我想从一个登录直接跳转到Tabhost,却始终出现错误
登录代码如下:
package com.lsh.test;import com.lsh.main.MainTest;import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
public class PersonChatActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
ProgressBar pb=(ProgressBar) findViewById(R.id.progressBar1);
Button loginbtn=(Button) findViewById(R.id.loginbtn);
loginbtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
TextView username=(TextView) findViewById(R.id.username);
if(username.getText().toString().equals("12345")){
TextView password=(TextView) findViewById(R.id.password);
if(password.getText().toString().equals("12345")){
Intent intent=new Intent(PersonChatActivity.this,MainTest.class);
startActivity(intent);
}
}else{
Toast.makeText(PersonChatActivity.this, "登录失败", Toast.LENGTH_SHORT).show();
}
}
});
}
}跳转到的代码如下:
package com.lsh.main;import com.lsh.friend.ListFriend;
import com.lsh.test.R;import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;public class MainTest extends TabActivity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.recever);
Intent intent=getIntent();
TabHost tabHost=getTabHost();
//tab1好友列表
TabSpec tab1=tabHost.newTabSpec("Tag1");
tab1.setIndicator(""+R.drawable.friend_info_greet);
tab1.setContent(new Intent(this, ListFriend.class));
tabHost.addTab(tab1);
//tab2会话列表
TabSpec tab2=tabHost.newTabSpec("Tag2");
tab2.setIndicator(""+R.drawable.list_seek_mayknow);
tabHost.addTab(tab2);
//个人设置
TabSpec tab3=tabHost.newTabSpec("Tag3");
tab3.setIndicator(""+R.drawable.dialogue_icon);
tabHost.addTab(tab3);
}
}配置文件设置:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.lsh.test"
android:versionCode="1"
android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" /> <application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".PersonChatActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainTest"
android:label="@string/app_name" >
</activity>
<activity
android:name=".ListFriend"
android:label="@string/app_name" >
</activity>
</application></manifest>。
登录代码如下:
package com.lsh.test;import com.lsh.main.MainTest;import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
public class PersonChatActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
ProgressBar pb=(ProgressBar) findViewById(R.id.progressBar1);
Button loginbtn=(Button) findViewById(R.id.loginbtn);
loginbtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
TextView username=(TextView) findViewById(R.id.username);
if(username.getText().toString().equals("12345")){
TextView password=(TextView) findViewById(R.id.password);
if(password.getText().toString().equals("12345")){
Intent intent=new Intent(PersonChatActivity.this,MainTest.class);
startActivity(intent);
}
}else{
Toast.makeText(PersonChatActivity.this, "登录失败", Toast.LENGTH_SHORT).show();
}
}
});
}
}跳转到的代码如下:
package com.lsh.main;import com.lsh.friend.ListFriend;
import com.lsh.test.R;import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;public class MainTest extends TabActivity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.recever);
Intent intent=getIntent();
TabHost tabHost=getTabHost();
//tab1好友列表
TabSpec tab1=tabHost.newTabSpec("Tag1");
tab1.setIndicator(""+R.drawable.friend_info_greet);
tab1.setContent(new Intent(this, ListFriend.class));
tabHost.addTab(tab1);
//tab2会话列表
TabSpec tab2=tabHost.newTabSpec("Tag2");
tab2.setIndicator(""+R.drawable.list_seek_mayknow);
tabHost.addTab(tab2);
//个人设置
TabSpec tab3=tabHost.newTabSpec("Tag3");
tab3.setIndicator(""+R.drawable.dialogue_icon);
tabHost.addTab(tab3);
}
}配置文件设置:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.lsh.test"
android:versionCode="1"
android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" /> <application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".PersonChatActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainTest"
android:label="@string/app_name" >
</activity>
<activity
android:name=".ListFriend"
android:label="@string/app_name" >
</activity>
</application></manifest>。
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货