件:

package com.example.currencyconverter;

import android.app.ActionBar.Tab;
import android.app.ActionBar.TabListener;
import android.app.Fragment;
import android.app.FragmentTransaction;

public class MyTabsListener implements TabListener {

    public Fragment fragment;

    public MyTabsListener(Fragment fragment) {
        this.fragment = fragment;
    }


    @Override
    public void onTabReselected(Tab tab, FragmentTransaction ft) {
    }

    @Override
    public void onTabSelected(Tab tab, FragmentTransaction ft) {
        ft.replace(R.id.fragment_container, fragment);
        }

    @Override
    public void onTabUnselected(Tab tab, FragmentTransaction ft) {

    }



}

有什么问题?我究竟做错了什么。我搜索了谷歌,但我找不到解决方案。非常感谢任何帮助。

0 个答案:

没有答案