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我hav 如果有人知道请帮忙将会非常有用.. 谢谢。问题是,当我点击按钮,我想它出现我的第一个列表。当我的第二个按钮点击它似乎没有什么 第三个活动:如何使用两个不同的按钮在同一屏幕上启动两个不同的活动?
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="ca.my.demo.buttondemo.ThirdActivity" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="Gala Olympos" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignRight="@+id/textView1"
android:layout_below="@+id/textView1"
android:layout_marginTop="20dp"
android:text="Gala Delta" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView2"
android:layout_below="@+id/textView2"
android:layout_marginTop="23dp"
android:text="Krema galaktos" />
</RelativeLayout>
Second activity:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="ca.my.demo.buttondemo.SecondActivity" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Mprizoles Xoirines" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_below="@+id/textView1"
android:layout_marginTop="16dp"
android:text="Mprizoles Mosxarisies" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView2"
android:layout_below="@+id/textView2"
android:layout_marginTop="18dp"
android:text="Kotopoula" />
</RelativeLayout>
Main Activity:
package ca.my.demo.buttondemo;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
public class MainActivity extends ActionBarActivity {
private final String TAG = "DemoButtonApp";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setupMessageButton();
}
private void setupMessageButton() {
Button messageButton = (Button) findViewById(R.id.btnDisplayMessage);
messageButton.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v) {
Log.i(TAG, "You clicked the button");
startActivity(new Intent(MainActivity.this, SecondActivity.class));
}
}
) ;
}
}
发布'activity_main.xml'的内容,但是你只绑定一个'OnClickListener',另一个按钮不会做任何事情......你必须给另一个按钮分配一个'OnClickListener',就像'messageButton'一样。 – Wakim 2014-09-13 16:50:32