我要用intent传递一个数字,看网上说intent不能直接传递int型,可以把数字放进bundle内,但是还是不能正常显示。
如何把second.java的第15行换为“ int abc = Integer.parseInt(bundle.getString("deptname"));”,就会报错,如下图。

MainActivity.java:
package com.liuyuan.test;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void button(View v){
int aaString = 111;
Intent intent = new Intent(MainActivity.this,second.class);
Bundle bundle = new Bundle();
bundle.putInt("deptname", 123);
intent.putExtras(bundle);
startActivity(intent);
}
}
second.java:
package com.liuyuan.test;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;
public class second extends Activity{
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
TextView textView = (TextView) findViewById(R.id.text123);
Bundle bundle = new Bundle();
bundle = this.getIntent().getExtras();
String abc = bundle.getString("deptname");
textView.setText(abc);
}
}
activity_main.xml:
<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="com.liuyuan.test.MainActivity" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<Button
android:onClick="button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world"
/>
</LinearLayout>
</RelativeLayout>
second.xml
<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="com.liuyuan.test.MainActivity" >
<TextView
android:id="@+id/text123"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="" />
</RelativeLayout>
------解决思路----------------------
额,第十五行不是应该写成int abc = bundle.getInt("deptname");
textView.setText(abc+“”);