Here is my question:
I would like to implement two buttons in one activity. One is calculate BMI, another is go to check time. I wish users could see two buttons in the same activity, also depends on what they want to do. (These functions are not work at the same time, it is seperately. Also, I implement the button return to the home page both in these two activities.)
In the Android emulator, the message comes " app continued stopping."
Following is the MainActivity.java file:
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// bt1 = to BMI btn = TO DateCheck
Button bt1 = findViewById(R.id.button1);
Button btn = findViewById(R.id.button);
bt1.setOnClickListener(v -> {
// 指定要呼叫的 Activity Class
Intent newAct = new Intent();
newAct.setClass(MainActivity.this, BMI.class);
// 呼叫新的 Activity Class
startActivity(newAct);
});
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent newAct2 = new Intent();
newAct2.setClass(MainActivity.this,Time_Date.class);
startActivity(newAct2);
}
});
}
}
Following is the **Manifest.xml file**:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myapplication">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.MyApplication">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Time_Date"/>
<activity android:name=".BMI" />
</application>
</manifest>
Following is **activity_main.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"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:background="#87CEEA">
<!-- to BMI -->
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="100dp"
android:layout_marginLeft="100dp"
android:layout_marginTop="50dp"
android:layout_marginEnd="100dp"
android:layout_marginRight="100dp"
android:backgroundTint="@color/pink"
android:text="@string/to_bmi"
android:textAlignment="center"
android:textColor="@color/purple_500"
android:textStyle="bold"
android:textSize="16sp"/>
<!--to DateCheck-->
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/button1"
android:layout_alignParentStart="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="100dp"
android:layout_marginTop="30dp"
android:layout_marginEnd="100dp"
android:text="@string/view_datetime"
android:textStyle="bold"
android:textSize="16sp"
android:textColor="@color/purple_500"
android:backgroundTint="@color/pink"
/>
</RelativeLayout>
Thanks!
These messages are the stacktrace after I pressed the button that caused the app stopped:
com.google.android.apps.gsa.shared.speech.b.g: Error reading from input stream
at com.google.android.apps.gsa.staticplugins.recognizer.j.a.a(SourceFile:28)
at com.google.android.apps.gsa.staticplugins.recognizer.j.b.run(SourceFile:15)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at com.google.android.apps.gsa.shared.util.concurrent.a.ag.run(Unknown Source:4)
at com.google.android.apps.gsa.shared.util.concurrent.a.bo.run(SourceFile:4)
at com.google.android.apps.gsa.shared.util.concurrent.a.bo.run(SourceFile:4)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
at java.lang.Thread.run(Thread.java:764)
at com.google.android.apps.gsa.shared.util.concurrent.a.ak.run(SourceFile:6)
Caused by: com.google.android.apps.gsa.shared.exception.GsaIOException: Error code: 393238 | Buffer overflow, no available space.
at com.google.android.apps.gsa.speech.audio.Tee.f(SourceFile:103)
at com.google.android.apps.gsa.speech.audio.au.read(SourceFile:2)
at java.io.InputStream.read(InputStream.java:101)
at com.google.android.apps.gsa.speech.audio.ao.run(SourceFile:18)
at com.google.android.apps.gsa.speech.audio.an.run(SourceFile:2)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at com.google.android.apps.gsa.shared.util.concurrent.a.ag.run(Unknown Source:4)
at com.google.android.apps.gsa.shared.util.concurrent.a.bo.run(SourceFile:4)
at com.google.android.apps.gsa.shared.util.concurrent.a.bo.run(SourceFile:4)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
at java.lang.Thread.run(Thread.java:764)
at com.google.android.apps.gsa.shared.util.concurrent.a.ak.run(SourceFile:6)
