Ich bin neu in Android-Entwicklung hilft mir so für:ANDROID: Start neue Aktivitäten aus Schaltfläche klicken
ich eine XML-Datei mit 7 Tasten habe, mit dem Namen wie: btn_1 btn_2, ... btn_7
hierist die activity_main.xml
<Button
android:layout_width="103dp"
android:layout_height="82dp"
android:id="@+id/btn_1"
android:layout_below="@+id/heading1"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:background="@mipmap/pic1"
style="@style/Base.Widget.AppCompat.Button.Borderless"
android:clickable="true" />
und hier ist die MainActivity.java -
public class MainActivity extends AppCompatActivity {
private static Button btn1, btn2, btn3, btn4, btn5, btn6, btn7;
@
Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
OnClickButtonListener();
}
public void OnClickButtonListener() {
btn1 = (Button) findViewById(R.id.btn_1);
btn1.setOnClickListener(new View.OnClickListener() {@
Override
public void onClick(View v) {
Intent intent_1 = new Intent(MainActivity.this, MainActivity_1.class);
startActivity(intent_1);
}
});
btn2 = (Button) findViewById(R.id.btn_2);
btn2.setOnClickListener(new View.OnClickListener() {@
Override
public void onClick(View v) {
Intent intent_2 = new Intent(MainActivity.this, MainActivity_2.class);
startActivity(intent_2);
}
});
btn3 = (Button) findViewById(R.id.btn_3);
btn3.setOnClickListener(new View.OnClickListener() {@
Override
public void onClick(View v) {
Intent intent_3 = new Intent(MainActivity.this, MainActivity_3.class);
startActivity(intent_3);
}
});
btn4 = (Button) findViewById(R.id.btn_4);
btn4.setOnClickListener(new View.OnClickListener() {@
Override
public void onClick(View v) {
Intent intent_4 = new Intent(MainActivity.this, MainActivity_4.class);
startActivity(intent_4);
}
});
btn5 = (Button) findViewById(R.id.btn_5);
btn5.setOnClickListener(new View.OnClickListener() {@
Override
public void onClick(View v) {
Intent intent_5 = new Intent(MainActivity.this, MainActivity_5.class);
startActivity(intent_5);
}
});
btn6 = (Button) findViewById(R.id.btn_6);
btn6.setOnClickListener(new View.OnClickListener() {@
Override
public void onClick(View v) {
Intent intent_6 = new Intent(MainActivity.this, MainActivity_6.class);
startActivity(intent_6);
}
});
btn7 = (Button) findViewById(R.id.btn_7);
btn7.setOnClickListener(new View.OnClickListener() {@
Override
public void onClick(View v) {
Intent intent_7 = new Intent(MainActivity.this, MainActivity_7.class);
startActivity(intent_7);
}
});
}
}
Wenn ich auf die Schaltflächen klicke, stürzt App, aber überraschend nicht immer. Bei einem Versuch stürzt es beim Klicken auf btn_6 ab, und beim nächsten Versuch (beim erneuten Öffnen der App) stürzt es beim Drücken einer anderen Taste ab, sagen Sie jetzt Taste 5!
Wenn ich jetzt die App schließe und es erneut versuche, kann es beim Drücken von btn_3 abstürzen, während es im vorherigen Versuch perfekt funktioniert hätte.
Irgendwelche Einsichten? Vielen Dank. Hier
ist die jüngste Logcat:
05-25 23:43:17.139 17042-17042 <XX> W/ <YY>: VFY: unable to resolve virtual method 134: Landroid/app/Activity;.onEnterAnimationComplete()V
05-25 23:43:17.139 17042-17042 <XX> D/ <YY>: VFY: replacing opcode 0x6f at 0x140b
05-25 23:43:17.179 17042-17042 <XX> D/ <YY>: GC_FOR_ALLOC freed 345K, 3% free 54952K/56516K, paused 15ms, total 16ms
05-25 23:43:17.179 17042-17042 <XX> I/ <YY>-heap: Forcing collection of SoftReferences for 11040016-byte allocation
05-25 23:43:17.199 17042-17042 <XX> D/ <YY>: GC_BEFORE_OOM freed 3K, 3% free 54948K/56516K, paused 22ms, total 22ms
05-25 23:43:17.199 17042-17042 <XX> E/ <YY>-heap: Out of memory on a 11040016-byte allocation.
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: "main" prio=5 tid=1 RUNNABLE
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: | group="main" sCount=0 dsCount=0 obj=0x41e4f578 self=0x41e3a4e8
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: | sysTid=17042 nice=-16 sched=0/0 cgrp=apps handle=1074368508
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: | state=R schedstat=(3391699451 331158977 2372) utm=269 stm=70 core=0
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:596)
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444)
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:832)
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.content.res.Resources.loadDrawable(Resources.java:2988)
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.content.res.TypedArray.getDrawable(TypedArray.java:602)
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.view.View.<init>(View.java:3563)
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.widget.TextView.<init>(TextView.java:881)
05-25 23:43:17.199 17042-17042 <XX> I/ <YY>: at android.widget.Button.<init>(Button.java:108)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.support.v7.widget.AppCompatButton.<init>(AppCompatButton.java:62)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.support.v7.widget.AppCompatButton.<init>(AppCompatButton.java:58)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:105)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.support.v7.app.AppCompatDelegateImplV7.createView(AppCompatDelegateImplV7.java:972)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(AppCompatDelegateImplV7.java:1030)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:690)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:276)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:136)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at abcpqr.red.MainActivity_1.onCreate(MainActivity_1.java:21)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.app.Activity.performCreate(Activity.java:5372)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2257)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2349)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.app.ActivityThread.access$700(ActivityThread.java:159)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.os.Handler.dispatchMessage(Handler.java:99)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.os.Looper.loop(Looper.java:176)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at android.app.ActivityThread.main(ActivityThread.java:5419)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at java.lang.reflect.Method.invokeNative(Native Method)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at java.lang.reflect.Method.invoke(Method.java:525)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
05-25 23:43:17.204 17042-17042 <XX> I/ <YY>: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
05-25 23:43:17.209 17042-17042 <XX> I/ <YY>: at dalvik.system.NativeStart.main(Native Method)
05-25 23:43:17.209 17042-17042 <XX> D/skia: --- decoder->decode returned false
05-25 23:43:17.209 17042-17042 <XX> D/AndroidRuntime: Shutting down VM
05-25 23:43:17.209 17042-17042 <XX> W/ <YY>: threadid=1: thread exiting with uncaught exception (group=0x41e4e700)
05-25 23:43:17.209 17042-17042 <XX> E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.OutOfMemoryError
at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:596)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444)
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:832)
at android.content.res.Resources.loadDrawable(Resources.java:2988)
at android.content.res.TypedArray.getDrawable(TypedArray.java:602)
at android.view.View.<init>(View.java:3563)
at android.widget.TextView.<init>(TextView.java:881)
at android.widget.Button.<init>(Button.java:108)
at android.support.v7.widget.AppCompatButton.<init>(AppCompatButton.java:62)
at android.support.v7.widget.AppCompatButton.<init>(AppCompatButton.java:58)
at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:105)
at android.support.v7.app.AppCompatDelegateImplV7.createView(AppCompatDelegateImplV7.java:972)
at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(AppCompatDelegateImplV7.java:1030)
at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:690)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:276)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:136)
at abcpqr.red.MainActivity_1.onCreate(MainActivity_1.java:21)
at android.app.Activity.performCreate(Activity.java:5372)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2257)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2349)
at android.app.ActivityThread.access$700(ActivityThread.java:159)
t android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
at dalvik.system.NativeStart.main(Native Method)
05-25 23:43:25.074 17042-17042 <XX> I/Process: Sending signal. PID: 17042 SIG: 9
hier ist der Kern meiner xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/res-auto"
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="xxx.MainActivity">
<Button
android:layout_width="103dp"
android:layout_height="82dp"
android:id="@+id/btn_inside"
android:layout_below="@+id/LL_subheading1"
android:layout_centerHorizontal="true"
android:background="@mipmap/pic_small_inside"
style="@style/Widget.AppCompat.Button.Borderless"
android:clickable="true"/>
<Button
android:layout_width="103dp"
android:layout_height="82dp"
android:id="@+id/btn_on_the_side1"
android:layout_below="@+id/LL_subheading2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:background="@mipmap/pic_small_on_the_side1"
style="@style/Base.Widget.AppCompat.Button.Borderless"
android:clickable="true"/>
<Button
android:layout_width="103dp"
android:layout_height="82dp"
android:id="@+id/btn_on_the_side3"
android:layout_below="@+id/LL_subheading2"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:background="@mipmap/pic_small_on_the_side3"
style="@style/Base.Widget.AppCompat.Button.Borderless"
android:clickable="true"/>
<Button
android:layout_width="103dp"
android:layout_height="82dp"
android:id="@+id/btn_on_the_side2"
android:layout_alignTop="@+id/btn_on_the_side1"
android:layout_centerHorizontal="true"
android:background="@mipmap/pic_small_on_the_side2"
style="@style/Base.Widget.AppCompat.Button.Borderless"
android:clickable="true"/>
<Button
android:layout_width="103dp"
android:layout_height="82dp"
android:id="@+id/btn_outside1"
android:layout_below="@+id/LL_subheading3"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:background="@mipmap/pic_small_outside1"
style="@style/Base.Widget.AppCompat.Button.Borderless"
android:clickable="true"/>
<Button
android:layout_width="103dp"
android:layout_height="82dp"
android:id="@+id/btn_outside2"
android:layout_below="@+id/LL_subheading3"
android:layout_centerHorizontal="true"
android:background="@mipmap/pic_small_outside2"
style="@style/Base.Widget.AppCompat.Button.Borderless"
android:clickable="true"/>
<Button
android:layout_width="103dp"
android:layout_height="82dp"
android:id="@+id/btn_outside3"
android:layout_below="@+id/LL_subheading3"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:background="@mipmap/pic_small_outside3"
style="@style/Base.Widget.AppCompat.Button.Borderless"
android:clickable="true"/>
</RelativeLayout>
bitte posten Sie die Fehlermeldungen uns die Log Trace – somia
anzeigen setzen sollte, wenn die Anwendung –
stürzt die app stürzt auf meinem Handy ab ... mit der Standardmeldung: leider funktioniert die nicht mehr (aus irgendwelchen dummen Gründen funktioniert Emulator nicht) –