Application stops when click Button

Hi !

I have a problem with the second button of my MainActivity, if I click on it to open an activity, the app hangs; here are my different codes:

MainActivity.java

public class MainActivity extends AppCompatActivity {
Button b1;
Button b2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button)findViewById(R.id.btn_signIn);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(getApplicationContext(),login.class);
startActivity(intent);
}
});
b2 =(Button)findViewById(R.id.btn_signUp);
b2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent i=new Intent(getApplicationContext(),register.class);
startActivity(i);
}
});
}
}

MainActivity.xml

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.sofari.tiffanezni.MainActivity">
<LinearLayout
android:layout_width="373dp"
android:layout_height="495dp"
android:orientation="vertical"
android:weightSum="1"
android:background="@color/colorAccent"
tools:layout_editor_absoluteX="6dp"
tools:layout_editor_absoluteY="8dp"
tools:ignore="MissingConstraints">
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="-1dp"
android:layout_weight="0.12"
app:srcCompat="@drawable/ic_tiffa"
tools:layout_editor_absoluteX="-3dp"
tools:layout_editor_absoluteY="-2dp"
tools:ignore="ContentDescription" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="325dp"
tools:layout_editor_absoluteX="4dp"
tools:layout_editor_absoluteY="243dp">
<android.support.v7.widget.AppCompatButton
android:id="@+id/btn_signIn"
android:layout_width="234dp"
android:layout_height="48dp"
android:layout_above="@+id/btn_signUp"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="37dp"
android:background="@color/colorPrimary"
android:onClick="onClick"
android:text="Membre Login"
android:textColor="@android:color/white"
tools:layout_editor_absoluteX="75dp"
tools:layout_editor_absoluteY="313dp"
tools:ignore="HardcodedText" />
<android.support.v7.widget.AppCompatButton
android:id="@+id/btn_signUp"
android:layout_width="234dp"
android:layout_height="48dp"
android:layout_alignLeft="@+id/btn_signIn"
android:layout_alignParentBottom="true"
android:layout_alignStart="@+id/btn_signIn"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="76dp"
android:background="@color/colorPrimary"
android:onClick="onClick"
android:clickable="true"
android:text="Devenir donneur"
android:textColor="@android:color/white"
tools:layout_editor_absoluteX="75dp"
tools:layout_editor_absoluteY="386dp"
tools:ignore="HardcodedText" />
RelativeLayout>
LinearLayout>

The signUp button is for open registerActivity and the locking is on this button

public class register extends AppCompatActivity {
EditText editpseudo,editnom,editphone,editnaissance,editville,editsexe,editgroupe,editdatedon;
Button btnchose,btnAdd,btnlist;
ImageView imageView;
final int REQUEST_CODE_GALLERY = 999;
public static SQLiteHelper sqLiteHelper;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
init();
sqLiteHelper = new SQLiteHelper(this,"Donsang.db",null,1);
sqLiteHelper.queryData("CREATE TABLE IF NOT EXISTS INSCRIPTION ( id INTEGER PRIMARY KEY AUTOINCREMENT" +
"pseudo VARCHAR,nom VARCHAR,phone VARCHAR,naissance VARCHAR,ville VARCHAR,sexe VARCHAR,groupe VARCHAR" +
"datedon VARCHAR,image Blob");
btnchose.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
ActivityCompat.requestPermissions(register.this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE },
REQUEST_CODE_GALLERY);
}
});
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
if(requestCode == REQUEST_CODE_GALLERY){
if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("image / *");
startActivityForResult(intent,REQUEST_CODE_GALLERY);
}
else {
Toast.makeText(getApplicationContext(),"Vous n'avez pas la permission d'accéder à l'emplacement du fichier ",Toast.LENGTH_SHORT).show();
}
return;
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == REQUEST_CODE_GALLERY && resultCode == RESULT_OK && data != null ){
Uri uri = data.getData();
try {
InputStream inputStream = getContentResolver().openInputStream(uri);
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
imageView.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
private void init(){
editpseudo = (EditText)findViewById(R.id.input_pseudo);
editnom = (EditText)findViewById(R.id.input_nom);
editphone = (EditText)findViewById(R.id.input_phone);
editnaissance = (EditText)findViewById(R.id.input_datenaiss);
editville = (EditText)findViewById(R.id.input_ville);
editsexe = (EditText)findViewById(R.id.input_sexe);
editgroupe = (EditText)findViewById(R.id.input_groupe);
editdatedon = (EditText)findViewById(R.id.input_datedon);
imageView = (ImageView)findViewById(R.id.imageView4);
}
}

SQLIteHelper.java

public class SQLiteHelper extends SQLiteOpenHelper{
public SQLiteHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {
super(context, name, factory, version);
}
public void queryData(String sql){
SQLiteDatabase database = getWritableDatabase();
database.execSQL(sql);
database.close();
}
public void insertData(String pseudo,String nom,String phone,String naissance,String ville,String sexe,String groupe,String datedon,byte[] image ){
SQLiteDatabase database = getWritableDatabase();
String sql = "INSERT INTO INSCRIPTION VALUES ( NULL,?,?,?,?,?,?,?,?,?)";
SQLiteStatement statement = database.compileStatement(sql);
statement.clearBindings();
statement.bindString(1,pseudo);
statement.bindString(2,nom);
statement.bindString(3,phone);
statement.bindString(4,naissance);
statement.bindString(5,ville);
statement.bindString(6,sexe);
statement.bindString(7,groupe);
statement.bindString(8,datedon);
statement.bindBlob(9,image);
statement.executeInsert();
database.close();
}
public Cursor getData(String sql){
SQLiteDatabase database = getReadableDatabase();
return database.rawQuery(sql,null);
}
@Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
}
@Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
}
}

Manifest.xml

xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.sofari.tiffanezni">
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_tiffa"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<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=".login" />
<activity android:name=".register" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
intent-filter>
activity>
<activity android:name=".Menu">
activity>
application>
manifest>

Please someone to help me

2 Replies

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Sofari Agali9y ago
I used AsyncTask but the application still refuses to open a new activity, I presume that it is this second button alone that blocks
0
Sandy9y ago
Hi Sofari, Can you this task in other thread or do this task asynchronously this may be help you and application main thread will not hang because it is just creating the new thread and pointing the task function. Thanks
0