第一 - 對不起,如果我的問題有點啞,我是全新的Android開發...新到Android開發 - 着開始新的活動
我試圖從開始一個新的活動我的「 LAUNCHER「活動並在模擬器上運行它,但每次點擊」下一步「按鈕(這應該開始我的第二個活動)時,我會收到一條錯誤消息:」不幸的是,Omis掛機自由已停止「,然後關閉應用程序... 也,當我在模擬器中重新啓動相同的應用程序,而無需從Eclipse重新安裝它,它甚至不顯示我的第一個屏幕...
我甚至沒有知道我的問題在哪裏,所以我附上了5個代碼:
第1'活動佈局(名爲 「activity_open」)
<?xml version="1.0" encoding="utf-8" ?>
<LinearLayout 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:orientation="vertical"
tools:context=".OpenActivity"
android:background="#DCDCDC" >
<LinearLayout
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:gravity="center"
android:layout_weight="30" >
<TextView
android:id="@+id/tvEnterName"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:text="@string/stEnterName"
android:textSize="24sp" />
</LinearLayout>
<LinearLayout
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:gravity="center"
android:layout_weight="40" >
<EditText
android:id="@+id/etNameInput"
android:layout_width="250dp"
android:layout_height="fill_parent"
android:background="#FFFFFF"
android:focusableInTouchMode="true"
android:gravity="center"
android:hint="@string/stHintNameEnter"
android:singleLine="true" />
</LinearLayout>
<LinearLayout
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:gravity="center"
android:layout_weight="30" >
<Button
android:id="@+id/bNext"
android:layout_width="75dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/stNext"
android:textSize="24sp" />
</LinearLayout>
</LinearLayout>
第1'活動類(名爲 「OpenActivity」)
package com.omi.hangmanfree;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class OpenActivity extends Activity {
TextView tvEnterYourName;
EditText etName;
Button bContinue;
String myName, tmp;
final String errorStr = "\nYou must enter a name!";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_open);
initialize();
bContinue.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
myName = etName.getText().toString();
if(etName.getText().toString().equals("") == true)
{
tvEnterYourName.setText(tmp + errorStr);
tvEnterYourName.setTextColor(Color.RED);
}
else
{
try {
Intent gameIntent = new Intent("com.omi.hangmanfree.GAMEACTIVITY");
startActivity(gameIntent);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
}
private void initialize() {
// TODO Auto-generated method stub
tvEnterYourName = (TextView)findViewById(R.id.tvEnterName);
etName = (EditText)findViewById(R.id.etNameInput);
bContinue = (Button)findViewById(R.id.bNext);
myName = "~";
tmp = tvEnterYourName.getText().toString();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
finish();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_open, menu);
return true;
}
}
第2'活動類(名爲 「GameActivity」 ) package com.omi.hangmanfree;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.GridView;
import android.widget.TextView;
public class GameActivity extends Activity {
TextView tt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_game);
GridView gvGrid = (GridView)findViewById(R.id.gvHagdara);
tt.setText("_");
gvGrid.addView(tt);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_game, menu);
return true;
}
}
第2'活動佈局(名爲 「layout_game」)
<?xml version="1.0" encoding="utf-8" ?>
<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"
tools:context=".GameActivity" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world" />
<GridView
android:id="@+id/gvHagdara"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_below="@+id/textView1"
android:layout_centerInParent="false"
android:numColumns="auto_fit" >
</GridView>
</RelativeLayout>
5.清單
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.omi.hangmanfree"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".OpenActivity"
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=".GameActivity"
android:label="@string/title_activity_game" >
<intent-filter>
<action android:name="com.omi.hangmanfree.GAMEACTIVITY" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
我不是找代碼改進(我只學習語言),所以請不要發送給我改進代碼的建議(我知道有很多!)---我只是想讓這段代碼工作。
什麼是logcat的說? – vodich
由於您是新手:在Eclipse中打開LogCat視圖以獲取堆棧跟蹤並將其發佈到此處。 – WarrenFaith
logCat說: – omi