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我的Android应用程序出现了一些问题。这是一个应用程序来确定使用加速度计的手的稳定性。我有两个活动，Vert.java和Calcu.java。在Vert.java中有一个包含25个png文件的动画功能。它还具有检索x，y和z轴加速度值的功能。将合并后的值传递给Calcu.java，其中使用if循环给出特定值范围的分数。但是，运行“Calcu”活动时会再次出现。我是android新手。请帮忙。活动堆叠在现有活动上
这是我的代码..
Vert.java
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.content.Intent;
import android.graphics.drawable.AnimationDrawable;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.os.Handler;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
public class Vert extends Activity implements SensorEventListener{
Sensor accelerometer1;
SensorManager sm1;
float x1=0,y1=0,z1=0,tx1=0,ty1=0,tz1=0,oldx1=0,oldy1=0,oldz1=0,totalx1=0,totaly1=0,totalz1=0;
Intent m1;
int z;
ImageView img;
Timer timer;
Handler handler;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
overridePendingTransition(R.anim.slide_in,R.anim.slide_out);
setContentView(R.layout.vert);
sm1=(SensorManager)getSystemService(SENSOR_SERVICE);
accelerometer1=sm1.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
sm1.registerListener(this, accelerometer1,SensorManager.SENSOR_DELAY_NORMAL);
img=(ImageView)findViewById(R.id.ivAnim);
AnimationDrawable animation=new AnimationDrawable();
animation.addFrame(getResources().getDrawable(R.drawable.a),200);
animation.addFrame(getResources().getDrawable(R.drawable.b),200);
animation.addFrame(getResources().getDrawable(R.drawable.c),200);
animation.addFrame(getResources().getDrawable(R.drawable.d),200);
animation.addFrame(getResources().getDrawable(R.drawable.e),200);
animation.addFrame(getResources().getDrawable(R.drawable.f),200);
animation.addFrame(getResources().getDrawable(R.drawable.g),200);
animation.addFrame(getResources().getDrawable(R.drawable.h),200);
animation.addFrame(getResources().getDrawable(R.drawable.i),200);
animation.addFrame(getResources().getDrawable(R.drawable.j),200);
animation.addFrame(getResources().getDrawable(R.drawable.k),200);
animation.addFrame(getResources().getDrawable(R.drawable.l),200);
animation.addFrame(getResources().getDrawable(R.drawable.m),200);
animation.addFrame(getResources().getDrawable(R.drawable.n),200);
animation.addFrame(getResources().getDrawable(R.drawable.o),200);
animation.addFrame(getResources().getDrawable(R.drawable.p),200);
animation.addFrame(getResources().getDrawable(R.drawable.q),200);
animation.addFrame(getResources().getDrawable(R.drawable.r),200);
animation.addFrame(getResources().getDrawable(R.drawable.s),200);
animation.addFrame(getResources().getDrawable(R.drawable.t),200);
animation.addFrame(getResources().getDrawable(R.drawable.u),200);
animation.addFrame(getResources().getDrawable(R.drawable.v),200);
animation.addFrame(getResources().getDrawable(R.drawable.w),200);
animation.addFrame(getResources().getDrawable(R.drawable.x),200);
animation.addFrame(getResources().getDrawable(R.drawable.y),200);
animation.setOneShot(false);
img.setImageDrawable(animation);
animation.start();
}
@Override
public void onSensorChanged(SensorEvent event) {
// TODO Auto-generated method stub
x1=event.values[0];
y1=event.values[1];
z1=event.values[2];
timer=new Timer();
timer.scheduleAtFixedRate(new TimerTask(){
@Override
public void run() {
// TODO Auto-generated method stub
oldx1=x1;
oldy1=y1;
oldz1=z1;
}
}, 200, 200);
String str=String.valueOf(tx1);
m1=new Intent(Vert.this,Calcu.class);
m1.putExtra("score", str);
if(oldx1>x1){
totalx1=oldx1-x1;
}
else if(x1>oldx1){
totalx1=x1-oldx1;
}
if(oldy1>y1){
totaly1=oldy1-y1;
}
else if(y1>oldy1){
totaly1=y1-oldy1;
}
if(oldz1>z1){
totalz1=oldz1-z1;
}
else if(z1>oldz1){
totalz1=z1-oldz1;
}
tx1=tx1+(totalx1+totaly1+totalz1);
handler=new Handler();
handler.postDelayed(new Runnable(){
@Override
public void run() {
// TODO Auto-generated method stub
startActivity(Vert.this.m1);
m1.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
finish();
}
},5000);
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// TODO Auto-generated method stub
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
this.sm1.unregisterListener(this);
timer.cancel();
}
}
Vert.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/vertpageplain"
android:padding="20dp"
android:orientation="vertical" >
<TextView
android:id="@+id/tvVertHead"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:textSize="30dp"
android:textColor="#138808"
android:text="KEEP YOUR HANDS STEADY TILL THE BOTTLE GETS EMPTY..." />
<ImageView
android:id="@+id/ivAnim"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:src="@drawable/a" />
</LinearLayout>
Calcu.java
import java.io.ByteArrayOutputStream;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageButton;
import android.widget.TextView;
public class Calcu extends Activity{
float krip1;
double score1;
String sScore;
TextView finalScore1;
ImageButton bB1,bS1,bE1;
Bitmap b;
Intent intent,chooser;
Uri imageUri;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
overridePendingTransition(R.anim.slide_in,R.anim.slide_out);
setContentView(R.layout.result);
String pky1 = getIntent().getStringExtra("score");
krip1=Float.valueOf(pky1);
finalScore1=(TextView)findViewById(R.id.tvScore1);
bB1=(ImageButton)findViewById(R.id.bMain1);
bS1=(ImageButton)findViewById(R.id.bShare1);
bE1=(ImageButton)findViewById(R.id.bExit1);
bB1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent n=new Intent(Calcu.this,Play.class);
n.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
n.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(n);
}
});
bS1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(score1==10){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorea);
}
else if(score1==9.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoreb);
}
else if(score1==9){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorec);
}
else if(score1==8.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scored);
}
else if(score1==8){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoree);
}
else if(score1==7.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoref);
}
else if(score1==7){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoreg);
}
else if(score1==6.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoreg);
}
else if(score1==6){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorei);
}
else if(score1==5.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorej);
}
else if(score1==5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorek);
}
else if(score1==4.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorel);
}
else if(score1==4){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorem);
}
else if(score1==3.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoren);
}
else if(score1==3){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoreo);
}
else if(score1==2.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorep);
}
else if(score1==2){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoreq);
}
else if(score1==1.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scorer);
}
else if(score1==1){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scores);
}
else if(score1==0.5){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoret);
}
else if(score1==0){
b=BitmapFactory.decodeResource(getResources(), R.drawable.scoreu);
}
intent=new Intent(Intent.ACTION_SEND);
intent.setType("image/png");
ByteArrayOutputStream bytes=new ByteArrayOutputStream();
b.compress(Bitmap.CompressFormat.PNG, 100, bytes);
String path=MediaStore.Images.Media.insertImage(getContentResolver(), b, "Title", null);
imageUri=Uri.parse(path);
intent.putExtra(Intent.EXTRA_TITLE, "SOBER SCORE CHALLENGE");
intent.putExtra(Intent.EXTRA_SUBJECT, "Sober score : "+score1+"What's your's?");
intent.putExtra(Intent.EXTRA_STREAM, imageUri);
intent.putExtra(Intent.EXTRA_TEXT, "This is beta version. The final version will soon be available in play store.");
chooser=Intent.createChooser(intent, "Share your Sober Score...");
startActivity(chooser);
}
});
bE1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent exit=new Intent(getApplicationContext(),MainActivity.class);
exit.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
exit.putExtra("EXIT", true);
startActivity(exit);
}
});
if(krip1<90){
score1=10;
}
else if(90<krip1 && krip1<100){
score1=9.5;
}
else if(100<krip1 && krip1<110){
score1=9;
}
else if(110<krip1 && krip1<135){
score1=8.5;
}
else if(135<krip1 && krip1<150){
score1=8;
}
else if(150<krip1 && krip1<160){
score1=7.5;
}
else if(160<krip1 && krip1<175){
score1=7;
}
else if(175<krip1 && krip1<185){
score1=6.5;
}
else if(185<krip1 && krip1<195){
score1=6;
}
else if(195<krip1 && krip1<210){
score1=5.5;
}
else if(210<krip1 && krip1<215){
score1=5;
}
else if(215<krip1 && krip1<225){
score1=4.5;
}
else if(225<krip1 && krip1<245){
score1=4;
}
else if(245<krip1 && krip1<265){
score1=3.5;
}
else if(265<krip1 && krip1<285){
score1=3;
}
else if(285<krip1 && krip1<305){
score1=2.5;
}
else if(305<krip1 && krip1<335){
score1=2;
}
else if(335<krip1 && krip1<365){
score1=1.5;
}
else if(365<krip1 && krip1<395){
score1=1;
}
else if(395<krip1 && krip1<425){
score1=0.5;
}
else if(krip1>425){
score1=0;
}
finalScore1.setText(""+score1+"");
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
finish();
}
@Override
public void onBackPressed() {
// TODO Auto-generated method stub
super.onBackPressed();
Intent back=new Intent(Calcu.this,MainActivity.class);
back.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
back.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(back);
Calcu.this.finish();
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
finish();
}
}
为result.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/resultpageplain"
android:orientation="vertical"
>
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:src="@drawable/sobercent" />
<TextView
android:id="@+id/tvScore1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:textSize="70dp"
android:textColor="#138808"
android:text="X" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<ImageButton
android:id="@+id/bMain1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="0dp"
android:layout_marginTop="30dp"
android:layout_marginLeft="30dp"
android:src="@drawable/bplayagain" />
<ImageButton
android:id="@+id/bShare1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="0dp"
android:layout_marginTop="30dp"
android:layout_marginLeft="50dp"
android:src="@drawable/bshare" />
</LinearLayout>
<ImageButton
android:id="@+id/bExit1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="0dp"
android:layout_gravity="center"
android:gravity="center"
android:src="@drawable/bexit" />
</LinearLayout>
我不知道是谁upvoted这一点，但它无法理解，如果任何问题。 –
删除这一行可能有助于m1.addFlags（Intent.FLAG_ACTIVITY_REORDER_TO_FRONT）; 使用此m1.setFlags（Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP）; – Haroon
在清单文件中添加android：launchMode =“singleTask”。 –