有时候在群里加入的新人总会喜欢问一些过去的问题 有时候不想回答 是因为回答的次数多了
不回答又打击人的积极性 谁让自己接触的早呢 为了省劲还是把简单的东西作为指导篇吧
多个activity之间的传值 其实就是onActivityResult，然后别忘了还有一个action的问题 就是在主xml中添加自己的action以便于识别，最后次activity别忘了finansh。
public class Wizard extends Activity {
private TextView step1result, step2result, step3result;
public static final String INTENT_STEP1 = "com.novoda.STEP1";
public static final String INTENT_STEP2 = "com.novoda.STEP2";
public static final String INTENT_STEP3 = "com.novoda.STEP3";
private static final int STEP1 = 1;
private static final int STEP2 = 2;
private static final int STEP3 = 3;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.wizard);
this.step1result = (TextView)findViewById(R.id.step1result);
this.step2result = (TextView)findViewById(R.id.step2result);
this.step3result = (TextView)findViewById(R.id.step3result);
startActivityForResult(new Intent(Wizard.INTENT_STEP1), STEP1);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case STEP1:
this.step1result.setText(data.getStringExtra("STEP1RESULT"));
startActivityForResult(new Intent(Wizard.INTENT_STEP2), STEP2);
break;
case STEP2:
this.step2result.setText(data.getStringExtra("STEP2RESULT"));
startActivityForResult(new Intent(Wizard.INTENT_STEP3), STEP3);
break;
case STEP3:
this.step3result.setText(data.getStringExtra("STEP3RESULT"));
break;
}
}
}
public class Step1 extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.step1);
Button nextStep = (Button)findViewById(R.id.goto2);
nextStep.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent it = new Intent();
it.putExtra("STEP1RESULT", ((EditText)findViewById(R.id.step1value)).getText()
.toString());
setResult(Activity.RESULT_OK, it);
finish();
}
});
}
}
后面的step2 step3都是一样的了
然后还有主xml
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".Wizard" 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=".Step1" android:label="Step1">
<intent-filter>
<action android:name="com.novoda.STEP1" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name=".Step2" android:label="Step2">
<intent-filter>
<action android:name="com.novoda.STEP2" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name=".Step3" android:label="Step3">
<intent-filter>
<action android:name="com.novoda.STEP3" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="7" />
</manifest>
