[英]App crashes when I open another activity
因此,我正在創建一個包含5個活動的應用程序,這些活動具有5個獨立的soundBoard,其中有5個獨立的soundPools。 我還在每個活動上使用導航抽屜。 當我運行該應用程序時,它可以打開前兩個活動,但是每當我調用第三個活動來打開應用程序時,它就會停止工作。 在內存監視器上,內存使用量達到峰值64MB,然后崩潰。 僅僅是模擬器限制為64MB,並且可以在手機上正常工作還是在某處出現內存泄漏? 當我切換到另一個活動時,是否需要調用onStop,然后在重新打開活動時再調用onStart,還是不需要? 如果這樣做,我將如何為此項目做呢?
這是查看我的崩潰日志的鏈接: https : //www.dropbox.com/s/x5obsexzgi2ofaa/crashlog2.docx?dl=0
MainActivity.java類:
public class MainActivity extends ActionBarActivity {
DrawerLayout mDrawerLayout;
ListView mDrawerList;
ActionBarDrawerToggle mDrawerToggle;
String[] mDrawerListItems;
SoundPool Ken;
int goodschoolId;
int challengeId;
int frontId;
int driverId;
int roadId;
int tiesId;
int noId;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Ken = new SoundPool(1, AudioManager.STREAM_MUSIC, 1);
goodschoolId = Ken.load(this, R.raw.goodschool,1);
challengeId = Ken.load(this, R.raw.challenge,1);
frontId = Ken.load(this, R.raw.front,1);
driverId = Ken.load(this, R.raw.driver,1);
roadId = Ken.load(this, R.raw.road,1);
tiesId = Ken.load(this, R.raw.ties,1);
noId = Ken.load(this, R.raw.no,1);
Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer);
mDrawerList = (ListView)findViewById(android.R.id.list);
mDrawerListItems = getResources().getStringArray(R.array.drawer_list);
mDrawerList.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mDrawerListItems));
mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
switch(position) {
case 0:
Intent i = new Intent(MainActivity.this, MrsClubb.class);
startActivity(i);
break;
case 1:
Intent ii = new Intent(MainActivity.this, MainActivity.class);
startActivity(ii);
break;
case 2:
Intent iii = new Intent(MainActivity.this, MrSmith.class);
startActivity(iii);
break;
}
mDrawerLayout.closeDrawer(mDrawerList);
}
});
mDrawerToggle = new ActionBarDrawerToggle(this,
mDrawerLayout,
toolbar,
R.string.drawer_open,
R.string.drawer_close){
public void onDrawerClosed(View v){
super.onDrawerClosed(v);
invalidateOptionsMenu();
syncState();
}
public void onDrawerOpened(View v){
super.onDrawerOpened(v);
invalidateOptionsMenu();
syncState();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
mDrawerToggle.syncState();
}
@Override
protected void onPostCreate(Bundle savedInstanceState){
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig){
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onOptionsItemSelected(MenuItem item){
switch (item.getItemId()){
case android.R.id.home: {
if (mDrawerLayout.isDrawerOpen(mDrawerList)){
mDrawerLayout.closeDrawer(mDrawerList);
} else {
mDrawerLayout.openDrawer(mDrawerList);
}
return true;
}
default: return super.onOptionsItemSelected(item);
}
}
public void playSound11(View view) {Ken.play(goodschoolId, 1, 1, 1, 0, 1);}
public void playSound12(View view) {Ken.play(challengeId, 1, 1, 1, 0, 1);}
public void playSound13(View view) {Ken.play(frontId, 1, 1, 1, 0, 1);}
public void playSound14(View view) {Ken.play(driverId, 1, 1, 1, 0, 1);}
public void playSound15(View view) {Ken.play(roadId, 1, 1, 1, 0, 1);}
public void playSound16(View view) {Ken.play(tiesId, 1, 1, 1, 0, 1);}
public void playSound17(View view) {Ken.play(noId, 1, 1, 1, 0, 1);}
}
崩潰的活動的代碼(與上面的代碼幾乎相同,只是調用了不同的聲音池和音頻文件)
activitymain.xml:
<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"
tools:context=".MyActivity"
android:orientation="vertical"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/primary"
app:theme="@style/ToolbarTheme"
app:popupTheme="@style/Theme.AppCompat"/>
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@mipmap/kenned"
>
<Button
android:layout_width="280dp"
android:layout_height="60dp"
android:onClick="playSound11"
android:id="@+id/button1"
android:background="@drawable/custombtn11"
android:layout_marginTop="61dp"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true" />
<Button
android:layout_width="270dp"
android:layout_height="40dp"
android:background="@drawable/custombtn12"
android:onClick="playSound12"
android:id="@+id/button2"
android:layout_below="@+id/button1"
android:layout_alignParentEnd="true"
/>
<Button
android:layout_width="260dp"
android:layout_height="39dp"
android:background="@drawable/custombtn13"
android:onClick="playSound13"
android:id="@+id/button3"
android:layout_below="@+id/button2"
android:layout_alignParentEnd="true"
/>
<Button
android:layout_width="330dp"
android:layout_height="65dp"
android:background="@drawable/custombtn14"
android:onClick="playSound14"
android:id="@+id/button4"
android:layout_below="@+id/button3"
android:layout_alignParentEnd="true"
/>
<Button
android:layout_width="180dp"
android:layout_height="40dp"
android:background="@drawable/custombtn15"
android:onClick="playSound15"
android:id="@+id/button5"
android:layout_below="@+id/button4"
android:layout_alignParentEnd="true"
/>
<Button
android:layout_width="300dp"
android:layout_height="65dp"
android:background="@drawable/custombtn16"
android:onClick="playSound16"
android:id="@+id/button6"
android:layout_below="@+id/button5"
android:layout_alignParentEnd="true"
/>
<Button
android:layout_width="120dp"
android:layout_height="40dp"
android:background="@drawable/custombtn18"
android:onClick="playSound17"
android:id="@+id/button8"
android:layout_below="@+id/button6"
android:layout_alignParentEnd="true"
/>
</RelativeLayout>
<ListView
android:id="@android:id/list"
android:background="@android:color/white"
android:layout_width="305dp"
android:layout_height="match_parent"
android:layout_gravity="start"/>
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
導致xml崩潰的活動代碼與主要活動xml幾乎相同,不同之處在於按鈕和背景不同。
Mrsmith的xml:
<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"
tools:context=".MyActivity"
android:orientation="vertical"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/primary"
app:theme="@style/ToolbarTheme"
app:popupTheme="@style/Theme.AppCompat"/>
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@mipmap/smithee">
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn23"
android:onClick="playSound19"
android:id="@+id/button16"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true" />
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn24"
android:onClick="playSound20"
android:id="@+id/button17"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true" />
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn22"
android:onClick="playSound18"
android:id="@+id/button15"
android:layout_below="@+id/button17"
android:layout_alignParentEnd="true" />
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn27"
android:onClick="playSound23"
android:id="@+id/button20"
android:layout_below="@+id/button16"
android:layout_alignParentStart="true" />
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn25"
android:onClick="playSound21"
android:id="@+id/button18"
android:layout_below="@+id/button20"
android:layout_alignParentStart="true" />
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn26"
android:onClick="playSound22"
android:id="@+id/button19"
android:layout_below="@+id/button15"
android:layout_alignStart="@+id/button15" />
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn28"
android:onClick="playSound24"
android:id="@+id/button21"
android:layout_below="@+id/button18"
android:layout_alignParentStart="true" />
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn29"
android:onClick="playSound25"
android:id="@+id/button22"
android:layout_alignTop="@+id/button21"
android:layout_alignStart="@+id/button19" />
<Button
android:layout_width="170dp"
android:layout_height="100dp"
android:background="@drawable/custombtn30"
android:onClick="playSound26"
android:id="@+id/button23"
android:layout_below="@+id/button21"
android:layout_centerHorizontal="true" />
</RelativeLayout>
<ListView
android:id="@android:id/list"
android:background="@android:color/white"
android:layout_width="305dp"
android:layout_height="match_parent"
android:layout_gravity="start"/>
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
如果您需要更多代碼,請告訴我。 不知道是什么問題。
確實,問題似乎出在仿真器RAM的容量太小。 您已將一些沉重的可繪制對象用作導航抽屜中Button
的背景。 由於這些大型圖像之一,RAM可用性低似乎引發了OutOfMemory
錯誤。
轉到AVD管理器,將RAM的大小至少增加到512 MB,然后嘗試再次運行該應用程序。 如果可用,也請嘗試在真實設備上進行測試。
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