两个Activity之间传数据，点击按钮意外终止
代码如下，麻烦高手指点下，搞了大半天了，没个头绪。
Main.java
- Java code
package song.com.BmiTest;import android.app.Activity;import android.content.Intent;import android.database.CursorJoiner.Result;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.RadioButton;public class Main extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.layout1); Button bn =(Button)findViewById(R.id.bn); bn.setOnClickListener(new Button.OnClickListener(){ @Override public void onClick(View v) { EditText wt =(EditText)findViewById(R.id.weight); EditText ht =(EditText)findViewById(R.id.height); double height=Double.parseDouble(ht.getText().toString()); double weight=Double.parseDouble(wt.getText().toString()); RadioButton male =(RadioButton)findViewById(R.id.male); String gender=male.isSelected() ?"boy":"girl"; Intent intent = new Intent(Main.this,Result.class); Bundle data = new Bundle(); data.putDouble("height", height); data.putDouble("weight", weight); data.putString("gender", gender); intent.putExtras(data); startActivity(intent); } }); }}Result.java
- Java code
package song.com.BmiTest;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.widget.TextView;public class Result extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.result); TextView result =(TextView)findViewById(R.id.result); Intent intent =getIntent(); Bundle data =intent.getExtras(); String gender =data.getString("gender"); double height =data.getDouble("height"); double weight =data.getDouble("weight"); result.setText("您的性别是"+gender+"您的体重是"+weight+"kg"+","+"身高是"+height+"m"); } }AndroidManifest.xml
- Java code
<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="song.com.BmiTest" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="10" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name=".Main" 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=".Result" android:label="@string/result_name" ></activity> </application></manifest>
main.xml
- Java code
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:background="#ffffff"> <TextView android:layout_width="fill_parent" android:layout_height="50dp" android:text="@string/welcome" android:textSize="30dp" android:textColor="#ff0000" android:gravity="center"> </TextView> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center" > <ImageButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/d2" android:id="@+id/imgbutton" ></ImageButton>" </LinearLayout></LinearLayout>
result.xml
- Java code
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/result" /> </LinearLayout>
[解决办法]
DDMS，贴下LOG
[解决办法]
看下logcat哪里报错应该就明白了
[解决办法]
这么明显的你的Main里面引用的layout1，结果你贴出来的是main
而且木有EditText
[解决办法]
layout1.xml 呢？。。。。再帖下logcat看下，应该是小问题，或许楼主已经解决了
[解决办法]
会不会是类型转换那？
[解决办法]
是不是你的第二个Activity没有在manifest.xml里面注册？
[解决办法]
layout1.xml 呢？
[解决办法]
看这个，
import android.database.CursorJoiner.Result;
引用错了
[解决办法]
import song.com.BmiTest.Result;
你把Result这个Activity子类导成了数据库的Result类了
[解决办法]
Intent intent = new Intent(Main.this,Result.class); 这个Result的问题，没有引用自己的ResultActivity 引用错了